TR201908251A2 - HERMETIC COMPRESSOR WITH INCREASED PERFORMANCE - Google Patents

Abstract

The present invention includes a cylinder (3), a piston (4) operating in the cylinder (3), a cylinder head (5), a cylinder (3) and a cylinder head (5) suitable for use in cooling devices. a valve plate (6), a suction hole (7) located on the valve plate (6) and providing the entry of the refrigerant into the cylinder (3) during the suction movement of the piston (4), a suction valve (8), the pressing movement of the piston (4) It relates to a hermetic type compressor (1) comprising an exhaust port (9) and an exhaust valve (10) that allows the evacuation of refrigerant gas from the cylinder (3) during

Description

DESCRIPTION HERMETIC COMPRESSORS WITH INCREASED PERFORMANCE This invention is combined with a hermetic type compressor suitable for use in refrigeration appliances. Refrigerant gas cooling in reciprocating hermetic compressors An important part of the losses occurring in the transmission of the refrigerant gas compressed in the cylinder, passing through the opened exhaust valve, into the cylinder head exhaust volume. occurs during transmission. in the state of the art in the compression movement of the piston in the cylinder in a hermetic compressor The refrigerant gas passes through the exhaust hole on the valve plate and enters the cylinder. It fills the exhaust chamber inside the head and from there it goes into the cooling cycle. is sent. Determining the operating performance of hermetic compressors One of the factors is the flow rate of the refrigerant gas entering the cylinder. Mechanical strength The heat transfer coefficient of the valve plate made of high steel material is high. temperature of the refrigerant gas sucked from the cooling system increases as it passes over the table. The temperature rise is specific to the refrigerant gas. cause an increase in the volume of the gas and a decrease in the gas mass injected into the cooling system. opens. As a result, the volumetric efficiency of the compressor and therefore the cooling capacity decreases. In the valve plate and cylinder head area Cylinder head with valve plate to solve the problem of overheating of refrigerant gas A heat insulating plastic material is placed between them. However, plastic insulation during assembly and as the material is in direct contact with the cylinder head. It is deformed under high temperature operating conditions and the refrigerant gas Patent application U, exhaust in a hermetic type compressor relates to valve regulation.

Patent application EP no. EP, valve in a hermetic type compressor relates to the setup.

In the patent application no. WO20l, the heat contained in a compressor] A valve plate with improved insulation is described.

Patent application no. EP3455497(A1) suitable for use in cooling devices, containing a sealing plate located between the valve plate and the cylinder head. relates to a hermetic type compressor.

The utility model application CN no. relates to a compressor comprising a layered exhaust valve plate.

The aim of this invention is to increase the temperature of the refrigerant that is put into the cooling cycle. It is the realization of a compressor whose performance is increased by preventing

The compressor realized to achieve the purpose of this invention is is explained.

In a hermetic compressor, suction and discharge from the refrigeration cycle into the cylinder The refrigerant pressed into the cooling cycle is directed by a valve plate. Valve Intake - exhaust holes on the table that provide the inlet and outlet of the coolant and intake - exhaust valves are located. Valve in the inventive compressor The table has a three-layer structure and is located on the cylinder side and is made of steel. a first plate, a second made of steel located on the cylinder head side plate and a thermoplastic material such as polyamide placed between the first plate and the second plate. It contains an insulating plate made of insulating plastic material. find one in the plastic insulation plate, between the first plate and the second plate. preferably circular, which provides air entrapment and improvement of thermal insulation There are explanations in the form.

To achieve the aim of this invention, the compressor realized is in the attached figures. has been shown, from these figures; Figure 1 - is a section view of a compressor.

Figure 2 - Cylinder block, cylinder head and valve in the compressor body exploded view of the table.

Figure 3 - Perspective view of the three-layer valve plate.

Figure 4 - Exploded view of the three-layer valve plate.

Figure 5 - Front view of the plates that make up the valve plate layers.

Figure 6 - Perspective view of the insulation plate.

Figure 7 - is the schematic section view of the valve plate with its layers separated.

Figure 8 - Schematic section of the valve plate with layers assembled is the view.

Figure 9 - In one embodiment of the invention, the delaminated valve plate sematic section view.

Figure 10 - The valve with layers combined in one embodiment of the invention is the sematic section view of the table.

The parts in the figures are numbered one by one and the corresponding numbers are given below.

Compressor Casing Cylinder Piston cylinder head valve plate suction hole intake valve >°P°TJQF^FP°NE exhaust hole . exhaust valve 11. First plate 12. Second plate 13. Insulation plate 14. Openness . Unloading 16. Channel 17. ledge 18. Sealing gasket In refrigeration appliances, eg refrigerators, refrigerant in the refrigeration cycle Hermetic type compressor (1) suitable for the circulation of gas (refrigerant), a housing (2) that provides suction and discharge of the refrigerant. cylinder (3), a piston (4) working inside the cylinder (3), by the movement of the piston (4) a cylinder that directs the refrigerant that is sucked into and pumped into the cylinder (3). head (5), a valve plate (6) located between the cylinder (3) and the cylinder head (5), located on the valve plate (6) and during the suction movement of the piston (4). a suction port (7), which allows the refrigerant to enter the cylinder (3). a suction valve (8) that opens and closes its bore (6), the pressing action of the piston (4) An exhaust port that allows the refrigerant gas to be evacuated from the cylinder (3) during (exhaust port) (9) and an exhaust valve (10) that opens and closes the exhaust port (9) contains.

The valve plate (6) located in the compressor (1), which is the subject of the invention, has a three-layer structure. - a first plate made of metal (steel) material located on the side of the cylinder (3) - sandwiched with the first plate (11) located on the side of the cylinder head (5) a second plate (12) assembled and made of metal (steel) material, and - polyamide (PA : An insulating plate (13) made of thermally insulating plastic material such as polyamide contains.

In one embodiment of the invention, the valve plate (6) is located in the insulation plate (13), by creating air spaces between the first plate (11) and the second plate (12). at least in circular form, preferably in a circular form, which improves thermal insulation. it contains an opening (14) (Figure 5, Figure 6).

The insulation plate (13) also surrounds the exhaust valve (10) and is removed from the exhaust port (9). a drain (cut-out) that allows the passing refrigerant gas to the cylinder head (5). out) (15) (Figure 5, Figure 6).

In the assembly of the compressor (l), the first plate (11) is on the side of the cylinder (3) block and the second plate (12) is on the side of the cylinder head (5), with an insulating plate between them By placing (13), the first plate (11) and the second plate (12) are combined and the valve tray (6) is formed. Valve plate (6) Cylinder head (5) with cylinder (3) blog (Figure 1, Figure 2).

Intake and exhaust from the intake hole (7) in the valve plate (6) from the fuel plate (13) heat transfer between the refrigerant gas ejected from the hole (9) and the cylinder head (5). It prevents the overheating of the refrigerant gas. on the insulation plate (l3) The air gaps formed by the openings (14) improve thermal insulation.

At the corners of the first plate (11), the second plate (12) and the insulation plate (13), the cylinder Bolt holes that allow them to be mounted between the block (3) and the cylinder head (5) is located.

In one embodiment of the invention, the valve plate (6) is located on the first plate (11) and a channel (16) surrounding the insulation plate (13) and located in the second plate (12), surrounding the insulation plate (13) and on the first plate in the valve plate (6) assembly. (l 1) includes a rim (`17) that fits into the channel (16) (Fig. 9).

In another embodiment of the invention, the channel (16) is on the second plate (12) and the protrusion (17) is located on the first plate (l 1).

The channel (16) and protrusion (17) are arranged between the first plate (11) and the second plate (12). centralizing and unifying. Impermeability is improved, refrigerant gas leaks are prevented.

In another embodiment of the invention, the valve plate (6) is combined with the first plate (1 1) and the second placed in the channel (16) between the plate (12) and the bottom of the channel (16) and the protrusion A sealing gasket made of elastomer material sandwiched between (17) (18) includes, for example, an o-ring (Fig. 9).

In the two-piece valve plate (6) consisting of the first plate (11) and the second plate (12), The valve is placed by placing the insulation plate (13) between the first plate (11) and the second plate (12). The thermal insulation of the plate (6) is improved, the cylinder head (5) and the refrigerant gas overheating of the refrigerant gas that is absorbed and emitted by reducing the heat transfer between is avoided. With the effect of reduced heat transfer, especially the "absorbed" heating is prevented. The flow rate and volumetric efficiency of the “refrigerant gas” increase. Compressor (1) cooling capacity, hence the cooling efficiency coefficient (COP: coefficient of performance) value increases. The insulation plate (13) can only be inserted between It contacts the second plate (12) with the first plate (11) where it is compressed.

Attach the first plate (1 1) and the second plate to both sides of the insulation plate (13). (12) apply pressure to large-area surfaces. Insulation plate (13) cylinder it does not touch the head (5). Cylinder head (5) plastic insulation plate (13) Deformation of the insulation plate (13) as it does not apply direct pressure on it is prevented, the risk of refrigerant gas leakage is eliminated.

Claims (9)

REQUESTS l - A cylinder (3) that provides the suction and discharge of the refrigerant, located in a herinetic type housing (2) suitable for use in cooling devices, a piston (4) working inside the cylinder (3), that provides the direction of the refrigerant sucked and pressed into the cylinder (3). a cylinder head (5), a valve plate (6) located between the cylinder (3) and the cylinder head (5), an intake hole (7) located on the valve plate (6), an intake valve (8), a - a first plate made of metal material (l 1), located on the side of the cylinder (3), containing the exhaust port (9) and an exhaust valve (10), - the first plate (1 1), located on the side of the cylinder head (5) a three-layer valve plate (a) consisting of a second plate (12) made of metal material and sandwiched together with an insulating plate (13) placed between the first plate (11) and the second plate (12) and made of heat insulating plastic material. 6) characterized by a compressor (1). 2 - Claim, characterized by an insulating plate (13) made of polyamide (PA). 3 - Claim 1, characterized by the insulation plate (13) comprising at least one opening (14) that creates air spaces between the first plate (11) and the second plate (12), or 4 - A compressor (1) as in Claim 3, characterized by an insulating plate (13) containing openings (14) in circular form. 5 - A compressor (1) as in any one of the above claims, characterized by an insulating plate (13) containing a discharge (15) surrounding the exhaust valve (10) and allowing the passage of the refrigerant gas passing through the exhaust hole (9) to the cylinder head (5). 6 - Valve plate (with a groove (16) in the first plate (1 1) surrounding the insulation plate (13) and a protrusion (17) in the second plate (12) that fits into the channel (16) in the first plate (11) A compressor (1) as in any one of the above claims, characterized by 6) . 7 - A compressor (1 ) as in any one of Claims 1 to 5, characterized by the valve plate (6) containing the channel (16) located on the second plate (12) and the protrusion (17) located on the first plate (11). ). 8 - Valve plate (6), characterized by an elastomeric sealing gasket (18) inserted into the channel (16) between the first plate (11) and the second plate (12) and compressed between the bottom of the channel (16) and the protrusion (17). A compressor (1) as in claim 6 or 7. 9 - A cooling device characterized by a compressor (1) comprising a valve plate (6) as in any one of the above claims.