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US 6,537,043 B1Granted
Compressor discharge valve having a contoured body with a uniform thickness
AssigneeCopeland Corporation
InventorJianxiong Chen
Life of this patent
Estimating the term…
Abstract
A discharge valve is provided for implementation between a discharge pressure zone and a discharge chamber. The discharge valve is operable between an open position for enabling fluid flow between the discharge pressure zone and the discharge chamber and a closed position for prohibiting fluid flow between the discharge pressure zone and the discharge chamber. The discharge valve includes a housing defining a cavity and having a flow aperture therethrough. A valve disc is slidably disposed within the housing and is operable for defining the open and closed positions of the discharge valve. The valve disc includes a contoured body for reducing stresses experienced within the valve disc and improving fluid flow therearound.
Claims33
A scroll compressor comprising:
- a shell defining a discharge chamber;
- a first scroll member disposed within said shell, said first scroll member having a first spiral wrap projecting outwardly from an end plate;
- a second scroll member disposed within said shell, said second scroll member having a second spiral wrap projecting outwardly from an end plate, said second spiral wrap intermeshed with said first spiral wrap;
- a drive member for causing said scroll members to orbit relative to one another whereby said spiral wraps create pockets of progressively changing volume between a suction pressure zone and a discharge pressure zone;
- a discharge passage providing fluid communication between said discharge pressure zone and said discharge chamber;
- and
- a discharge valve assembly disposed within said discharge passage, said discharge valve assembly comprising;
- a housing disposed within said discharge passage, said housing defining a plurality of flow orifices disposed circumferentially around a top wall of said housing and a flat valve seat around a bottom wall of said housing;
- an aperture free discharge valve disc defining an outer flat periphery, said discharge valve disc being movable between a first position where said outer flat periphery engages said flat valve seat to prohibit fluid flow through said discharge passage and a second position which allows fluid flow through said discharge passage, said fluid flow through said discharge passage flowing around said outer periphery of said discharge valve disc and through said plurality of flow orifices, said discharge valve disc having a contoured body having a uniform thickness for reducing a stress load experienced by said discharge valve disc and a biasing member engaging said outer flat periphery of said discharge valve disc to urge said discharge valve disc toward said first position.
6 more elements
A rotary compressor comprising:
- a shell defining a discharge chamber;
- a housing disposed within said shell, said housing defining a chamber;
- a roller disposed within said chamber;
- a vane disposed between said housing and said roller, said vane dividing said chamber into a suction area and a discharge area;
- a discharge passage providing fluid communication between said discharge area and said chamber;
- a drive member for causing said roller to rotate within said chamber whereby fluid in said suction area progressively changes volume as it is moved into said discharge area;
- and
- a discharge valve assembly disposed within said discharge passage, said discharge valve assembly comprising;
- a housing disposed within said discharge passage, said housing defining a plurality of flow orifices disposed circumferentially around a top wall of said housing and a flat valve seat around a bottom wall of said housing;
- an aperture free discharge valve disc defining an outer flat periphery, said discharge valve disc being movable between a first position where said outer flat periphery engages said flat valve seat to prohibit fluid flow through said discharge passage and a second position which allows fluid flow through said discharge passage, said fluid flow through said discharge passage flowing around said outer periphery of said discharge valve disc and through said plurality of flow orifices, said discharge valve disc having a contoured body having a uniform thickness for reducing a stress load experienced by said discharge valve disc and a biasing member engaging said outer flat periphery of said discharge valve disc to urge said discharge valve disc toward said first position.
7 more elements
A compressor comprising:
- a discharge chamber;
- a discharge pressure zone;
- a discharge passage interconnecting said discharge chamber and said discharge pressure zone for fluid communication therebetween;
- and
- a discharge valve assembly disposed within said discharge passage, said discharge valve assembly comprising;
- a housing disposed within said discharge passage, said housing defining a plurality of flow orifices disposed circumferentially around a top wall of said housing and a flat valve seat around a bottom wall of said housing;
- an aperture free discharge valve disc defining an outer flat periphery, said discharge valve disc being movable between a first position where said outer flat periphery engages said flat valve seat to prohibit fluid flow through said discharge passage and a second position which allows fluid flow through said discharge passage, said fluid flow through said discharge passage flowing around said outer periphery of said discharge valve disc and through said plurality of flow orifices, said discharge valve disc having a contoured body having a uniform thickness for reducing a stress load experienced by said discharge valve disc and a biasing member engaging said outer flat periphery of said discharge valve disc to urge said discharge valve disc toward said first position.
4 more elements
Dependencies are inferred from the claim text.