Title:
THERMOSTAT VALVE
Document Type and Number:
WIPO Patent Application WO/2015/198674
Kind Code:
A1
Abstract:
[Problem] To provide a thermostat valve in which the amount of water leakage while the valve is closed is reduced to an infinitesimally small level and which is configured using a resin molding process to make the entire thermostat valve compact and lightweight and to reduce the number of parts.
[Solution] A thermostat valve is provided with: a body housing (12) having an annular body section and a frame section which is provided to the other end surface side of the body section with legs therebetween, the body housing (12) being molded in one piece having a circular cylindrical shape from a synthetic resin material; a disk-shaped valve body (20) disposed on one end surface side of the body housing (12) so as to be capable of moving forward and backward in the axial direction; a spring receiver (24) for holding the end of a pressing spring means (22) away from the valve body and engaged with and held by the front end hook of an engagement arm (30) extended from the body housing; and a thermo-element (40) held by and affixed to an element guide (12c) provided on the frame section of the body housing, the thermo-element (40) operating the valve body in the valve opening direction according to fluid temperature. An annular stepped section having a top section with a predetermined width is provided at a portion of said end surface of the body housing, the portion being located close to an opening peripheral edge section, the annular stepped section serving as a valve seat section (16).
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Inventors:
SHIMOMURA KAZUHITO (JP)
Application Number:
PCT/JP2015/060343
Publication Date:
December 30, 2015
Filing Date:
April 01, 2015
Export Citation:
Assignee:
NIPPON THERMOSTAT KK (JP)
International Classes:
F01P7/16; F16K31/68
Foreign References:
| JPH06229240A | 1994-08-16 | |||
| JP2008157194A | 2008-07-10 | |||
| JP2003193839A | 2003-07-09 | |||
| JPS6087336U | 1985-06-15 |
Other References:
See also references of EP 3163047A4
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