Valve for scroll compressor
AssigneeDanfoss Maneurop S.A.
InventorDavid Genevois
Life of this patent
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Abstract
In a valve used in connection with a scroll compressor, a central profiled body is designed to protrude in an opening for outlet of gas from a compression stage, a outer axisymmetric surface of which is concave, of generally toroidal shape, and is terminated by a tip, the outlet opening of the compression stage being delimited by a curved surface forming, in the downstream direction, a widening providing, with the central profiled body, a cross section for the passage of the gas which is substantially constant, closing means being provided in order to seal this passage in the closed position of the valve.
Claims7
A valve for a scroll compressor comprising:
- a low pressure compartment;
- a high pressure compartment;
- a compression stage having an outlet, said low and high pressure compartments being separated by said compression stage;
- a delivery valve coupled to said outlet and movable between an open position, and a closed position wherein gas is prevented from passing from the high pressure compartment to the compression stage;
- a central profiled body extending into an opening in the compression stage for allowing gas to escape therefrom, the central profiled body comprising an outer, concave, axisymmetric surface, the axisymmetric surface being generally toroidal and terminating in a tip;
- the outlet of the compression stage being delimited by a curved surface forming a widened portion in a downstream direction;
- the widened portion and the central profiled body cooperating to define a substantially constant cross-sectional area for the passage of gas;
- and
- closing means for sealing the cross-sectional area when the valve is in the closed position.
Dependencies are inferred from the claim text.