Displacement control valve of variable displacement compressor

Details Displacement control valve of variable displacement compressor Displacement control valve of variable displacement compressor

2006-06-07

2010-10-05

Kramer, Devon C (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

C417S213000, C417S216000

Reexamination Certificate

active

07806666

ABSTRACT:
A displacement control valve (32) is connected to a variable displacement compressor. An open passage (53) in which a refrigerant gas flows is formed within a rod (31) and a valve body (30) of the displacement control valve (32). Further, an inner circumferential surface of a valve chamber (36) is formed as a guide portion (40) for moving the valve body (30) along an axis (L1) of the valve chamber (36). A valve portion (30a) of the valve body (30) is formed in a circular arc cross sectional shape along a surface of a sphere (K) in which an intermediate point of a length of the guide portion (40) along the axis (L1) of the valve chamber (36) is set to a center (N) on the axis (L1), and a distance from the center (N) to a contact point between a valve seat (36a) and the valve portion (30a) is set to a radius (r).

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Office Action for corresponding JP Application No. 2005-168707, dated Jan. 5, 2010.
Office Action for corresponding JP Application No. 2005-168707, dated Sep. 15, 2009.

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