Pierburg Gmbh

Andreas Koester

Heinrich Dismon

Martin Nowak

Andres Toennesmann

Wolfram Hofschulte

Wilfried Synovzik

Michael-Thomas Benra

Michael Sanders

Axel Hemsing

Matthias Baden

Costantino Brunetti

A turbocharger includes a waste gate valve, a compressor, a turbine, a turbine housing which houses the turbine, a bypass channel which includes an opening cross-section, the bypass channel bypassing the turbine, a bypass channel portion formed in the turbine housing, an actuator housing which includes a separate first coolant channel having a coolant inlet port and a coolant outlet port, an electric motor arranged in the actuator housing, a transmission which includes an output shaft, the transmission being arranged in the actuator housing, and a control body coupled to the output shaft. The actuator housing is formed separately and is secured to the turbine housing. The control body controls the opening cross-section of the bypass channel.

Turbocharger with a turbine housing to which is attached an actuator housing of a waste gate valve

A valve unit includes a positioning device for converting a rotary motion into a linear motion, a valve rod, a drive unit, a drive shaft with an eccentric arranged thereon, a coupling element comprising a slot, and an output shaft arranged at the eccentric which moves in the slot of the coupling element. The valve rod is connected with the coupling element. The valve rod is linearly movable with the coupling element between an initial position where the valve is closed and an end position. The slot comprises a guide path which cooperates with the eccentric having an angle with a plane perpendicular to a direction of movement of the adjusting element. The initial position of the eccentric is a position which is located before a dead center existing for an axial movement of the output shaft. The dead center is passed during a rotational movement of the drive shaft.

Valve unit and a positioning device for converting a rotary motion into a linear motion

A magnet pump for an auxiliary unit of a vehicle includes an inlet, an outlet, an electromagnet comprising an armature, a core, a coil and a yoke, a cylinder comprising an outlet opening, and an axial piston which moves in the cylinder. The axial piston includes first and second axial piston parts, a gap arranged between the first and second axial piston parts, and an axial through bore. A first non-return valve is biased between the first and second axial piston parts and against the axial piston. A second non-return valve is biased against the outlet opening of the cylinder. The first axial piston part is connected with/is integrally formed with the armature and is lifted off the second axial piston part. A fluidic connection exists between the inlet and the outlet via the gap when the first axial piston part is lifted off the second axial piston part.

Magnet pump for an auxiliary assembly of a vehicle, and method for controlling a magnet pump for an auxiliary assembly

A valve device for an internal combustion engine includes a multi-part housing. A drive unit generates a rotational moment. The drive unit is arranged in a motor chamber. A transmission unit is arranged in a transmission chamber. An eccentric is configured to be driven by the transmission unit. A valve rod is configured to be displaceable in translation. The valve rod extends into a valve rod displacement chamber. A coupling element converts a displacement of the eccentric into a translational displacement of the valve rod. A valve seat is arranged between an inlet and an outlet. A valve closing body is attached to the valve rod. The valve closing body is configured to be lowered onto the valve seat and lifted off the valve seat. A cover is disposed between the eccentric and the coupling element. The cover is configured to separate the transmission chamber from the valve rod displacement chamber.

Valve device for an internal combustion engine

A gearbox for a gear () to be connected to an electric motor () comprises a box body () and a box cover (). Arranged internally of the box cover () is a holding portion for an output shaft bearing (). According to the invention, electric connectors () for electric connection of the electric motor () are provided within the box body (), and the electric feed lines () connected to the electric connectors () are injection-molded into the box body ().

Gearbox

An exhaust gas return system for an internal-combustion machine which comprises a low-pressure supply line extending from an inlet From the compressor. a high-pressure supply line extends to the internal-combustion machine. From the internal-combustion machine a high-pressure exhaust gas line extends to a turbine. From the turbine a low-pressure exhaust gas line extends to an outlet. The low-pressure exhaust gas line and the low-pressure supply line have connected therewith a low-pressure return line for returning exhaust gas. The high-pressure exhaust gas line has connected therewith a bypass line for utilizing the heat of the exhaust gas produced in the internal-combustion machine for heating the exhaust gas to be returned of the low-pressure return line before the exhaust gas is supplied to the turbine (24), if desired. Thus the cold start phase of the internal-combustion machine can be reduced.

Exhaust-gas return system for an internal-combustion machine and method of returning exhaust gas

A two-stage gear mechanism includes a drive shaft having a first gear stage disposed in a fixed housing and containing planetary wheels. The two-stage gear mechanism also includes a second gear stage, driven by the first gear stage and meshing with a drive shaft. Each of the planetary wheels is formed as a stepped double gear wheel with a first gear wheel that engages the drive shaft, and with a second gear wheel that points toward the direction of the output side. The bearing axles of each of the planetary wheels are disposed spatially fixed within the housing. The second gear wheels of the planetary wheels mesh with a hollow wheel of the second gear stage, the hollow wheel being non-rotationally coupled to the drive shaft.

Growing community of inventors

Essen, Germany

Andreas Koester