Ktm Ag

Michael Viertlmayr

Marco Hubmann

Christian Rathgeb

Martin Forster

Roger De Coster

Peter Gorbach

Stefan Spatzenegger

David Arnold

Helmut Drochner

Michael Derntl

Christian Sperz

Christian Rehrl

Christian Mayrhofer

Bernd Holzleitner

A two-stroke internal combustion engine having at least one cylinder provided with a combustion chamber and an outlet and having a crank housing provided with a crank shaft. The housing is flow-connected to the combustion chamber via at least one transfer port, and the internal combustion engine is formed to inject fuel into the transfer port, against the transfer port from the crank housing into the combustion chamber; the internal combustion engine has at least one cylinder having two injectors, and fuel can be introduced by means of only one injector with a first engine load and by means of the two injectors with a second engine load.

Two-stroke internal combustion engine

Exhaust pipe

An inlet manifold arrangement is disclosed for a four-stroke internal combustion engine having at least one working cylinder with inlet valves and outlet valves and an inlet manifold assembly. The inlet manifold assembly has a flow direction for fluid (such as a fuel-air mixture) in the inlet direction, and an end section near an air filter device. The manifold assembly also has a throttle valve arrangement and a non-return valve which blocks in the direction opposite to the flow direction. The non-return valve is situated, in relation to the flow direction, between the end section of the inlet manifold assembly and the throttle valve arrangement.

Inlet manifold arrangement for a four-stroke combustion engine

Growing community of inventors

Obertrum, Austria

Michael Viertlmayr