Title:
DRIVER FOR OIL PUMP OF TWO-CYCLE ENGINE
Document Type and Number:
Japanese Patent JPS56138411
Kind Code:
A
Abstract:
PURPOSE:To cause oil discharge proportional to the load upon an engine, by transmitting the reciprocation of a dipharagm actuated by the pulsating pressure of intake and exhaust, to an oil pump shaft through a transmission mechanism which changes the reciprocation into unidirectional rotation. CONSTITUTION:An oil pump 30 is connected through an oil inlet port 45 to the bottom of an oil tank 21 defined at the lower part of a fuel tank 20. The positive pulsating pressure of a crank chamber 5A is conducted to the diaphragm chamber of the oil pump 30 through a pipe 58. The reciprocation travel of the pump 30 is nearly proportional to the load upon an engine. The reciprocation of a diaphragm is changed into unidirectional rotation through a lever and a one-way clutch. The rotation is transmitted to the shaft of the oil pump 30. As a result, a quantity of oil almost proportional to the load upon the engine is discharged to an intake manifold 12 through pipes 47, 48.
Inventors:
ATSUMI RIYUUKICHI
MITSUI TAKEHIKO
MITSUI TAKEHIKO
Application Number:
JP4187680A
Publication Date:
October 29, 1981
Filing Date:
March 31, 1980
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD
International Classes:
F01M1/02; F01M3/00; F02B75/02; (IPC1-7): F01M1/02; F01M3/00