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US 7,618,242 B2Granted
Hermetic sealed compressor
AssigneeDaikin Industries, Ltd.
InventorsMasahide Higuchi, Eiji Kumakura, Takashi Hirouchi
Life of this patent
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Abstract
A front head of a cylinder and a mounting plate are tightly fixed to each other. The mounting plate is welded to a casing. The mounting plate is made of steel containing 2.0% or less of carbon therein. Furthermore, a stator core of a compressor motor is welded to the casing. A hermetic sealed compressor is configured in a high-pressure domed type. A supercritical fluid is used as an operating fluid.
Claims9
A hermetic sealed compressor comprising:
- a casing;
- and
- a compressing element configured to compress an operating fluid and accommodated inside the casing, the compressing element including a cylinder forming a bushing hole, a swing piston swinging in the cylinder, and a bushing inserted in the bushing hole and supporting the swing piston,
- the compressing element including a main body, a cover forming the upper surface of a compression chamber and a bottom forming the lower surface of the compression chamber,
- the compressing element being fixed to a fixing member which is made of steel containing 2.0% or less of carbon therein and welded to the casing,
- the fixing member being configured independently of the compressing element and the casing,
- the fixing member being welded to the casing while at least either of the cover or the bottom of the compressing element is tightly fixed to the fixing member, and
- the fixing member forming a bushing penetrating hole that communicates with the bushing hole and allows a lubricant in the casing to flow through the bushing hole.
5 more elements
Dependencies are inferred from the claim text.