Title:
FLOW RATE CHARACTERISTIC ADJUSTMENT MECHANISM OF SOLENOID PROPORTIONAL VALVE AND FLOW RATE CHARACTERISTIC ADJUSTMENT METHOD USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2005/103541
Kind Code:
A1
Abstract:
A flow rate characteristic adjustment mechanism of a solenoid proportional valve capable of easily adjusting the flow rate characteristics of the solenoid proportional valve even after a product is assembled and a flow rate characteristic adjustment method using the mechanism. The solenoid proportional valve (1A) comprises a coil bobbin (16) around which a coil (17) is wrapped, a third core (15) fixedly fitted to the coil bobbin (16), a body (2) having an inlet flow passage (3) and an outlet flow passage (4), a valve seat (6) allowing the inlet flow passage (3) to communicate with the outlet flow passage (4), a valve seat (12) opening/closing the valve seat (6), a plunger (10) formed integrally with the valve seat (12), a plate spring (8) energizing the plunger (10) in the direction of the valve seat (6), a first core (9) interposed between the coil bobbin (16) and the body (2), and a bonnet (19) detachably put on the coil bobbin (16). The third core (15), the first core (9), and the bonnet (19) surround the periphery of the coil (17) to form a magnetic circuit. A fixed screw (22) is rotated to move the bonnet (19) in the axial direction so as to change the magnetic circuit.
Inventors:
ITOH KAZUTOSHI (JP)
WATANABE MASAYUKI (JP)
NISHIMURA YASUNORI (JP)
KOSAKA AKIKO (JP)
NIWA TSUNEO (JP)
NISHIDA SHIGENOBU (JP)
WATANABE MASAYUKI (JP)
NISHIMURA YASUNORI (JP)
KOSAKA AKIKO (JP)
NIWA TSUNEO (JP)
NISHIDA SHIGENOBU (JP)
Application Number:
PCT/JP2005/007399
Publication Date:
November 03, 2005
Filing Date:
April 18, 2005
Export Citation:
Assignee:
CKD CORP (JP)
ITOH KAZUTOSHI (JP)
WATANABE MASAYUKI (JP)
NISHIMURA YASUNORI (JP)
KOSAKA AKIKO (JP)
NIWA TSUNEO (JP)
NISHIDA SHIGENOBU (JP)
ITOH KAZUTOSHI (JP)
WATANABE MASAYUKI (JP)
NISHIMURA YASUNORI (JP)
KOSAKA AKIKO (JP)
NIWA TSUNEO (JP)
NISHIDA SHIGENOBU (JP)
International Classes:
F16K31/06; (IPC1-7): F16K31/06
Foreign References:
| JP2002357280A | 2002-12-13 | |||
| JPH029404U | 1990-01-22 | |||
| JPH0559070U | 1993-08-03 | |||
| JPH07280123A | 1995-10-27 | |||
| JPS61186873U | 1986-11-21 |
Attorney, Agent or Firm:
Cosmos, Patent Office (Nagoya Center Building 2-22, Nishiki 2-chome,
Naka-ku, Nagoya-sh, Aichi 03, JP)
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