Title:
EXHAUST BRAKE DEVICE OF DIESEL ENGINE WITH TURBOCHARGER
Document Type and Number:
Japanese Patent JP3468989
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the braking force in a medium low speed rotation region while avoiding the abnormal behavior which is a matter of concern in a high speed rotation region.
SOLUTION: An exhaust brake valve 4 is disposed in an exhaust passage 2 on the downstream side of a turbine 3a of a turbocharger 3. A waste gate valve 6 is disposed in an exhaust by-pass passage 5 extending from an exhaust passage 3 on the upstream side of the turbine 3a to the exhaust passage 2 on the downstream side of the exhaust brake valve 4. A controller 14 controls the opening and closing of the exhaust brake valve 4 and the waste gate valve 6 in response to the operating condition of an engine, whereby while the closing degree of the exhaust passage 2 when the exhaust brake is operated in the medium low speed rotation region of the engine 1 is made high, the closing degree of the exhaust passage 2 when the exhaust brake is operated in the high speed rotation region of the engine is made low.
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Inventors:
Masaji Kumo
Takefumi Ishizuka
Kominato Ikumaro
Takefumi Ishizuka
Kominato Ikumaro
Application Number:
JP15000496A
Publication Date:
November 25, 2003
Filing Date:
May 21, 1996
Export Citation:
Assignee:
Hino Motors Ltd.
International Classes:
F02B37/00; F02B37/18; F02D9/04; F02D9/06; F02D23/00; (IPC1-7): F02D9/06; F02B37/00; F02B37/18; F02D9/04; F02D23/00
Domestic Patent References:
JP431614A | ||||
JP61207829A | ||||
JP63137U | ||||
JP62105334U |
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