THERMOSTAT DEVICE AND MANUFACTURING METHOD OF THERMOSTAT DEVICE

• Main Authors: NUMATA MASAYUKI, NISHIMURA TETSUYA
• Format: Patent
• Language: English; Japanese
• Published: 09.08.2022
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

To provide a thermostat device which can be suppressed in size enlargement, is favorable in the assembling performance of a seal member, and can suppress a cost, and its manufacturing method.SOLUTION: A thermostat device comprises: a housing 1 which is attached to an attachment hole of a mating member, and in which a flow passage of a cooling liquid is formed at its inside; a seal member 25 which liquid-tightly seals a clearance between the mating member and the housing 1; a thermoelement 17 which is telescopically operated according to a temperature of the cooling liquid; a valve body 15 which opens and closes the flow passage by a telescopic operation of the thermoelement 17; and a coil spring 16 which energizes the valve body 15 to a closing direction. An irregular-shaped annular groove 24 into which the seal member 25 is fit is formed at the housing 1, and the seal member 25 is formed into a true circle shape in a state that the seal member has a natural length.SELECTED DRAWING: Figure 2 【課題】サーモスタット装置の大型化を抑制できるとともに、シール部材の組付性が良好で、コストを抑制できるサーモスタット装置及びその製造方法を提供する。【解決手段】相手方部材の取付孔に取り付けられて、内側に冷却液の流路が形成されるハウジング１と、相手方部材とハウジング１との間を液密にシールするシール部材２５と、冷却液の温度に応じて伸縮作動するサーモエレメント１７と、サーモエレメント１７の伸縮作動によって流路を開閉する弁体１５と、弁体１５を閉じ方向へ付勢するコイルスプリング１６とを備え、ハウジング１には、シール部材２５が嵌る異形の環状溝２４が形成され、シール２５部材は、自然長となった状態で、真円形状である。【選択図】図２