Title:
BREEZER DEVICE OF OVERHEAD VALVE ENGINE
Document Type and Number:
Japanese Patent JPH04103812
Kind Code:
A
Abstract:
PURPOSE:To satisfactorily feed oil to a rocker arm or a valve housed in a rocker arm chamber by providing a breezer passage for communicating a crank chamber with a push rod chamber on a half chamber part of a push rod chamber on a farer side from a breezer chamber. CONSTITUTION:An oil introducing passage 12 is formed between a cooling oil passage 11 and a front half chamber part 6c of a push rod chamber 6. A breezer passage 10 which is communicated with a crank chamber 8 is provided on a bottom of a half chamber part 6c on a farer side from a breezer chamber 9. Oil diffused into the crank chamber 8 is jetted from the breezer passage 10 together with blow-by gas, and sent to a rocker arm chamber 5. In addition, a part of oil which is used for cooling a cylinder part 2e is sent to the rocker arm chamber 5 through the cooling oil passage 11 and the oil introducing passage 12. Lubricating oil is thus satisfactorily fed to the rocker arm or valve on the farer side from the breezer chamber.
Inventors:
YAMADA KIICHIRO
Application Number:
JP22370890A
Publication Date:
April 06, 1992
Filing Date:
August 23, 1990
Export Citation:
Assignee:
KUBOTA KK
International Classes:
F01M9/10; F01M13/00; F01M13/04; F01P3/02; (IPC1-7): F01M13/00
Attorney, Agent or Firm:
Juichi Chatan