Title:
油温制御装置
Document Type and Number:
Japanese Patent JP4491991
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an oil temperature control device for a transmission capable of restricting the deterioration of the oil supplied to a machine to be lubricated due to a temperature rise of the oil from the predetermined value. SOLUTION: This oil temperature control device is provided with an engine cooling system provided with an electronic thermo-valve 7 (7A) for variously changing the flow quantity passing through a radiator 4 and the flow quantity passing through a bypass passage 6 and a heat exchanger 10 for exchanging the heat between the engine cooling water and the oil of the machine to be lubricated. Temperature of the oil of the machine to be lubricated is considered as one of the control condition of the electronic thermo-valve 7 (7A), and when the temperature of the oil of the machine to be lubricated exceeds the predetermined value, the electronic thermo-valve 7 (7A) is controlled to increase the radiator side flow quantity, and the temperature of the engine cooling water passing through the heat exchanger 10 is thereby lowered. In place of the electronic thermo-valve 7A, a thermo-valve 7B with a throttle valve 12 for a heater circuit, or a flow control valve 7C, or a pressure control valve 14 for an oil circuit for the machine to be lubricated can be used.
Inventors:
Shigetaka Yoshikawa
Zenichi Shinbo
Zenichi Shinbo
Application Number:
JP2001150242A
Publication Date:
June 30, 2010
Filing Date:
May 21, 2001
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F01P7/16; F16H61/00; F16H59/72
Domestic Patent References:
| JP7026955A | ||||
| JP61082010U | ||||
| JP61089917A | ||||
| JP2000227150A |
Attorney, Agent or Firm:
Keio Tabuchi