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AssigneeFirma Carl Freudenberg
InventorsBernd Beicht, Reinhard Tinz, Joachim Heinemann
Estimating the term…
An apparatus for the temporary storage and controlled feeding of the volatile fuel components situated in the free space of a tank to the intake tube of an internal combustion engine. The apparatus includes a vent line connecting the free space to the atmosphere. In the vent line there is disposed a storage chamber containing an absorption element, as well as a line connecting the storage chamber to the intake tube, which can be shut off by an electromagnetic check valve. Between the check valve and the intake tube there is disposed an auxiliary valve with a control chamber. The auxiliary valve can be closed by a vacuum actuator in dependence upon the pressure difference between the control chamber and the atmosphere.
In apparatus for the temporary storage and measured feeding of the volatile fuel components in the free space of a tank system into the intake tube of an internal combustion engine, including a vent line connecting the free space to the atmosphere, in which vent line there is disposed a storage chamber with an absorption element, as well as a line which connects the storage chamber to the intake tube and can be shut by an electromagnetic check valve having a control chamber of expanded cross section relative to said line between the check valve and the intake tube as well as an auxiliary means disposed in the control chamber for varying the opening of the check valve, the improvement wherein the auxiliary means comprises an auxiliary valve situated between the check valve and the intake tube, and wherein the auxiliary valve is closable by a vacuum actuator in response to the pressure difference between the control chamber and the atmosphere.
Dependencies are inferred from the claim text.