Siemens Aktiengesellschaft

Vdo Adolf Schindling Ag

Mannesmann Vdo Ag

Rolf Oppermann

Armin Seeger

Andreas Sausner

Thomas Hannewald

Peter Kohlen

Wolfgang Sauerschell

Lutz Scholten

Peter Welteroth

R&uuml;diger M&ouml;rbe

Michael Haede

Horst Sch&auml;fer

Jiri Martinovaski

Carlos Backes

A throttle valve connection piece for an internal combustion engine is disclosed, the piece including a housing and a throughflow opening in which the valve is pivotably mounted around a pivot axis. The pivot axis extends in a perpendicular manner with respect to a longitudinal axis the opening. The valve is used to close the throughflow opening. When in a closed position, the valve is inclined at a defined setting angle in relation to the longitudinal axis. The radial peripheral edge of the valve rests against the inner wall of the throughflow opening and the throughflow opening has a cylindrical shape at least in the region where the valve comes to rest. The cylindrical region of rest in relation to the longitudinal axis of the throughflow opening forms a circular cylinder which is cut on both sides at a certain angle, the levels of the cut are inclined at a similar angle in relation to the longitudinal axis.

Throttle connection fitting for an internal combustion engine

The invention relates to a method for producing a housing ( ) for a throttle valve connection piece ( ), which housing is to have particularly high dimensional stability. For this purpose, the housing ( ), which has a throttle orifice ( ) for a throttle valve ( ), is produced from plastic ( ) by the injection molding method, plastic ( ) being partially injected around a metal cylinder ( ) which, at least in the region of the throttle valve ( ), forms the throttle orifice ( ). In this case, before the injection molding method, an expanding mandrel ( ) is expanded against the inner face ( ) of the metal cylinder ( ). During the injection molding method, the inner face ( ) of the metal cylinder ( ) is supported at least partially by the expanding mandrel ( ). After the injection molding method, a reduction in the outer circumference ( ) of the expanding mandrel ( ) is carried out in order to remove the expanding mandrel ( ) from the interior ( ) of the metal cylinder ( ).

Method for producing a housing for a throttle valve connection piece

A throttle valve body ( ), especially for an internal combustion engine of a motor vehicle, having a tubular body ( ), which comprises at least an outer casing ( A, A), an inner casing ( B, B), a first end face ( C, C) and a second end face ( D, D), the inner casing ( B, B) of the tubular body ( ) forming a flow duct ( ) through which a gaseous medium ( ), especially air, can flow in a main flow direction ( ), a throttle plate ( ) swivel-mounted on a throttle shaft ( ) being arranged in the flow duct ( ), is to have an especially low weight and be manufactured at least partially from standard components. For this purpose the outer casing ( A, A) of the tubular housing ( ) is at least partially enclosed by a housing ( ) made of plastic ( ), at least one actuator ( ) for the throttle shaft ( ) being arranged in the housing ( ) and the tubular body ( ) being largely composed of metal ( ).

Throttle valve body

A load displacement device for a motor vehicle has a servomotor drivable in two directions of rotation and driving a coupling gear wheel which is guided by a coupling lever. An electromagnet swings the coupling lever against the force of a spring in order to bring the coupling gear wheel into engagement with the teeth of a second gear wheel. The teeth of the coupling gear wheel and/or of the second gear wheel are asymmetrically developed in order to produce a flat engagement angle between teeth of the gear wheels. The flat engagement occurs in both directions of rotation of the second gear wheel and the coupling gear wheel. No tooth displacement forces which cause a swinging of the coupling lever into a disengaged position occur due to the engagement of the teeth.

Speed control by an automatic load displacement device for an internal

An electric setting drive for an automotive vehicle speed control or regulating system has an electric motor (1), a gearing (2) which is connected to said motor, and has an electromagnetic rapid-disconnect coupling as well as elements for converting a rotation of the gearing into a linear motion. The linear motion can be transmitted via a pull cable to a spring-loaded throttle valve. For the conversion of the rotary movement into linear movement there is provided a threaded spindle (3) which is turnably connected with the gearing (2) and engages into a thread of a displaceably mounted electrically energizable pot magnet (4). Facing the pot magnet (4) there is a linearly movable armature plate (6) to which the pull cable (7) is attached.

Electric setting drive for an automotive vehicle speed control or

Growing community of inventors

Schwalbach, Germany

Rolf Oppermann