Control valve for compressor
OwnerHenry C. CHUinventor
Life of this patent
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Abstract
A compressor includes a cylinder housing having a number of pistons, a control chamber communicating with piston casings, a suction chamber and a discharge chamber communicating with the piston casings, a control valve includes a receptacle engaged in the cylinder housing, a valve member engaged in the receptacle for controlling the pressurized air to flow from the discharge chamber into the control chamber of the cylinder housing, and a valve element for controlling a bypass of the pressurized air through the receptacle. A bellow device is connected to actuate the sliding member internally, and a sliding member is slidably engaged in the control space of the receptacle, and to operate the valve element externally with a solenoid device.
Claims12
A control valve for compressor, said compressor comprising:
- a cylinder housing including a number of piston casings provided in said cylinder housing, said cylinder housing including a control chamber formed therein and communicating with said piston casings of said cylinder housing, a suction chamber and a discharge chamber formed in said cylinder housing and communicating with said piston casings, and arranged for allowing an air to be drawn from said suction chamber into said piston casings of said cylinder housing, and for allowing a pressurized air to be discharged into said discharge chamber of said cylinder housing selectively, a compartment formed in said cylinder housing, a channel formed in said cylinder housing and communicating with said compartment and said suction chamber of said cylinder housing, a conduit formed in said cylinder housing and communicating with said compartment and said discharge chamber of said cylinder housing, a pathway formed in said cylinder housing and communicating with said compartment and said control chamber of said cylinder housing,
- a plurality of pistons slidably received and engaged in said piston casings of said cylinder housing respectively,
- a swash plate rotatably received and engaged in said control chamber of said cylinder housing with a spindle and adjustable relative to said spindle, and engaged with said pistons for changing and determining a moving stroke of said pistons, and
- a control valve including a receptacle engaged in said compartment of said cylinder housing, wherein:
- said control valve includes a valve member engaged in said receptacle for controlling the pressurized air to flow from said discharge chamber and said conduit of said cylinder housing through said receptacle and into said pathway and said control chamber of said cylinder housing, and a valve element for controlling a bypass of the pressurized air through said receptacle.
Dependencies are inferred from the claim text.