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Patent Searching and Data


Title:
SWITCHABLE FLOW CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2017/217112
Kind Code:
A1
Abstract:
A valve chamber (301a), and opening/closing flow holes (301b, 301c, 305a, 306a) and open flow holes (301d, 307a) which open into the valve chamber and through which a fluid flows are formed in a valve body (30) of a switchable flow control valve. A primary valve (32) opens and closes the opening/closing flow holes by rotating about a single axial center. A secondary valve (34) is disposed opposite to the opening/closing flow holes, with the primary valve interposed therebetween, and rotates about the single axial center. Seals (401, 421) are compressed between the valve body and the primary valve, and seal the peripheries of the open ends of the opening/closing flow holes in the valve chamber. As the primary valve rotates, the primary valve causes a first end (321b) of a primary valve through-hole (321a) formed in the primary valve to face the open ends of the opening/closing flow holes so as to open the opening/closing flow holes. The secondary valve at least partially covers the other end (321c) of the primary valve through-hole as the secondary valve rotates, and increases or decreases the area covering the other end of the primary valve through-hole by rotating about the single axial center.

Inventors:
FURUKOSHI Takuro (Showa-cho Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2017/015853
Publication Date:
December 21, 2017
Filing Date:
April 20, 2017
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
F16K11/12; F16K5/10
Foreign References:
JPS58174766A1983-10-13
JPS6037471A1985-02-26
Attorney, Agent or Firm:
YOU-I PATENT FIRM (Nagoya Nishiki City Bldg. 4F 1-6-5, Nishiki Naka-ku, Nagoya-sh, Aichi 03, 〒4600003, JP)
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