Capacity control drive

Details Capacity control drive Capacity control drive

2006-07-18

2006-07-18

Look, Edward K. (Department: 3751)

Valves and valve actuation

Electrically actuated valve

Balanced valve

C251S129150, C417S222200

Reexamination Certificate

active

07077380

ABSTRACT:
A capacity control valve is inserted in a flow path connecting a discharge chamber and a crank chamber of a variable capacity compressor and provided with a valve unit and a drive unit. The valve unit has a valve element for opening/closing the flow path or a valve passage of the valve unit. The drive unit has a movable core or plunger for driving the valve element and a communicating path that is formed in the plunger and connects chambers located in both sides of the plunger.

REFERENCES:
patent: 3471119 (1969-10-01), Risk
patent: 5890876 (1999-04-01), Suito et al.
patent: 6213445 (2001-04-01), Sato et al.
patent: 11218078 (1999-08-01), None

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