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Patent Searching and Data


Title:
VALVE FOR REFRIGERANT EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/1999/050579
Kind Code:
A1
Abstract:
An improvement in a valve for refrigerant equipment, such as an ir-conditioner, capable of preventing the leakage of a fluid when the valve is closed and minimizing the flow resistance of the fluid when the valve is opened. The valve is provided with a valve body (2) comprising a tubular member, and a switching valve (3). The valve body (2) is provided with a passage (21) in which a refrigerant flows, a tubular valve holding portion (4), and an auxiliary port for use in removing the air from the interior of a pipe of refrigerant equipment after the valve has been connected to the pipe. The flow passage (21) is provided with a first flow passage (22) and a second flow passage (23) linearly continuing from the first passage (22). The axis of the valve holding portion (4) extends at an angle of substantially 45° to that of the flow passage (21). The switching valve (3) is provided with a columnar spindle (31) constituting a valve disc and a valve seat (7). The spindle (31) has a closing portion (34) at a free end section thereof, and is held in the valve holding portion (4) so that the spindle can be axially moved, whereby the closing portion (34) moves into and retracts from the portion of the flow passage (21) which is between the first and second flow passage (22, 23). The valve seat (7) is formed on a projection (71) extending into the flow passage (21). When the closing portion (34) engages this valve seat (7) as a result of a moved spindle (31), the flow passage (21) is closed.

Inventors:
Mori, Hiroyuki (Kabushiki Kaisha Matsui Seisakusho, 1-23 Nagata 4-chome, Joto-k, Osaka-shi Osaka, 536-0022, JP)
Heike, Nobuo (Kabushiki Kaisha Matsui Seisakusho, 1-23 Nagata 4-chome, Joto-k, Osaka-shi Osaka, 536-0022, JP)
Sakamoto, Kazuo (Kabushiki Kaisha Matsui Seisakusho, 1-23 Nagata 4-chome, Joto-k, Osaka-shi Osaka, 536-0022, JP)
Application Number:
PCT/JP1998/001456
Publication Date:
October 07, 1999
Filing Date:
March 27, 1998
Export Citation:
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Assignee:
KABUSHIKI KAISHA MATSUI SEISAKUSHO (1-23, Nagata 4-chome Joto-k, Osaka-shi Osaka, 536-0022, JP)
Mori, Hiroyuki (Kabushiki Kaisha Matsui Seisakusho, 1-23 Nagata 4-chome, Joto-k, Osaka-shi Osaka, 536-0022, JP)
Heike, Nobuo (Kabushiki Kaisha Matsui Seisakusho, 1-23 Nagata 4-chome, Joto-k, Osaka-shi Osaka, 536-0022, JP)
Sakamoto, Kazuo (Kabushiki Kaisha Matsui Seisakusho, 1-23 Nagata 4-chome, Joto-k, Osaka-shi Osaka, 536-0022, JP)
International Classes:
F16K1/10; F16K41/04; F25B41/00; F25B41/04; (IPC1-7): F16K1/10
Foreign References:
JPS4861420U
JPS4522633Y1
JPS4726016Y1
JPS4515009Y1
US4585210A
US4087892A
EP0136567A2
Attorney, Agent or Firm:
Samejima, Takenobu (Daika Kosan Building 2F, 7-3 Kitahorie 1-chome, Nishi-k, Osaka-shi Osaka, 550-0014, JP)
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