| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydraulic control circuit of a continuously variable transmission, which enables a rapid start of the continuously variable transmission even in a cold district. SOLUTION: The hydraulic control circuit 10 controls a hydraulic servo mechanism 3 of the continuously variable transmission 1. The hydraulic control circuit 10 includes a warm up pipe 20 installed by a low fuse valve 21 to warm up the servo valve 3a by spraying the oil raised in temperature to the servo valve 3a of the hydraulic servo mechanism 3. Thereby, the servo valve 3a can be rapidly warmed up, which enables the rapid start of the continuously variable transmission 1 in the cold district. COPYRIGHT: (C)2007,JPO&INPIT |
