Title:
FUEL SUPPLY DEVICE
Document Type and Number:
Japanese Patent JP2016061181
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent a fuel pressure of a feed passage from being over an allowable pressure while keeping the fuel pressure in the feed passage at a vapor pressure or more, to solve a problem of a probability that the fuel pressure of the feed passage may be over the allowable pressure due to rise of an actual valve opening pressure of a pressure regulation valve when a fuel temperature in a tank rises and a pressure in the tank is increased, as in the pressure regulation valve for adjusting the fuel pressure of the feed passage, the pressure in the fuel tank acts as a back pressure.SOLUTION: Pressure regulation valves 22, 24 different in valve opening pressures, are disposed in a first return passage 93 and a second return passage 94 for returning a liquefied gas fuel in a feed passage to a fuel tank 10, so that the pressure regulation valve 22 of high valve opening pressure is acted when a pressure in the fuel tank 10 is low, and the pressure regulation valve 24 of low valve opening pressure is acted when the pressure in the fuel tank 10 is high.SELECTED DRAWING: Figure 1
Inventors:
ABE MASAYUKI
Application Number:
JP2014188002A
Publication Date:
April 25, 2016
Filing Date:
September 16, 2014
Export Citation:
Assignee:
DENSO CORP
International Classes:
F02M37/00; F02B43/00; F02M21/02
Domestic Patent References:
| JP2012193637A | 2012-10-11 | |||
| JP2003239788A | 2003-08-27 |
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office