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公开(公告)号：US10281051B2
公开(公告)日：2019-05-07
申请号：US15463171
申请日：2017-03-20
Applicant: FCA Italy S.p.A.
Inventor： Michele Coppola , Luigi Spada , Marco Riaudo
Abstract: A vehicle tank pressurization device has a valve seat establishing an opening for fuel vapors and/or air; such opening has a vertical axis coincident with the direction of application of an opening force, that is directed upwards and is produced, in use, by the pressure in an internal upper region of the tank; the device also has a movable shutter, placed on the valve seat, to open/close the valve seat, and having a weight set by design in such a way as to define the magnitude of a closing force directed downwards and with a center of gravity positioned eccentrically with respect to the vertical axis of the opening.
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公开(公告)号：US10428772B2
公开(公告)日：2019-10-01
申请号：US15777802
申请日：2016-11-21
Applicant: FCA Italy S.p.A.
Inventor： Luigi Spada , Giovanni Salvi
Abstract: A canister for absorption of fuel vapors from a fuel tank, includes a hollow body defining an internal chamber containing absorbent material, a first opening communicating with a tank vent conduit, a second opening vented towards the atmosphere, and a third opening communicating with a conduit connected to an engine intake manifold. The canister body has outer and inner side walls parallel to and spaced apart from each other, and defining therebetween a thermally insulating interspace extending continuously for the whole circumferential extension of the outer side wall, on all sides of the canister body, whereby said thermally insulating interspace surrounds the internal chamber and promotes saving of heat generated inside the internal chamber in the absorption operating mode, during an engine inoperative stage, so as to improve canister scavenging efficiency during a subsequent stage wherein the scavenging operating mode is activated, when the engine is operative.
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公开(公告)号：US20170299076A1
公开(公告)日：2017-10-19
申请号：US15463171
申请日：2017-03-20
Applicant: FCA Italy S.p.A.
Inventor： Michele Coppola , Luigi Spada , Marco Riaudo
CPC classification number: F16K17/12 , B60K2015/03026 , B60K2015/03256 , B60K2015/03296 , B60K2015/0358 , B60K2015/03585 , F01N3/2066 , F01N2610/1413 , F02M37/0076 , F16K24/04 , Y10T137/7909
Abstract: A vehicle tank pressurization device has a valve seat establishing an opening for fuel vapours and/or air; such opening has a vertical axis coincident with the direction of application of an opening force, that is directed upwards and is produced, in use, by the pressure in an internal upper region of the tank; the device also has a movable shutter, placed on the valve seat, to open/close the valve seat, and having a weight set by design in such a way as to define the magnitude of a closing force directed downwards and with a center of gravity positioned eccentrically with respect to the vertical axis of the opening.
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