Title:
【発明の名称】ディーゼルエンジンの燃料供給装置
Document Type and Number:
Japanese Patent JP2845003
Kind Code:
B2
Abstract:
PURPOSE:To prevent blocking of a fuel filter due to generation of wax in diesel fuel at a low temperature and prevent deficient fuel supply at the time of starting at a low temperature without using a means such as an electric heater, so as to enhance startability of a diesel engine. CONSTITUTION:A fuel supply device is provided with a fuel passage 13 at the time of cold starting for directly supplying excessive fuel of a relatively high temperature from a fuel tank 1 to a fuel injection pump 2 through a filter 3; and a fuel passage 15 after starting for supplying the excessive fuel, which is mixed with low temperature fuel from the fuel tank 1, to the injection pump 2 through the fuel filter 3. The passages are switched over by the use of solenoid valves 8, 9 at the time of starting of the engine and warming of the engine after the starting while the filter 3 is bypassed so as to decrease passage resistance on the fuel passage at the time of cold starting in the case of starting at a low temperature. Furthermore, fuel of a relatively high temperature is supplied from the fuel passage after the starting at the time of warming up of the engine after the starting, thereby preventing wax from being generated.
Inventors:
NARUSE HIKARI
Application Number:
JP1891992A
Publication Date:
January 13, 1999
Filing Date:
February 04, 1992
Export Citation:
Assignee:
TOYOTA JIDOSHA KK
International Classes:
F02M37/00; F02M37/04; F02M37/22; F02B3/06; (IPC1-7): F02M37/22; F02M37/00; F02M37/04
Domestic Patent References:
| JP58136662U | ||||
| JP365858U |
Attorney, Agent or Firm:
Aoki Akira (4 outside)