Title:
BLOW-BYE GAS REDUCING DEVICE FOR ELECTRONIC CONTROL ENGINE
Document Type and Number:
Japanese Patent JPS5820917
Kind Code:
A
Abstract:
PURPOSE:To inhibit a pulsation of intake air by restricting transmission of a pressure variation within a crankcase to a suction duct without deteriorating permeable peculiarity of blow-bye gas and fresh air, by installing a pulsation absorbing valve in a blow-bye gas duct. CONSTITUTION:A pulsation absorbing valve 13 is installed on the midway of an upper blow-bye hose 10 connecting a blow-bye gas outlet 9 provided on a rocker cover 8 with a suction duct 2 which is upstream a suction air throttle valve 1 and is downstream an air flow sensor 3. The pulsation absorbing valve 13 is constituted so that an opening area of a blow-bye duct is made smaller according as a gas flow in the blow-bye duct decreases. With this, a pressure variation within a crankcase 4 is made hard to transmit to a suction duct 2.
Inventors:
KUBOKAWA HIROSHI
NAGAISHI HATSUO
MAEKAWA MITSUO
AMEMORI YUKIO
ABE MANZABUROU
NAGAISHI HATSUO
MAEKAWA MITSUO
AMEMORI YUKIO
ABE MANZABUROU
Application Number:
JP11930681A
Publication Date:
February 07, 1983
Filing Date:
July 31, 1981
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
F01M13/00; F01M13/02; F02M25/06; F02F7/00; (IPC1-7): F02M25/06
Domestic Patent References:
| JPS6044493A | 1985-03-09 |
Attorney, Agent or Firm:
Tomijio Sasashima