| 摘要 |
<P>PROBLEM TO BE SOLVED: To quickly raise the temperature inside a combustion chamber when starting an internal combustion engine or in low-load operation thereof, and to prevent a valve from an excessively high temperature in high-load operation of the internal combustion engine. Ž<P>SOLUTION: A refrigerant 50 formed from a low-melting point material is sealed in a hollow hole 3. In the hollow hole 3, a temperature sensitive opening/closing valve device 40 for opening/closing a communication opening communicated with an upper chamber 3a and a lower chamber 3b by opening/closing in response to the temperature inside the hollow hole 3 is provided. The temperature sensitive opening/closing valve device 40 opens in a process, in which the temperature inside the hollow hole 3 rises, and closes in a process, in which the temperature inside the hollow hole 3 lowers. A valve opening set temperature and a valve closing set temperature of the temperature sensitive opening/closing valve device 40 are respectively set at a temperature higher than a melting point of the low-melting point material within a range of a temperature change inside the hollow hole 3. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
