Rotary combustion engine having improved ignition means
AssigneesAudi NSU Auto Union Aktiengesellschaft, Wankel GmbH
InventorsTheo Seufer, Richard VAN Basshuysen
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Abstract
The improved ignition means for a rotary combustion engine of the type, having a rotor which planetates within a multi-lobed housing cavity which is partly defined by an inner peripheral wall surface, comprises a spark plug having an axis which extends substantially normal to the peripheral wall surface and has means forming a spark-gap disposed in an ante-chamber adjacent the inner peripheral wall surface. An ignition channel of small size in relation to the size of the ante-chamber extends from the ante-chamber through the peripheral wall surface and is disposed in offset substantially parallel relationship with the longitudinal axis of the spark plug.
Claims6
In a rotary internal combustion engine of the type having a housing with a peripheral inner wall surface defining a multi-lobe cavity and in which a rotor is eccentrically supported for planetary rotation and wherein said rotor periphery defines with the housing a plurality of working chambers which expand and contract in volumetric size as the rotor rotates, an improved ignition device in said housing comprising:
- a. a spark plug having an elongated electrode means disposed centrally thereof and forming at one end of the spark plug one part of a spark-gap;
- b. support means in the housing for receiving and supporting said spark plug so that said spark-gap end portion defines with said support means an ante-chamber in close spaced relation to the inner peripheral wall of the housing;
- and
- c. an ignition channel for communicating the ante-chamber with successive working chambers;
- d. said channel being of small size relative to the size of the ante-chamber and disposed with its longitudinal axis in offset relationship with the electrode means in a direction counter to the direction of rotor rotation and extending substantially parallel to the longitudinal axis of the central elongated electrode means.
Dependencies are inferred from the claim text.