Compressor
AssigneeSanden Corporation
InventorShinji Nakamura
Life of this patent
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Abstract
The invention provides a compressor that can reduce occurrence of vibration and noise due to self-induced vibration of an suction valve at the time of a low flow rate surely with an inexpensive structure. In the compressor according to the invention, an opening regulating valve 40 provided in a refrigerant suction channel 13c to a cylinder 11a is formed by an elastically deformable spiral member 41, and intervals of spiral portions 41a of the spiral member 41 are changed according to a flow rate of a refrigerant, whereby an opening of the channel 13c is regulated. Thus, it is possible to reduce occurrence of vibration and noise due to self-induced vibration of an suction valve 14c at the time of a low flow rate surely, and it is possible to simplify a structure of the opening regulating valve 40.
Claims4
A compressor that includes a cylinder comprising a refrigerant inlet and a refrigerant outlet at one end, a cylinder head comprising a refrigerant suction chamber communicating with a refrigerant inlet and a refrigerant discharge chamber communicating with a refrigerant outlet, a piston reciprocating in the cylinder, and an suction valve provided in the refrigerant inlet, and a discharge valve provided in the refrigerant outlet, the refrigerant inlet and the refrigerant outlet being opened and closed by deformation of the suction valve and the discharge valve characterized by comprising an opening regulating valve that is provided in a refrigerant channel communicating with the refrigerant suction chamber or the refrigerant discharge chamber, consists of an elastically deformable spiral member fixed in the channel at one end thereof, and regulates an opening of the channel by changing intervals among spiral portions of the spiral member according to a flow rate of the refrigerant.
Dependencies are inferred from the claim text.