JPH0633732A - Vertical axis engine lubricator oil storage device - Google Patents

Abstract

PURPOSE:To feed oil securely from inside of a crank chamber to an oil storing chamber outside the crank chamber with a simple structure, and reduce deterioration of oil in the oil storing chamber outside the crank chamber and prolong the service life of the oil. CONSTITUTION:An oil receiving chamber 52 inside a crank chamber is communicated with an oil storing chamber 58 outside crank chamber through an inter- chamber communication part 61. A gas separation chamber 66 is provided in a gear case 15 positioned at the lower side of a crank case 7 between an inter-chamber communication part 61 and the oil storing chamber 58 outside the crank chamber. The flown blowby gas BG is separated from oil in the gas separation chamber 66. A separated gas outlet 68 is provided at the top of the gas separation chamber 66, and an oil hole 67 is opened at a position lower than the separated gas outlet 68. Through the oil hole 67, the gas separation chamber 66 is communicated with the oil storing chamber 58 outside the crank chamber.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil storage device for a vertical shaft engine lubrication device, in which oil in the lower portion of the crank chamber is transferred to and stored in an oil storage chamber outside the crank chamber.

[0002]

2. Description of the Related Art As an oil accommodating device for a lubricating device of an engine of this type, as shown in FIG. 7, for example, an oil receiving chamber in a crank chamber is provided below a crank chamber (51) of an engine (E).
Storage chamber tank (57) equipped with (52) and mounted outside the crank chamber
An oil storage chamber (58) outside the crank chamber is provided inside the oil reception chamber (52) and an oil storage chamber (5) outside the crank chamber.
And 8) are communicated with each other through the inter-chamber communication portion (61), and the inter-chamber oil transfer means (P) is provided, and the crank chamber oil receiving chamber is provided.
The oil in (52) is transferred from the inter-chamber communication portion (61) to the oil chamber outside the crank chamber (58), and the oil level (L2) in the oil chamber outside the crank chamber (58) is transferred to the oil receiving chamber in the crank chamber (58). Five
There is a structure in which it is maintained higher than the oil level (L1) in 2) (Japanese Patent Laid-Open No. 59-5820).

Although the above-mentioned prior art is a horizontal shaft engine, the oil chamber (58) outside the crank chamber is constructed as follows.

That is, the engine (E) is inclined as a whole, and the cylinder block (11) opens a side wall of the crankcase (7) opposite to the cylinder part (21), and a baffle plate ( The storage chamber tank (57) is additionally provided with the storage chamber (116) interposed therebetween.

In the storage chamber tank (57), a baffle plate (11
A partition wall (118) is erected from the lower part to a predetermined height along 6), and a passage (119) is provided on the baffle plate (116) side of the partition wall (118) and the outside of the crank chamber is provided on the opposite side. An oil storage chamber (58) is formed.

The inter-chamber communication portion (61) is opened at the bottom of the baffle plate (116), and a check valve (114) is attached to the outlet side of the inter-chamber communication hole (61). The crank chamber oil receiving chamber (52) communicates with the crank chamber outside oil storage chamber (58) through the inter-chamber communication portion (61) and the passage (119) in this order.

The check valve (114) is opened by the positive pressure component (112) and closed by the negative pressure component (113) of the pulsating pressure (111) generated in the crank chamber (51). As a result, the inter-chamber oil transfer means (P) is constituted by this positive pressure component (112), and the oil in the crank chamber oil receiving chamber (52) is pressure-fed to the passage (119) and is passed along with the blow-by gas. After being pushed up inside the (119), it is sent to the oil chamber outside the crank chamber (58) over the upper end of the partition plate (118).

[0008]

In the above-mentioned prior art, the oil in the crank chamber (51) passes through the passage along with the blow-by gas.
Since the inside of the (119) rises and flows into the oil chamber (51) outside the crankcase, there are the following problems.

That is, the blow-by gas flowing into the passage (119) rises while sufficiently touching the oil in the passage (119), and the oil outside the crank chamber is accommodated from the gas outlet (68) formed at the upper end of the passage (119). It is guided into the upper space of the chamber (58).
On the other hand, the oil returned to the crank chamber oil storage chamber (52) after lubricating each part of the engine is sent out from the inter-chamber communication part (61) to the passage (119). Then, the oil that easily touches the blow-by gas in the passage (119) for a long time and easily deteriorates flows from the gas outlet (68) over the upper end of the partition wall (118) into the oil chamber (58) outside the crank chamber in order. To do. As a result, the oil in the oil storage chamber (58) outside the crank chamber is mixed with the oil that gradually flows in and is prone to deterioration, so that there is a problem that the entire oil deteriorates early.

Further, in the above-mentioned prior art, since the inter-chamber oil transfer means (P) is constituted by the positive pressure component (112) of the pulsating pressure (111) generated in the crank chamber (51), the following problem There is.

That is, in a multi-cylinder engine, since the phase of the reciprocating motion of each piston is shifted from the viewpoint of placing importance on reduction of vibration, there is no volume change in the crank chamber due to the reciprocating motion of the pistons, and pulsating pressure is hardly generated. Many are configured as follows. As described above, the above-described conventional technique cannot be applied to the multi-cylinder engine in which the pulsating pressure is not generated in the crank chamber, because the oil in the crank chamber oil receiving chamber cannot be sent to the crank chamber oil receiving chamber.

An object of the present invention is to reliably transfer oil from the crank chamber to the oil chamber outside the crank chamber with a simple structure, and to reduce deterioration of the oil due to blow-by gas in the oil chamber outside the crank chamber to reduce the oil. To extend the life of the.

[0013]

In order to achieve the above object, the present invention is characterized in that the basic structure is configured as follows.

Invention 1 A gear case (15) is arranged below the crank case (7) of the vertical axis engine (E), and the inter-chamber communication portion (61) and the crankcase outside oil are arranged in the gear case (15). A gas separation chamber (66) is provided between the storage chamber (58) and blow-by gas (BG) and oil flowing out of the crank chamber (51) via the inter-chamber communication portion (61). Gas separation chamber configured to be separable in (66)
A separation gas outlet (68) is provided in the upper part of (66), an oil hole (67) is opened below the separation gas outlet (68), and a gas separation chamber (66) is opened through this oil hole (67). And oil storage chamber outside the crank chamber (58)
And communicated with.

Invention 2 In the above Invention 1, the partition wall (69) for partitioning the gas separation chamber (66) and the crank chamber oil receiving chamber (52) is a gear case.
The structure formed integrally with the bottom wall (30) of (15) was added.

Invention 3 In the oil accommodating device for the lubrication device for the vertical axis engine of Invention 1, the gear case (15) is arranged below the crank case (7), and the gas separation chamber (66) is disposed in the gear case (15). ) Is provided in the lower space of the crankcase (7),
A gas separation chamber (66) was provided between the inter-chamber communication portion (61) and the crank chamber outside oil storage chamber (58).

Invention 4 In any one of the above inventions 1 to 3, the inter-room oil transfer means (P) is blow-by generated in the crank chamber (51) with the operation of the vertical axis engine (E). It was constructed by using the pressure (Pb) of gas (BG).

[0018]

[Operation] The blow-by gas (BG) that has flowed into the gas separation chamber (66) from the inside of the crank chamber (51) is separated from the oil and does not flow into the oil storage chamber (58) outside the crank chamber. )
It is led out of the crank chamber (51) from the separated gas outlet (68) at the upper part of the. On the other hand, the oil that sequentially flows into the gas separation chamber (66) is separated from the blow-by gas and is quickly transferred from the lower oil hole (67) into the crankcase outside oil storage chamber (58). At this time, the oil located above the oil hole (67) in the gas separation chamber (66) does not come into contact with the blow-by gas for a long time.
Oil storage chamber outside the crank chamber that stays in the gas separation chamber (66)
It does not flow into (58).

A partition wall (69) for partitioning the gas separation chamber (66) and the crank chamber oil receiving chamber (52) is provided in the gear case (15).
When formed integrally with the bottom wall (30), the partition wall (69) reinforces the bottom wall (30) of the gear case (15).

When the blow-by gas pressure (Pb) generated in the crank chamber (51) along with the operation of the vertical axis engine (E) is utilized to form the inter-room oil transfer means (P), The inter-room oil transfer means (P) operates as follows.

With the start of operation of the vertical axis engine (E), blow-by gas (BG) begins to flow from the combustion chamber into the crank chamber (51), and the blow-by gas pressure (Pb) in the crank chamber increases. Then, during operation of the vertical axis engine (E), the blow-by gas (BG) continues to flow into the crank chamber (51), so the blow-by gas pressure (Pb) is constantly increased, and the excess blow-by gas ( Only BG) is discharged out of the crank chamber (51).

As a result, the blow-by gas pressure (Pb) in the crank chamber (51) is not reduced even when the engine speed and load conditions change, and is always maintained at a high pressure condition. Oil level (L1) in the indoor oil receiving chamber (52)
Is pushed down to the specified oil level (L0) and its height position is maintained.

[0023]

The present invention has the following effects since it is constructed and operates as described above.

(B) The oil in the oil chamber outside the crank chamber is deteriorated because the blow-by gas does not pass through the oil chamber and the oil flowing in from the oil hole has not been in contact with the blow-by gas for a long time in the gas separation chamber. Never. On the other hand, the oil that is in long contact with the blow-by gas in the gas separation chamber does not stay in the gas separation chamber and mix with the oil in the oil chamber outside the crank chamber during engine operation, and the oil in the oil chamber outside the crank chamber is contaminated. do not do.

(B) The amount of oil that is in long contact with the blow-by gas in the gas separation chamber is small with respect to the total amount of oil that returns to the crank chamber oil receiving chamber even if the oil returns to the crank chamber when the engine is stopped. As a result, the rate at which the entire oil is polluted can be minimized. As a result, deterioration of the entire oil due to blow-by gas is reduced, and the life of the oil can be extended.

(C) Since the gas separation chamber is formed in the gear case or, alternatively, in the crank case, the gas separation chamber can be provided between the inter-communicating part and the oil chamber outside the crank chamber. Regardless, the outer shape of the engine can be reduced to a small size.

(D) When the partition wall for partitioning the gas separation chamber and the crank chamber oil receiving chamber is formed integrally with the bottom wall of the gear case, the partition wall reinforces the bottom wall of the gear case, so that the strength of the gear case is improved. In addition, the gas separation chamber can be manufactured at low cost.

(E) When the inter-room oil transfer means is constructed by utilizing the blow-by gas pressure generated in the crank chamber due to the operation of the engine, unlike the prior art, the pulsation due to the reciprocating motion of the piston in the crank chamber Even in a multi-cylinder engine that does not generate pressure, the present invention can be applied because blow-by gas pressure is generated in the crank chamber, and since the inter-room oil transfer means only uses the blow-by gas pressure, it is extremely simple. It can be implemented in a structure.

(D) Further, in this case, the blow-by gas pressure in the crank chamber does not decrease even when the engine speed or load changes, and the oil level in the crank chamber oil receiving chamber can be pushed down sufficiently low at all times. . As a result, the oil in the crank chamber does not continue to be abnormally splashed by the rotary motion part such as the crank arm, and it is possible to prevent the oil from being overheated by this amount and eliminate the poor lubrication and the oil deterioration.

[0030]

1 to 4 show an embodiment of the present invention, which is an oil accommodating device outside a crank chamber of a lubricating system for a forced water-cooled horizontal type vertical ordinate two-cylinder overhead valve vortex chamber type diesel engine.

[A] Basic Structure of Vertical Axis Engine Main Body FIG. 1 is a central longitudinal front view of the vertical axis engine main body, and FIG. 2 is a transverse bottom view of the gear case portion.

As shown in FIG. 1, this vertical axis engine (E)
The cylinder head (12) on the left side of the cylinder block (11).
The head cover (13) is fixed in order, and the gear case (15) is fixed to the lower side of the cylinder block (11) and the lubrication pump (19) is fixed to the outer surface of the lower wall. Further, as shown in FIG. 2, a pump housing of the flange type fuel injection pump (17) is formed in the lower half portion of the rear side surface of the cylinder block (11).

Pistons (22) are fitted in the two cylinder holes (21) so as to be slidable left and right. Each piston (2
2) are connected to the crankshaft (2
It is connected to the crank pin (25) of 4), and both crank pins
In (25), the phases of rotation are different from each other by 180 degrees.

The crankshaft (24) passes vertically through the crankcase (7) and the gear case (15) to form a crankcase.
(7) The lower wall (26), the intermediate wall (27), and the upper wall (28) are rotatably supported by a tunnel bearing device (29). The crankshaft (24) has a fan drive pulley (34) outside the bottom wall (30) of the gear case (15), a crank gear (36) inside the gear case (15) and outside the crankcase upper wall (28). Flywheel (3
5) are fixed respectively.

In the gear case (15), the timing transmission gear (36
To 39), a lubrication pump (19), and a governor device (49). This timing transmission gear (36 to 39) is a crank gear.
The valve drive cam gear (38) and the fuel injection cam gear (39) are interlockingly connected to the (36) through the idle gear (37), and the lubrication pump is connected to the crank gear (36) through the oil pump gear (41). (19)
It is composed of interlocking links.

[B] Structure of Oil Containing Device of Lubricating Device FIG. 3 is a vertical sectional view of the cylinder block portion of the vertical axis engine body, and FIG. 4 is an enlarged view of the periphery of the gas separation chamber.

As shown in FIG. 3, an oil receiving chamber (52) for the crank chamber is provided in the gear case (15) communicating with the lower portion of the crank chamber (51), and is arranged below the crank chamber (51). Among the timing transmission gears (36 to 39), the specified oil level (L0) is set at a position slightly higher than the bottom surface of the crank gear (36) located at the lowest position.
Has been set.

A storage chamber tank (57) is fixed to the right side surface of the cylinder block (11) and the right side surface of the gear case (15) via a gasket (56). This cell tank (57)
Is formed in a box shape with an opening on the crank chamber (51) side, and is partitioned by the gasket (56) into the crank chamber (51) and the gear case (15). ) Is formed.

A breather pipe (77) is attached to the upper surface of the storage chamber tank (57) so that the gas chamber space (59) of the oil storage chamber (58) outside the crank chamber is located in the breather pipe (77).
It is connected to an oil separation device (not shown) via the.

Further, among the peripheral walls of the storage chamber tank (57), a tank outer wall (60) which is a side wall far from the cylinder (21).
Is formed so as to extend substantially along the plane orthogonal to the axis orthogonal to the cylinder axis (20), and the protrusion of the oil storage chamber tank (53) in the right lateral direction is reduced to reduce the overall width of the engine. I am doing it.

As shown in FIG. 4, a partition wall (69) is integrally formed on the gear case (15) so as to project upward from the bottom wall (30) at a position separated from the right end portion. ) The upper end is in contact with the lower surface of the lower crankcase wall (26). Then, the gasket that partitions the right end of the gear case (15)
A gas separation chamber (66) is formed between (56) and the partition wall (69).

Further, the partition wall (69) is provided with an inter-communicating hole (61) penetrating from one side surface to the other side surface.
The communication inlet (62) of (61) is located below the specified oil level (L0) and opens into the crank chamber oil receiving chamber (52).

An oil hole (67) is formed in the gasket (56) at the lower portion of the right lateral surface of the gas separation chamber (66). This allows
The crank chamber oil receiving chamber (52) communicates with the crank chamber outside oil storage chamber (58) through the inter-chamber communication hole (61), the gas separation chamber (66), and the oil hole (67) in this order.

A separation gas outlet pipe (86) is erected upward on the crankcase lower wall (26) which defines the upper surface of the gas separation chamber (66). The upper portion of the separated gas outlet pipe (84) is bent toward the storage chamber tank (57) side between the intermediate wall (27) and the upper wall (28) of the crankcase (7), and is placed above the gasket (56). The separation gas outlet (68) at the tip penetrates through the side portion and opens into the air-layer space (59) in the crank chamber outside oil storage chamber (58).

In this vertical axis engine (E), blow-by gas (BG) is generated in the crank chamber (51) during operation, and the pressure (Pb) of this blow-by gas (BG) is used to make room between the chambers. An oil transfer means (P) is constructed.

On the other hand, from the inside of the crank chamber (51), the inside of the gear case (15), the inter-chamber communication hole (61), the gas separation chamber (66), the separated gas outlet pipe (86) and the crank chamber outside oil storage chamber (58). A breather lead-out path (75) communicating with an oil separation device (not shown) is formed through the air layer space (59) of FIG.

As a result, blow-by gas (BG) remains in the crank chamber (51) while the inter-chamber communication hole (61) is blocked with oil.
Is accumulated, and the pressure (Pb) of the accumulated blow-by gas (BG)
As a result, the oil in the crank chamber oil receiving chamber (52) is transferred to the crank chamber outside oil storage chamber (58).

Of the blow-by gas (BG) in the crank chamber (51), the excess blow-by gas (BG) as the oil transfer means (P) is discharged from the breather lead-out path (75) to the oil separating device. Be led to.

As shown in FIG. 1, the storage chamber tank (5
7) The upper wall is provided with an oil inspection port (78). This oil inspection port (78)
The oil detecting portion (81) on the tip end side of the oil detecting rod (80) is inserted in the oil detecting port (78), but in order to maintain the pressure in the crank chamber (51) An oil cap (82) fixed to the rod base end side of the rod (80) is openably and closably covered, and blow-by gas (BG) in the crank chamber (51) is discharged from this oil gate (78). Sealed to prevent leakage.

[C] Oil Storage Method of Lubricating Device Next, the oil storage method of the above lubricating device will be described.

[C1] State of oil entering the crank chamber When the vertical axis engine (E) is stopped, both the crank chamber (51) and the oil chamber outside the crank chamber (58) are at atmospheric pressure. Has become. For this reason, the oil level (L1) of the oil inside the crank chamber oil receiving chamber (52) has risen to the same height as the oil level (L2) of the oil inside the crank chamber outside oil storage chamber (58), It is higher than the specified oil level (L0) and has entered the crank chamber (51).

[C2] Transfer by Extrusion of Oil When the vertical axis engine (E) starts operating, a part of the expanded gas in the combustion chamber leaks from between the sliding surfaces of the piston (22) and the cylinder hole (21). This becomes blow-by gas (BG) and begins to flow into the crank chamber (51), and the internal pressure of the crank chamber (51) rises.

The oil in the crank chamber (51) is pushed downward by this blow-by gas pressure (Pb), and the inter-chamber communication passage (61), the gas separation chamber (66) and the oil hole (67) are pushed from the communication inlet (62). ) In order to flow into the oil chamber (58) outside the crank chamber. As a result, the oil level (L1) of the crank chamber oil receiving chamber (52) is pushed down to the specified oil level (L0), and the oil level (L2) of the crank chamber outside oil storage chamber (58) is pushed up.

[C3] Exhaust of Air The air above the oil surface in the oil chamber (58) outside the crank chamber is passed through the breather pipe (77) and the intake passage as the oil level (L2) inside rises, and the combustion chamber Is sucked into.

[C4] Derivation of blow-by gas [C2] Oil level (L0) pushed down to the specified oil level (L0) by the transfer of [C2] oil by extrusion and the discharge of [C3] air
In 1), when the blow-by gas pressure (Pb) in the crank chamber (51) further increases, it falls below the specified oil level (L0), and the oil level (L1)
The communication inlet (62) of the inter-room communication passageway (61) is opened above. The blow-by gas (BG) in the crank chamber (51) flows into the inter-chamber communication passage (61) from the opened communication inlet (62), and is guided to the oil separation device from the breather discharge path (75). The discharge of blow-by gas is continued until the engine (E) is stopped.

[C5] Reverse Flow of Oil into Crank Chamber When the vertical axis engine (E) stops operating, the crank chamber (51)
The inside gradually returns to atmospheric pressure. Due to this pressure drop, the oil pushed into the oil chamber outside the crank chamber (58) flows back into the crank chamber (61) through the inter-chamber communication passage (61), and inside the crank chamber oil receiving chamber (52). When the oil level (L1) rises to the same level as the oil level (L2) in the oil chamber (58) outside the crank chamber, the backflow of oil stops. This allows the above
Return to the state of oil entering the crank chamber as described in [C1].

In the above embodiments, the forced water-cooled horizontal type vertical axis diesel engine is explained, but the present invention may be any vertical axis engine that produces blow-by gas in the crank chamber, and any type such as an air-cooled engine or a gasoline engine may be used. It can also be applied to other engines.

In the above embodiment, the partition wall for the gas separation chamber and the oil receiving chamber for the crank chamber is formed by integrally projecting from the bottom wall of the gear case. However, instead of this, the partition wall extends downward from the lower wall of the crank case. It may be formed by projecting. Further, the gas separation chamber may be formed in the lower space of the crankcase between the inter-chamber communication portion and the oil chamber outside the crank chamber.

The oil storage chamber outside the crankcase may be formed separately from the crankcase, or a plurality of it can be provided, and the installation location is not limited to that of the above embodiment.

Further, the inter-chamber communication portion may be constructed by piping inside the crank chamber, inside the meat wall, or outside the crank chamber.

In the above embodiment, the prescribed oil level is set at a position slightly higher than the lower surface of the crank gear (36) located at the lowest position.
Although (L0) is set, instead of this, the specified oil level (L0) may be set below the lower surface of the crank gear (36). In this case, the oil in the crank chamber oil receiving chamber (52) is not scratched by the timing transmission gear.

As shown in FIG. 5, the separation gas outlet pipe (86) may be inserted at the upper end into the crankcase upper wall (28) to open the separation gas outlet (68) outside the crank chamber.

As shown in FIG. 6, an upper part of the accommodating chamber tank (57) may be provided with an oil separating device (76) so as to communicate with the air layer space of the crank chamber outside oil accommodating chamber (58). The oil separation device may be omitted and the device may be connected to the atmosphere.

Further, the oil inspection port (78) can be provided in the crankcase upper wall (28) as shown in FIG.

[Brief description of drawings]

FIG. 1 is a central longitudinal front view of a vertical axis engine body showing an embodiment of the present invention.

FIG. 2 is a transverse bottom view of a gear case portion.

FIG. 3 is a vertical cross-sectional view of a cylinder block portion of a vertical axis engine body.

FIG. 4 is an enlarged view around the gas separation chamber.

FIG. 5 is a vertical sectional front view of an essential part of an oil storage portion showing a modified example.

FIG. 6 is a view corresponding to FIG. 10, showing another modification.

FIG. 7 is a schematic vertical cross-sectional view of an oil accommodating device outside a crankcase of a lubricating device for an engine, showing a conventional technique.

[Explanation of symbols]

7 ... Crank case, 15 ... Gear case, 51 ... Crank chamber, 52 ... Crank chamber oil receiving chamber, 58 ... Crank chamber outside oil storage chamber, 61 ... Inter-chamber communication part (inter-chamber communication hole), 66 ... Gas separation chamber, 67 … Oil hole, 68… Separation gas outlet, 69… Partition, E…
Engine, L1 ... Crank chamber oil receiving chamber oil level, L2
... oil surface outside the crank chamber, BG ... blow-by gas, P ... inter-chamber oil transfer means, Pb ... blow-by gas pressure.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nobuhiro Yamamoto 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Factory (72) Inventor Shoichi Yamamoto 64, Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Factory (72) Inventor Akira Hayaya 64 Ishizukitamachi, Sakai City, Osaka Prefecture, Kubota Sakai Co., Ltd. (72) Inventor, Yutaka Watanabe 64 Ishizukitamachi, Sakai City, Osaka Prefecture, Kubota Sakai Co., Ltd.

Claims (4)

[Claims] 1. A crank chamber oil receiving chamber (58) is provided below a crank chamber (51) of a vertical axis engine (E), and a crank chamber outside oil receiving chamber (58) is provided outside the crank chamber (51). (52) communicates with the oil storage chamber (58) outside the crank chamber via the inter-chamber communication portion (61), and the vertical engine (E) is provided with the inter-room oil transfer means (P). By the operation of the oil transfer means (P), the oil in the crank chamber oil receiving chamber (52) is transferred from the inter-chamber communication portion (61) to the crank chamber outside oil storage chamber (58), and the crank chamber outside oil storage chamber (58). ) Inside the crank chamber oil receiving chamber (52) is configured to be maintained higher than the oil level (L1) in the oil chamber of the vertical axis engine lubricator oil storage device, the vertical axis engine (L Place the gear case (15) below the crank case (7) of E), and in this gear case (15) A gas separation chamber (66) is provided between the inter-chamber communication portion (61) and the crank chamber outside oil storage chamber (58), and blow-by flows out of the crank chamber (51) through the inter-chamber communication portion (61). Gas (BG) and oil are separated into this gas separation chamber (66)
The separation gas outlet (68) is provided at the upper part of the gas separation chamber (66), and the oil hole (67) is opened below the separation gas outlet (68). An oil storage device for a lubricating device for a vertical axis engine, characterized in that the gas separation chamber (66) and the oil storage chamber (58) outside the crank chamber are communicated with each other via 67). 2. The partition wall (69) for partitioning the gas separation chamber (66) and the crank chamber oil receiving chamber (52) is formed integrally with the bottom wall (30) of the gear case (15). Oil storage device for the lubricating device of the vertical axis engine described. 3. The oil accommodating device for a lubrication device for a vertical axis engine according to claim 1, wherein a gear case (15) is arranged below the crank case (7), and the gas separation chamber is provided in the gear case (15). Crankcase instead of the structure with (66)
In the lower space of (7), the oil of the lubricating device for the vertical axis engine, which is configured by providing the gas separation chamber (66) between the inter-chamber communication portion (61) and the crank chamber oil storage chamber (58) Containment device. 4. The inter-chamber oil transfer means (P) is constructed by utilizing the pressure (Pb) of blow-by gas (BG) generated in the crank chamber (51) along with the operation of the vertical axis engine (E). Claim 1
An oil storage device for a lubricating device for a vertical axis engine according to any one of claims 1 to 3.