Title:
ENGINE WITH VARIABLE STROKE CHARACTERISTICS
Document Type and Number:
WIPO Patent Application WO/2008/032439
Kind Code:
A1
Abstract:
An engine with variable stroke characteristics comprises links (60, 61) for
connecting a piston (11) to a crankshaft (30), a control member (65) so mounted
on an engine body as to be displaceable in both directions in a predetermined range,
a control link (63) for connecting either one of the links to the control member,
and an actuator (AC) for changing the position of the control member. The actuator
includes a ratchet mechanism that utilizes a force transmitted from the piston
to the control member as a drive force for the control member so that a power generation
means for rotationally driving a control shaft can be simplified. The engine
further inxcludes spring members (73, SP, 121) for imparting biasing forces
to the control member are provided, thereby providing proper drive forces in
both directions acting on the control member.
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Inventors:
YOSHIKAWA TAICHI (JP)
TANAKA SHIGEKAZU (JP)
FUJIMOTO JIRO (JP)
NAKANISHI KEITARO (JP)
FUJII NORIAKI (JP)
MAEZURU AKINORI (JP)
TANAKA SHIGEKAZU (JP)
FUJIMOTO JIRO (JP)
NAKANISHI KEITARO (JP)
FUJII NORIAKI (JP)
MAEZURU AKINORI (JP)
Application Number:
PCT/JP2007/000972
Publication Date:
March 20, 2008
Filing Date:
September 07, 2007
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
YOSHIKAWA TAICHI (JP)
TANAKA SHIGEKAZU (JP)
FUJIMOTO JIRO (JP)
NAKANISHI KEITARO (JP)
FUJII NORIAKI (JP)
MAEZURU AKINORI (JP)
YOSHIKAWA TAICHI (JP)
TANAKA SHIGEKAZU (JP)
FUJIMOTO JIRO (JP)
NAKANISHI KEITARO (JP)
FUJII NORIAKI (JP)
MAEZURU AKINORI (JP)
International Classes:
F02B75/04; F01B9/04; F01B31/14; F02B75/32; F02D15/02
Foreign References:
JP2003322036A | 2003-11-14 | |||
JP2005076555A | 2005-03-24 | |||
JPH10131916A | 1998-05-22 | |||
JP2004150353A | 2004-05-27 | |||
EP1674693A2 | 2006-06-28 | |||
FR2763097A1 | 1998-11-13 |
Other References:
See also references of EP 2063084A4
Attorney, Agent or Firm:
OSHIMA, Yoichi (Chiyoda-ku Tokyo, 51, JP)
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