Tesma Motoren-Und Getriebetechnik Gmbh

Tesma Motoren- & Getriebetechnik Ges.m.b.h.

Bernhard Maier

Sandor Palvolgyi

Sandor Palvoelgyi

Gerald Lackner

G&uuml;nther Pozgainer

A filler neck for the fuel tank of a motor vehicle. The inventive filler neck comprises a housing ( ) which has an outer closure ( ) that can pivot between a closed and opened position and which has a second closure element ( ) that is accommodated inside the housing. Said second closure element is interactively connected to a ventilating valve ( ) which, in order to equalize pressure, automatically opens in the instance of excess pressure inside the fuel tank and opens when inserting the dispensing nozzle ( ), said dispensing nozzle causing the closure element ( ) to swivel open. The inventive filler neck is characterized by a lever ( ) which is pivotally mounted on the housing ( ). Said lever is actuated by the dispensing nozzle ( ) when the same is inserted, and opens the ventilating valve ( ) before the dispensing nozzle ( ) causes the second closure element ( ) to swivel open.

Filler neck for the fuel tank of a motor vehicle

A filler neck for the fuel tank of a motor vehicle with a shutter which is mounted inside the filler neck and which can be actuated by the pump nozzle into an open position for filling the fuel tank and into a closed position via an actuating mechanism. The actuating mechanism of the shutter cooperates with a damping device during the closing movement in such a way that the shutter can be closed with a time delay.

Filler neck

An apparatus for slidably moving a valve control member adjacent a fuel neck of a fuel tank without generating transverse forces. The apparatus provides a slide engaging the valve control member and a toggle lever one arm of which slidably engages a pivotal lid in the fuel neck and the other arm of which is mounted for pivoting about an axis parallel to the pivot axis of the lid. The junction between the arms of the toggle lever engages the slide and converts the pivotal movement of the lid into linear movement of the slide and the valve control member.

Fuel neck valve control

To provide a simple on-board refueling vapor recovery (ORVR) system without separate check valves and the like, a multi-path valve, typically a 6/2 valve (5) is provided, and formed with a discrete switching path (13) which is inserted in a pressure equalization line (12). Upon valve operation between a fuel filling mode position and an operating mode position, respectively, the valve switches the discrete switching path of the pressure equalization line (12) to connect the equalization line (12) to a fuel vapor receptor through a valve outlet when the valve (5) is in operating mode position, while blocking the equalization line (12) when the valve (6) is in filling mode position. A roll-over valve (14) can be integrated into the system, preferably coupled to a small-diameter pressure equalization duct (15) with a fill vent line (3) which, by operation of the valve, is open when a nozzle (9) is introduced into a filling stub (2) for the fuel tank, but closed when the nozzle is removed, leaving only an operating vent line (4), the pressure equalization line (12) and the small-diameter pressure equalization duct (15) in communication with the outlet from the valve leading to vapor receptor.

Growing community of inventors

Bad Gleichenberg, Austria

Bernhard Maier