Title:
INTERMITTENT AIR GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/063499
Kind Code:
A1
Abstract:
[Problem] To provide an intermittent air generation device excelling in applicability using a simple structure, without the need for a pilot pressure-type on-off valve using a complicated structure. [Solution] A passage switching valve (20) with a three-port two-position pilot valve, which connects an inlet port (22) and an outlet port (24) and closes an exhaust port (26) when the pressure in a pilot chamber (84) is less than a prescribed value, and which closes the inlet port (22) and connects the outlet port (24) and the exhaust port (26) when the pressure in the pilot chamber (84) is equal to or greater than the prescribed value, is used. A throttle element (60) is provided between a first pilot passage (56A) and a second pilot passage (56B) which connect the pilot chamber (84) of the passage switching valve (20) to an air pressure source (10). The second pilot passage (56B) on the downstream side of the pilot chamber (84) or the throttle element (60) is connected to the exhaust port (26) of the passage switching valve (20) by an exhaust passage (58).
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Inventors:
ISHIGE KOUJI (JP)
KAMIMA TAKESHI (JP)
KAMIMA TAKESHI (JP)
Application Number:
PCT/JP2015/005202
Publication Date:
April 28, 2016
Filing Date:
October 14, 2015
Export Citation:
Assignee:
KURODA PNEUMATICS LTD (JP)
International Classes:
F15B21/12; F15B11/06; F16K11/07; F16K31/122
Domestic Patent References:
| WO2005121562A2 | 2005-12-22 |
Foreign References:
| JPS61236907A | 1986-10-22 | |||
| JPH01141208A | 1989-06-02 | |||
| JP2007118953A | 2007-05-17 |
Attorney, Agent or Firm:
OSHIMA & PARTNERS (JP)
Patent business corporation Oshima patent firm (JP)
Patent business corporation Oshima patent firm (JP)
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