Title:
RECIPROCATING INTERNAL COMBUSTION ENGINE AND ITS OPERATING METHOD
Document Type and Number:
WIPO Patent Application WO/2002/052140
Kind Code:
A1
Abstract:
An operating method of a reciprocating internal combustion engine in which a net fuel consumption rate is improved by reducing frictional loss power at an indicated power of substantially the same magnitude as a conventional one thereby increasing net output. A reciprocating internal combustion engine having output characteristics generating a maximum indicated power PM when the rotational speed of the engine is a first specified r.p.m. N1 is provided with an output lowering means (26). The output lowering means (26) lowers the engine output when the rotational speed exceeds a second specified r.p.m. N2 so that a required indicated power PS is obtained from the internal combustion engine (output characteristics thereof are shown by a solid line) at the second specified r.p.m. N2 lower than the first specified r.p.m. N1. Since the high rotational speed region out of the engine rotational speed region R where the internal combustion engine is operated is set at an r.p.m. lower than an r.p.m. N3 generated at the required indicated power PS (maximum indicated power Pm) by a prior art (output characteristics thereof are shown by a dashed line), frictional loss power PL at an indicated power of substantially the same magnitude as a conventional one is reduced as compared with a conventional one thus increasing a net output and a net fuel consumption rate.
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Inventors:
SUZUKI MASATOSHI
SHIMADA TOSHIO
KUBOTA RYO
NAKAMURA MASASHI
TAKAHASHI KATSUNORI
SHIMADA TOSHIO
KUBOTA RYO
NAKAMURA MASASHI
TAKAHASHI KATSUNORI
Application Number:
PCT/JP2001/010113
Publication Date:
July 04, 2002
Filing Date:
November 20, 2001
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
B60W10/04; B60W10/02; B60W10/06; B60W10/10; B60W10/11; F02D29/00; F02D31/00; F02D37/02; F02D41/14; F02D41/32; F02D45/00; F02N15/02; F16D43/18; (IPC1-7): F02D45/00; F02D17/02; F02P5/15
Foreign References:
| EP1010880A2 | 2000-06-21 | |||
| JPH0932602A | 1997-02-04 | |||
| JPH10159973A | 1998-06-16 | |||
| EP1048845A1 | 2000-11-02 | |||
| US5445121A | 1995-08-29 | |||
| US6148777A | 2000-11-21 | |||
| US5559703A | 1996-09-24 | |||
| GB2279111A | 1994-12-21 |
Other References:
See also references of EP 1344925A4
Attorney, Agent or Firm:
Ehara, Nozomu (Toranomon 2-chome Minato-ku, Tokyo, JP)
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