Title:
HEATER FOR VEHICLE
Document Type and Number:
Japanese Patent JP3489455
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To restrain the boiling of cooling water caused by a pressure loss without adding any water pumps or increasing a water pump capacity even if a compartment heater and a combustion heater are disposed in series on a cooling water circulation passage.
SOLUTION: In this heater 1, engine cooling water is heated by a combustion heater 17 provided separately from an engine main body 3; the engine main body 3, the combustion heater 17 and a compartment heater 9 are connected by a cooling water circulation passage 10 so as to use the engine cooling water as a heat medium for the compartment heater 9 of an engine-mounted vehicle; and the engine cooling water is circulated to the cooling water circulation passage 10 by a water pump 40. Thus, by performing pressure control for a portion of the cooling water circulation passage 10 between the combustion heater 17 and the compartment heater 9, the pressure drop of this portion is prevented.
Inventors:
Hiroshi Iida
Application Number:
JP23452898A
Publication Date:
January 19, 2004
Filing Date:
August 20, 1998
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
B60H1/03; (IPC1-7): B60H1/03
Domestic Patent References:
| JP5141840U | ||||
| JP5388063U |
Attorney, Agent or Firm:
Tsutomu Toyama (3 others)
Previous Patent: PICTURE REPRODUCTION METHOD AND CAMERA
Next Patent: AUXILIARY BATTERY FITTING STRUCTURE FOR ELECTRIC VEHICLE
Next Patent: AUXILIARY BATTERY FITTING STRUCTURE FOR ELECTRIC VEHICLE