Title:
PRESSURE CONTROL UNIT
Document Type and Number:
Japanese Patent JP2020143584
Kind Code:
A
Abstract:
To provide a pressure control unit for enabling appropriate pressure reduction control of fuel in a high-pressure channel of a fuel injection system.SOLUTION: A pressure control unit 1 includes a passage forming member 10 and a flow amount regulation part 20. The passage forming member 10 forms a fuel passage 13 communicating the high-pressure channel with a low-pressure channel. The flow amount regulation part 20 is provided in the fuel passage 13, where a plurality of orifice flow path 22 for regulating the flow of fuel and a plurality of opening chambers 23 having a larger flow path area than the orifice flow path 22 and a fixed volume are alternately arranged, for regulating the flow amount of the fuel flowing from the high-pressure channel to the low-pressure channel.SELECTED DRAWING: Figure 2
More Like This:
Inventors:
NISHIWAKI TADASHI
KUNO KOHEI
KUNO KOHEI
Application Number:
JP2019038631A
Publication Date:
September 10, 2020
Filing Date:
March 04, 2019
Export Citation:
Assignee:
DENSO CORP
International Classes:
F02M55/02; F02M37/00; F02M55/00
Domestic Patent References:
| JP2002515565A | 2002-05-28 | |||
| JP2004197834A | 2004-07-15 | |||
| JP2009259136A | 2009-11-05 | |||
| JP2006523793A | 2006-10-19 | |||
| JPH11107884A | 1999-04-20 | |||
| JP2003502541A | 2003-01-21 |
Foreign References:
| EP1435455A1 | 2004-07-07 |
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office