Expansion valve

Refrigeration – Muffler or sound dampener

Reexamination Certificate

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Details

C062S527000

Reexamination Certificate

active

07373788

ABSTRACT:
An expansion valve includes a valve body having a valve body hole, a first passage, a bottomed valve chamber, a second passage, a third passage and a guide member disposed in the valve body hole between the first passage and the third passage. The valve body hole has a first valve body hole portion and a second valve body hole portion of different diameters forming a valve body step between the second passage and the first passage. The guide has a first guide portion and a second guide portion of different diameters forming a guide portion step. The guide is sized to be slidably received by the valve body hole in a close-fitting relationship with the first valve body hole portion receiving the first guide portion, the second valve body hole portion receiving the second guide portion and the valve body step and the guide portion step contacting each other.

REFERENCES:
patent: 2573522 (1951-10-01), Watt
patent: 2832573 (1958-04-01), Rees
patent: 3738120 (1973-06-01), Beatenbough
patent: 5924299 (1999-07-01), Karl
patent: 5943871 (1999-08-01), Ito et al.
patent: 6012301 (2000-01-01), Fujimoto et al.
patent: 6062484 (2000-05-01), Eybergen
patent: 6354509 (2002-03-01), Fukuda et al.
patent: 6868684 (2005-03-01), Law et al.
patent: 6892953 (2005-05-01), Matsuda et al.
patent: 0 691 517 (1996-01-01), None
patent: 0 959 310 (1999-11-01), None
patent: 1 384 962 (2004-01-01), None
patent: 1 416 236 (2004-05-01), None
patent: 5-157405 (1993-06-01), None
patent: 2002-310538 (2002-10-01), None
European Search Report, Application No. 05009181.8-2422 PCT/, dated Sep. 6, 2005.

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