Ventilation arrangement for a fuel tank
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 29, 2014
Grant Date -
Mar 8, 2012
app pub date -
Sep 2, 2011
filing date -
Sep 3, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A ventilation arrangement for the head space of the fuel tank of a vehicle consists of a valve assembly received in a housing (30), which assembly is arranged to produce a maximum pressure, which is not to be exceeded, a minimum pressure below which the pressure must not fall, and a random pressure, for example, for the tank filling process, within the head space. For this purpose a valve which is biased by a spring (25) in the direction towards an atmospheric connector (6) and is characterised by a sealing plate (17), and a valve biased by a spring (19) in the direction towards a connector (5) intended for connection to the head space, and a valve characterised by a sealing head (24) are provided, the latter of which is simultaneously connected to an electromagnetic drive in order to produce the random pressure. As a result of the constructional combination of all three valve functions in the housing (30), the mutually coaxial guidance of the sealing head (24) and of the sealing plate (17), a valve assembly is provided which takes up a small construction volume and is suitable in particular for use under the spatially limited installation conditions of a hybrid vehicle.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully