Title:
COOLING DEVICE FOR ENGINE
Document Type and Number:
Japanese Patent JPS62170717
Kind Code:
A
Abstract:
PURPOSE:To contrive to improve cooling performance by controlling a motor for a cooling water circulating pump on the basis of a detected signal on the inlet cooling water temperature of a cylinder head so as to avoid overshoot of a cooling water inlet temperature at the time of transient operation. CONSTITUTION:An engine main body 1 has a cylinder head 1a and a cylinder liner 1b and each water jacket 2, 3 respectively provided in these both 1a, 1b is respectively cooled by separate cooling systems A, B. Then the cooling system A has a radiator 4 for cooling the cylinder head 1a, a fan 5 for the radiator 4 and a pump 6 for circulating cooling water and these are connected by cooling pipe lines 7-9. In this case, a water temperature sensor 10 is pro vided, at the inlet side of the radiator 4, on the pipe line 7. And a motor 6a for the pump 6 is controlled, on the basis of a signal from the water tempera ture sensor 10, through an electronic control circuit 11 to keep the cooling water temperature proper.
Inventors:
YASUDA HIROYOSHI
Application Number:
JP1427286A
Publication Date:
July 27, 1987
Filing Date:
January 24, 1986
Export Citation:
Assignee:
FUJI HEAVY IND LTD
International Classes:
F01P3/20; F01P7/16; F01P3/02; F01P7/08; (IPC1-7): F01P3/20; F01P7/16
Attorney, Agent or Firm:
Nobujun Kobashi