Title:
FUEL INJECTION VALVE, AND METHOD FOR DRIVING FUEL INJECTION VALVE
Document Type and Number:
WIPO Patent Application WO/2023/007999
Kind Code:
A1
Abstract:
This fuel injection valve comprises: a main body portion including an inflow port into which fuel supplied from a fuel supply source flows, a flow passage through which the fuel that has flowed in from the inflow port flows, and a discharge port which is connected to the flow passage and which discharges the fuel; a valve unit at least a portion of which is formed using a magnetic body, which is disposed so as to be capable of moving in a straight-line direction between a position closing the discharge port and a position opening the discharge port, which is urged in the direction opening the discharge port by means of the pressure of the fuel flowing in from the inflow port, and to which an elastic force is imparted by an elastic member in the direction closing the discharge port; a solenoid device which includes a coil, which generates an electromagnetic force by causing a drive current to flow through the coil, and which drives the valve unit in the direction opening the discharge port, by means of the electromagnetic force; and a control portion which variably sets the value of a prescribed time period that includes a drive current supply start time point, of the drive current flowing through the coil, in accordance with a supply pressure of the fuel supplied to the inflow port.
More Like This:
| JP3922413 | FUEL INJECTION VALVE AND ITS ASSEMBLING METHOD |
| JP6380323 | Fuel injection device |
| JP2003017768 | STACKED PIEZOELECTRIC ELEMENT AND JET DEVICE |
Inventors:
OGAWA HISAO (JP)
Application Number:
PCT/JP2022/024918
Publication Date:
February 02, 2023
Filing Date:
June 22, 2022
Export Citation:
Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F02M51/06; F02M47/00
Foreign References:
| JP2003278586A | 2003-10-02 | |||
| JP2006200478A | 2006-08-03 | |||
| JP2011099358A | 2011-05-19 | |||
| JP2008025345A | 2008-02-07 | |||
| JP2010101349A | 2010-05-06 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
Download PDF: