Back to results
US 12,221,960 B2Granted
Scroll compressor including a valve plate having a surface pressure enhancement portion protruding toward an injection valve
AssigneeHanon Systems
InventorsKwang Jin Kim, Kyung Jae Lee, Jong Hyun Jeon, Soo Cheol Jeong
Life of this patent
Estimating the term…
Abstract
A scroll compressor including a housing, a motor in the housing, an orbiting scroll, and a fixed scroll. An injection valve assembly is provided between the fixed scroll and the housing and further includes a cover plate, a valve plate, a gasket retainer, and an injection valve. The compressor capable of increasing a surface pressure at a position at which the injection valve of the injection valve assembly needs to be supported, and preventing deformation of the gasket retainer by reducing a bead height of the gasket retainer.
Claims13
A scroll compressor comprising:
- a housing;
- a motor provided in the housing;
- a rotary shaft configured to be rotated by the motor;
- an orbiting scroll configured to orbit in conjunction with the rotary shaft;
- and
- a fixed scroll configured to define a compression chamber together with the orbiting scroll, wherein the housing further comprises a rear housing configured to define a discharge chamber that accommodates a refrigerant discharged from the compression chamber, wherein an injection valve assembly is provided between the fixed scroll and the rear housing, defines, in the rear housing, an introduction chamber into which the refrigerant is introduced from outside of the housing, and guides the refrigerant in the introduction chamber to the compression chamber,
- wherein the injection valve assembly further comprises:
- a cover plate coupled to the rear housing and having an inlet port into which the refrigerant in the introduction chamber is introduced;
- a valve plate coupled to the cover plate and having an outlet port from which the refrigerant introduced through the inlet port is discharged;
- a gasket retainer interposed between the cover plate and the valve plate and configured to prevent a leak of the refrigerant;
- and
- an injection valve interposed between the cover plate and the gasket retainer and configured to open or close the inlet port, wherein a base surface in which an inclined space is recessed is formed on a surface of the valve plate, which faces the gasket retainer, wherein the valve plate has a surface pressure enhancement portion protruding toward the injection valve from the base surface, wherein the base surface is formed lower than the surface pressure enhancement portion, and wherein the surface pressure enhancement portion is provided on the surface of the valve plate, which faces the gasket retainer, and the surface pressure enhancement portion at least partially supports the gasket retainer and the injection valve.
9 more elements
A scroll compressor comprising:
- a housing;
- a motor provided in the housing;
- a rotary shaft configured to be rotated by the motor;
- an orbiting scroll configured to orbit in conjunction with the rotary shaft;
- and
- a fixed scroll configured to define a compression chamber together with the orbiting scroll, wherein the housing further comprises a rear housing configured to define a discharge chamber that accommodates a refrigerant discharged from the compression chamber, wherein an injection valve assembly is provided between the fixed scroll and the rear housing, defines, in the rear housing, an introduction chamber into which the refrigerant is introduced from outside of the housing, and guides the refrigerant in the introduction chamber to the compression chamber,
- wherein the injection valve assembly further comprises:
- a cover plate coupled to the rear housing and having an inlet port into which the refrigerant in the introduction chamber is introduced;
- a valve plate coupled to the cover plate and having an outlet port from which the refrigerant introduced through the inlet port is discharged;
- a gasket retainer interposed between the cover plate and the valve plate and configured to prevent a leak of the refrigerant;
- and
- an injection valve interposed between the cover plate and the gasket retainer and configured to open or close the inlet port,
- wherein the valve plate has a surface pressure enhancement portion protruding toward the injection valve, and wherein the valve plate further comprises a positioning groove into which a positioning pin is inserted, and the surface pressure enhancement portion has an avoidance portion recessed to prevent interference with the positioning groove.
10 more elements
Dependencies are inferred from the claim text.