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Title:
SOLENOID VALVE CONTROLLING METHOD IN FUEL SYSTEM
Document Type and Number:
Japanese Patent JP2006307848
Kind Code:
A
Abstract:

To provide a solenoid valve controlling method allowing arbitrary intervention in fuel supply by minimizing the amount of energy needs.

An outflow of fuel to air intake passage is prevented by intercepting the fuel supply during an interrupting time 47 set by an engine controlling section 13 in such a way that the engine controlling section 13 switches a solenoid valve 21 to a closing state, depending on an operation parameter of internal combustion engine 1, by applying a supply voltage (Uv) through a controlling unit 20. During the interrupting time 47, only when negative pressure occurs in nozzles (HD, TD, L1, L2), the solenoid valve 21 is turned on electricity by applying the supply voltage (Uv) to an energizing coil of the solenoid valve 21 with the controlling unit 20, and, on the other hand, in a remaining time 50 during which no negative pressure occurs in the nozzles (HD, TD, L1, L2) even within the interrupting time 47, the controlling unit 20 interrupts the supply voltage (Uv), and switches the solenoid valve 21 to the closing state.


Inventors:
Nickel, Hans
Naegele, Claus
Application Number:
JP2006000113420
Publication Date:
November 09, 2006
Filing Date:
April 17, 2006
Export Citation:
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Assignee:
ANDREAS STIHL AG & CO KG
International Classes:
F02M7/00
Domestic Patent References:
JP2005054782A2005-03-03
JP2004108580A2004-04-08
JPS62174555A1987-07-31
Attorney, Agent or Firm:
藤田 アキラ



 
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