Compressor
AssigneeSanden Corporation
InventorShinji Nakamura
Life of this patent
Estimating the term…
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.
Claims1
A compressor that includes a cylinder, the cylinder comprising:
- a refrigerant inlet and a refrigerant outlet at one end,
- a cylinder head comprising a refrigerant suction chamber in fluid communication with a refrigerant inlet and a refrigerant discharge chamber in fluid communication with a refrigerant outlet,
- a piston reciprocating in the cylinder,
- an suction valve provided in the refrigerant inlet,
- a discharge valve provided in the refrigerant outlet;
- and
- an opening regulating valve positioned in a refrigerant channel and selectively in fluid communication with one of the refrigerant suction chamber or the refrigerant discharge chamber, the opening regulating valve comprising:
- an elastically deformable spiral member;
- and
- a blocking member configured to block an end side of the spiral member,
- wherein diameters of the spiral member are formed uniformly from the end side to an opposite end side, and wherein the blocking member comprises a tubular member and an opening formed therethrough in the center of the blocking member, configured to allow a refrigerant to flow, and is configured to regulate 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.