| 摘要 |
A thermally responsive valve composed of a first fluid passage whose inlet is connected to a carburetor advance port and whose outlet communicates with a chamber; a second fluid passage whose inlet communicates with the chamber and whose outlet is connected to an airtight chamber of a control valve; a bimetal in the chamber cooperating with a sealing member to close the outlet of the first passage when the temperature of the bimetal exceeds a predetermined value; and a one-way check valve disposed in second fluid passage to permit fluid flow from the first passage to the second passage. When the valve temperature exceeds a predetermined value, the bimetal will snap over to communicate the first and second passages so that the vacuum from the carburetor advance port can act upon the control valve.
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