| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To eliminate air binding by lifting a valve disk by a small operation force of a bimetal ring. <P>SOLUTION: A conical inclined part 12 is formed at the external periphery of the outer ring valve seat 7, and an upper-side flat part 15 and a lower-side flat part 16 are formed at the upper end and the lower end of the inclined part 12, respectively, a bimetal ring 13 having an end is arranged, and an interposing ring 14 whose upper face is obliquely formed is arranged between the bimetal 13 and the valve disk 11. At a low temperature, the bimetal ring 13 is contraction-closed and upwardly moves the inclined part 12, oscillates and lifts the valve disk 11 with one point at the highest side of the interposing ring 14 as a working point, seat-separates and valve-opens it from the inner and outer valve seats 6, 7, and places it on the upper-side flat part 15. Since the valve disk 11 is oscillated and lifted, the air binding can be eliminated by the small operation force of the bimetal ring 13. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
