Title:
VAPORIZED FUEL TREATMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/039152
Kind Code:
A1
Abstract:
In this vaporized fuel treatment device, a fuel passage or a return passage is provided with a heat reception part for heat from an internal combustion engine, and a control unit causes a fuel pump to be operated after warming of the internal combustion engine is completed, thereby returning the fuel heated by the heat reception part to a fuel tank via the return passage, and the control unit performs leak detection on the basis of a change in a pressure value detected by a pressure sensor after heating the fuel inside the fuel tank and generating a pressure difference inside the fuel tank.
Inventors:
HONDA YOSHIHIKO (JP)
MIYABE YOSHIKAZU (JP)
SHINAGAWA MASANOBU (JP)
BUSEKI NAOHITO (JP)
MIYABE YOSHIKAZU (JP)
SHINAGAWA MASANOBU (JP)
BUSEKI NAOHITO (JP)
Application Number:
PCT/JP2020/027100
Publication Date:
March 04, 2021
Filing Date:
July 10, 2020
Export Citation:
Assignee:
AISAN IND (JP)
International Classes:
F02M25/08; F02M31/16; F02M37/00
Foreign References:
| JP2010133363A | 2010-06-17 | |||
| JP2015516065A | 2015-06-04 | |||
| JP2003056416A | 2003-02-26 | |||
| JP2003035215A | 2003-02-07 | |||
| JPH0681727A | 1994-03-22 | |||
| JPH11218457A | 1999-08-10 | |||
| JP2013137035A | 2013-07-11 | |||
| JP2009275685A | 2009-11-26 |
Attorney, Agent or Firm:
COSMOS INTERNATIONAL PATENT & TRADEMARK OFFICE (JP)
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