Title:
EVAPORATED FUEL TREATING DEVICE
Document Type and Number:
Japanese Patent JP2016133052
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an evaporated fuel treating device capable of improving reliability of a fuel tank.SOLUTION: A sealing valve unit 32 is provided in a halfway of a vapor flow passage 30 communicating a fuel tank 12 with a canister 28. A solenoid valve 38 which is controlled to be opened and closed by a control device, a first positive and negative pressure safety valve which is opened when a differential pressure P between a pressure in a tank side vapor flow passage 30T (inlet side pressure) and a pressure in a canister side vapor flow passage 30C (outlet side pressure) exceeds a prescribed positive pressure threshold and when the differential pressure P is lower than a prescribed negative pressure threshold, and a second positive and negative pressure safety valve which is opened when the differential pressure P exceeds the positive pressure threshold and when the differential pressure P is lower than the negative pressure threshold are arranged in parallel in the sealing valve unit 32.SELECTED DRAWING: Figure 1
Inventors:
SHIMOKAWA SHINJI
Application Number:
JP2015008021A
Publication Date:
July 25, 2016
Filing Date:
January 19, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02M25/08; B60K15/035; F02M37/00
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Hiroshi Fukuda
Kato Kazunori
Hiroshi Fukuda