Heating systems – Heat and power plants – Vehicle
Patent
1997-07-17
2000-08-29
Bennett, Henry
Heating systems
Heat and power plants
Vehicle
B60H 102
Patent
active
061095346
ABSTRACT:
To control fluctuation of blown air temperature of a heat exchanger to a small value without adding a movable mechanism such as a variable restricting valve, a heat exchanger for heating air by exchanging heat between hot water supplied from a water-cooling type engine and air, a flow control valve for controlling a hot water flow amount to the heat exchanger and a bypass circuit for allowing hot water to flow while bypassing the heat exchanger are provided. A pressure-responsive valve is provided on the bypass circuit and an opening degree of the bypass circuit corresponding to a pressure rise of the hot water is increased. The flow of returning hot water from the heat exchanger is blocked by the flow of the bypass side hot water at a merging portion where the bypass side hot water discharged from the pressure-responsive valve merges with the returning hot water discharged from the heat exchanger.
REFERENCES:
patent: 2749050 (1956-06-01), Booth
patent: 3523644 (1970-08-01), Kozinski
patent: 4560104 (1985-12-01), Nagumo et al.
patent: 5048752 (1991-09-01), Hintennach et al.
patent: 5184773 (1993-02-01), Everingham
Japanese Patent Application Laid Open No. 8-121627 (NIPPONDENSO) & WPI Abstract Accession No. 96-290069/199630.
Inoue Yoshimitsu
Ito Koichi
Okumura Yoshihiko
Sugi Hikaru
Bennett Henry
Boles Derek S.
Denso Corporation
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