Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
  • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
  • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
  • F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
  • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
  • F03C1/00—Reciprocating-piston liquid engines
  • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
  • F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
  • F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
  • F03C1/0639—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
  • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
  • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
  • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
  • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
  • F04B1/141—Details or component parts
  • F04B1/145—Housings
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
  • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
  • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
  • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
  • F04B1/141—Details or component parts
  • F04B1/146—Swash plates; Actuating elements

Definitions

• the present invention relates to a pump reversible axial piston motor, with modular multi-barrels.
• the present invention proposes to remedy these drawbacks.
• the invention as characterized in the claims solves the problem of creating a reversible axial piston motor in a pump, a motor with which, on the one hand, a pressure ac ⁇ tion surface is obtained. much larger than in the conventional 20 engines due to the multiplicity of barrels, so pistons, and on the other hand, a much smaller footprint, being in cylindrical form.
• the advantages obtained thanks to this invention consist essentially in the fact that the torque obtained is significantly higher, at equal pressure, than in traditional motors. Conversely, at equal torque, the engine operates with less pressure and its service life increases.
• the motor according to the invention has much smaller and simplifying dimensions 0, making it possible to adapt it in confined installations, such as drill holes in the ground or vehicle axles.
• REPLACEMENT SHEET Figure 1 is a brief perspective view, allowing ⁇ as much to understand the operation of the engine and aperce ⁇ see the main constituent parts.
• FIG. 2 shows, in longitudinal section and with the "intake” compartment located at the front of the figure, an engine produced and assembled according to the invention and comprising, only, the addition of a modular barrel.
• FIG. 3 represents the position of the tenons of junction between barrels, at. horizontal half-section.
• Figure 4 is a detail showing the junction between the piston foot and the inclined plate.
• Figures 1 and 2 show differently an axial piston motor, reversible in a modular multi-barrel pump, comprising: 1) A fixed motor housing (1).
• a closure assembly consisting of a final body (3) having a projecting end for receiving a drive member, of a final casing element
• the central body can serve among other r conduit ré ⁇ frigérant. 5 °)
• a device making it possible to separate the annular space included between the casings (1-5) and the barrel-let assembly of base-closure body (2-3) into two semi-annular sealed compartments between them, a device which is made up of three main elements: First,
• An upper glass seal (6) constructed according to two different diameters, the largest being at the interior radius of the casing, the smallest at the radius of the barrels, makes it possible to close up one of the compartments and leave the other at the intake of the engine supply pressure.
• This glass seal is tight on the upper face of the base barrel (2) on which it is supported by the spring (10) guided by the central member (16) and the tension of which can be adjusted by a nut. (15) screwed onto the central organ. The seal around the member is ensured by O-ring (45).
• Two lateral support bars (8) on the barrels arranged according to two diametrically opposite generatrices of the base barrel-closure body assembly (2-3) and also coming to bear, on the one hand, on the 'shoulder presented by the upper glass seal (6) in line with the change in diameter and, on the other hand, on the lower glass seal (7).
• These bars are held in place in two mortises (f) machined in the body of the casing and in which they can undergo a slight la ⁇ and axial movement while ensuring the seal between the surfaces in contact by gentle friction.
• the support of these bars on the lower glass seal (7) is provided by the device (11-12-13-14) which comprises a ball (11) leaving a free lateral play to the bar, a piece U-shaped guide (12) a support spring (13) adjustable by a screw (14).
• the lateral support against the barrels is ensured by leaf springs (9) arranged in recesses cut out on the back of the bars and taking their reaction at the bottom of the mortise.
• the upper spring can preferably be held in place by a circlip (29).
• the contact surface of the bars against the barrels receives an enveloping profile in an arc of a circle, of the radius of the barrels and of a length very slightly greater than the diameter of the piston supply hole, in order to ensure the necessary times of delay, at their top and bottom dead centers.
• this enveloping profile exists only at the right of the barrels part. It is not made at the point of contact with the upper glass seal, to allow sufficient axial clearance for the latter.
• An inclined plate (34) (shown in one piece in the figures but which may have other configurations) ar ⁇ stopped, upwards, by a shoulder on the central member and kept immobilized by a key (27) comprises a device allowing the feet of pistons to "swivel" freely, without the risk of escaping from their housing.
• This device consisting of a removable plate (44) in which an arc complementary to the raceway of the ball joints is machined, is held in place by screws (43).
• a housing extension (32) which can be assembled by flange.
• One or more bearings (37) allowing the rotation of the barrels around the central member maintained axially by one or more circlips (38) leaving a free axial clearance.
• the engine operates in a manner identical to conventional axial piston engines. The only difference is in the way of feeding the pistons.
• the supply is done by lateral orifices (h) drilled in the barrels, the pressure being administered by the orifice (a) provided in the flange (20), the compartment ⁇ "intake” opposite the orifice being continuously supplied.
• the pistons des ⁇ cend along the inclined plates and rotate the barrels, until the supplied orifice is opposite the half-chamber vented by the orifice (d), the piston then being in the low position. The pistons can then go back up and the movement is renewed.
• the external power take-off is via the projecting end of the closing block.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
• Reciprocating Pumps (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9354393

Family Applications (1)

Country Status (3)

Families Citing this family (2)

Family Cites Families (4)

• 1987
  • 1987-08-24 FR FR8711877A patent/FR2619860B1/fr not_active Expired
• 1988
  • 1988-08-16 EP EP19880907335 patent/EP0379501A1/de not_active Withdrawn
  • 1988-08-16 WO PCT/FR1988/000415 patent/WO1989002032A1/fr not_active Ceased

Non-Patent Citations (1)

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