Fev Motorentechnik Gmbh & Co Kg

Fev Motorentechnik Gmbh & Co. Kommanditgesellschaft

Helmut Endres

Heinz-Jakob Neusser

Michael Breuer

Helmut Thone

Rainer Wurms

Spark-ignition piston engine with facilities for changing the inlet

A device to investigate the flow movement in cylindrical components of reciprocating piston internal combustion engines, which flow movement is generated by a flow-guiding system located, as seen in the flow direction, upstream of the cylindrical component, has at least one rotatable measuring vane in the cylindrical component, the axis of rotation of which intersects the axis of the cylindrical component at an adjustable angle other than 0.degree.. A shaft supporting the measuring vane is connected to a device to evaluate the frequency of rotation and/or the position of the angle of the measuring vane in order to determine one or more parameters of the flow movement in the cylindrical component.

Device to investigate the flow movement in cylindrical components

An intake and fuel/air mixing system for multi-cylinder externally ignited internal combustion engines with at least two inlet valves per cylinder, at least two separate intake pipe arms per cylinder assigned to the inlet valves, and fuel injection. The first intake pipe arms per cylinder are combined into a first group and other intake pipe arms per cylinder are combined into at least one other group. Each group is assigned one throttling member. The first group comprises a common fuel injection, and one injection each is assigned to the intake pipe arms or inlet ports of the other group or other groups. The throttling members of the individual groups are controlled in such a manner that for the region of low air flow rates the first group opens first and the other group or other groups are opened as a function of the speed and load with higher air flow rates.

Intake and fuel/air mixing system for multi-cylinder, externally ignited

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Herzogenrath, Germany

Helmut Endres