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Patent Searching and Data


Title:
V-TYPE INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2010/053055
Kind Code:
A1
Abstract:
A V-type internal combustion engine, wherein a balancer includes forwardly rotating unbalanced masses (31, 32) and reversely rotating unbalanced masses (33, 34A, 34B).  The forwardly rotating unbalanced masses (31, 32) are mounted in a distributed manner to counterweights (4Fr, 4Rr) provided to the front end side and rear end side of a crankshaft (1), and this causes each of the counterweights to generate a forward rotation balancing force couple acting against a primary inertia force couple.  The reversely rotating unbalanced masses (33, 34A, 34B) are mounted in a distributed manner to rotating bodies (15, 22, 23) which are mounted to power transmitting mechanisms (10, 20) arranged at the front and rear of the crankshaft (1) and which rotate in the direction opposite to the direction of rotation of the crankshaft (1), and this causes each of the rotating bodies to generate a reverse rotation balancing force couple acting against the primary inertia force couple.

Inventors:
SHIRABE TAKEO (JP)
OKAMOTO YASUO (JP)
YOSHIOKA SHINJI (JP)
Application Number:
PCT/JP2009/068689
Publication Date:
May 14, 2010
Filing Date:
October 30, 2009
Export Citation:
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Assignee:
TOYOTA MOTOR CO LTD (JP)
YAMAHA MOTOR CO LTD (JP)
SHIRABE TAKEO (JP)
OKAMOTO YASUO (JP)
YOSHIOKA SHINJI (JP)
International Classes:
F02B77/00; F02B67/04; F02B67/06; F16F15/26
Foreign References:
JP2007303439A2007-11-22
JP2007263371A2007-10-11
JP2007100540A2007-04-19
JPS5458501U1979-04-23
JP2007224836A2007-09-06
JP2002242692A2002-08-28
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (JP)
Patent business corporation ARC PATENT ATTORNEYS' OFFICE (JP)
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