US 2003/0213527 A1Published application

Evaporated-fuel storage system

AssigneeHonda Giken Kogyo Kabushiki Kaisha

InventorsTaiki Yanase, Tsuyoshi Chou, Hisayuki Gouma

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Abstract

A fuel tank and a canister are connected to each other by a first evaporated-fuel passage and a second evaporated-fuel passage, and a valve chamber of a float valve separate from the fuel tank is disposed at an intermediate portion of the first evaporated-fuel passage. Thus, there is no limitation in the positional relationship between a filled-up liquid surface in the fuel tank and a valve seat of the float valve. Therefore, it is possible to reduce the vertical dimension of the float valve. Moreover, since the valve chamber is provided separately from the fuel tank, it is unnecessary to define an opening for mounting the valve chamber to the fuel tank.

Claims3

Dependent claims

An evaporated-fuel storage system comprising:

a fuel tank having a filler tube extending upwards;
a canister for adsorbing an evaporated fuel fed from the fuel tank;
a first evaporated-fuel passage connecting the fuel tank to the canister;
a second evaporated-fuel passage connecting the fuel tank to the canister or an intermediate portion of the first evaporated-fuel passage;
a float valve adapted to close the first evaporated-fuel passage when a liquid surface in the fuel tank becomes a filled-up liquid surface;
and
a cut valve adapted to close the second evaporated-fuel passage when the liquid surface in the fuel tank becomes a predetermined liquid surface higher than the filled-up liquid surface,
wherein a valve chamber of the float valve is disposed separately from the fuel tank above the fuel tank, and an upstream end of the first evaporated-fuel passage leading to the valve chamber opens at a location corresponding to the filled-up liquid surface in the fuel tank.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/407,147Filed 4 Apr 2003
Priority: JP 2002-10753010 Apr 2002
Published: 20 Nov 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B60K 15/03519
Characterised by venting means: valve arrangements in the vent line
F02M 25/0836
Adding fuel vapours drawn from engine fuel reservoir: arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve…
F02M 25/0854
Adding fuel vapours drawn from engine fuel reservoir: details of the absorption canister
F02M 25/0872
Adding fuel vapours drawn from engine fuel reservoir: details of the fuel vapour pipes or conduits

Family

US 6,857,454 B2Related patent
US 2003/0213527 A1This patent

From the US filing history. Foreign family members aren’t listed.

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