Internal-combustion engines – With heating means
Patent
1997-09-24
1999-05-04
Solis, Erick R.
Internal-combustion engines
With heating means
123198R, F02N 1706
Patent
active
058991832
ABSTRACT:
According to the present invention, when a vehicle speed is less than a set value (e.g., 40 km/h) and a throttle opening degree is more than a set value, it is determined that the vehicle is accelerating, and a viscous clutch is turned off. Therefore, a shearing operation of high-viscosity fluid by a rotor of a viscous heater is not performed. In this way, a driving load applied to an engine is reduced, so that an accelerating state suitable for an intention of a driver can be obtained. Further, when the vehicle speed is more than a set value (e.g., 40 km/h) and an engine rotational speed is more than a set value (e.g., 3500 r.p.m.), the viscous clutch is turned off, and a driving load applied to the engine and a V-belt is reduced.
REFERENCES:
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patent: 4610146 (1986-09-01), Tanemura
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patent: 5546755 (1996-08-01), Krieger
Aoki Shinji
Ban Norifumi
Ito Hajime
Kato Yasushi
Morikawa Toshio
Denso Corporation
Solis Erick R.
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