Title:
BALANCER FOR THREE-CYLINDER ENGINE
Document Type and Number:
Japanese Patent JPS5839852
Kind Code:
A
Abstract:
PURPOSE:To contrive reducing vibration for an engine and making a balancer into light-weight and compact size in such a way that the balancers which can be used also as bearings are installed at three places of a balancer shaft which revolves in the inverse direction to a crankshaft corresponding to the first-third bearings. CONSTITUTION:Crank arms of a crankshaft 1 for the first and third cylinders are provided with the counter-weights 6a-1, 6a-2; 6c-1, 6c-2 and 6a'-1, 6a'-2; 6c'-1, 6c'-2 to the mass at the reciprocating parts and revolving parts of the engine. Besides, a crank arm for the second cylinder is provided with the counter- weights 6b-1, 6b-2 to only the mass of the reciprocating parts. Further, a balancer shaft 7 is installed, which revolves in the inverse direction at the same speed as the crankshaft 1 which has been mentioned above, and balancers 8a- 8c are installed in the zone of said shaft 7 corresponding to the bearings 9a-9c of the crankshaft 1 for the first-third air cylinders. Then, all the balancers 8a- 8c are supported in a full-circumferential shape of shaft pipe, and they are used also as bearings 23.
Inventors:
SUZUKI TSUNEHIKO
Application Number:
JP13691381A
Publication Date:
March 08, 1983
Filing Date:
August 31, 1981
Export Citation:
Assignee:
FUJI HEAVY IND LTD
International Classes:
F16F15/26; F02B67/00; F02B75/18; (IPC1-7): F16F15/26
Attorney, Agent or Firm:
Nobujun Kobashi