Pressure transmitting passage of evaporative fuel treating appar

Details Pressure transmitting passage of evaporative fuel treating appar Pressure transmitting passage of evaporative fuel treating appar

1997-10-17

2000-01-25

Schwartz, Christopher P.

Land vehicles

Tank or boiler

Service tank

137588, B60P 322

Patent

active

060170611

ABSTRACT:
A pressure transmitting passage of an evaporative fuel treating apparatus, which allows communication between a differential pressure regulating valve provided at a fuel tank and a fueling port and includes hill portions and a dale portion, the hill portions and the dale portion being bent in a vertical direction of a vehicle, comprising: an enlarged diameter portion which is provided between the dale portion and the fueling port and can accommodate, at a position lower than a height of a liquid fuel column which can be pushed up due to internal pressure of the tank during fueling, fuel remaining in the dale portion.

REFERENCES:
patent: 3800978 (1974-04-01), Sigwald
patent: 4974645 (1990-12-01), Johnson
patent: 5538039 (1996-07-01), Harde

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