Itt Manufacturing Enterprises, Inc.

Continental Teves, Ag and Company Ohg

Carl Freudenberg Kg

Leybold Optics Gmbh

Eagle Actuator Components Gmbh & Co. Kg

Semilev Gmbh

Christof Klesen

Thomas Berthold

Michael Vogt

Alfred Eckert

Michael Zydek

Manfred Kahrs

Ralf Heinrich

Karlheinz Bill

Torsten Gerlich

Thorsten Neu

Heinz Zingel

Mario Roder

Martin Aenis

Martin Semsch

Ulrich Oldendorf

Andreas Caspari

Thomas Vogt

Christopher Klatt

J&uuml;rgen Pfeiffer

Mark Bayens

Alexander Muller

Stefan Krebs

Thomas Sebald

Alexander MÜLLER

The invention relates to a locking device for a lock opening which is arranged in a wall between a first and a second recipient, said lock opening comprising a blocking element, which is arranged in the inner chamber of the first recipient, and a counter-plate which is associated with the blocking element. A first magnet device is provided in an area of the counter-plate and a second magnet device, which is associated with the first magnet device, is provided in the region of the blocking element. In order to close and/or open the locking device by means of the first and second magnet device, a positive and/or negative contact pressure can be produced between the blocking element and the counter-plate.

Locking device

A system for the metered feeding of volatile fuel components, in particular into the intake manifold of an internal combustion engine of a motor vehicle, includes an electromagnetic canister-purge valve which is actuatable in proportional pulse-width modulation, and a closed-loop control circuit with which, for the purpose of compensating for external interferences, the coil current of the canister-purge valve is adjustable. The system is characterized in that at least one device provided for detecting a variable parameter that includes at least one of a mass flow through the valve, a volume flow through the valve, a distance between the valve seat and the sealing element of the valve, and a CHportion in the volume flow. The coil current is adjustable as a function of the parameter.

System for the metered feeding of volatile fuel components

A brake power assist unit for motor vehicles, the control valve of which can be electrically actuated by means of an electromagnet which actuates a third sealing seat that allows ventilation of the operating chamber. In order to stabilize the characteristic of the load system formed by the armature of the electromagnet, a sleeve that carries the third sealing seat and the valve body of the control valve by means of constructive modifications of the control valve of the externally actuated brake power assist unit, in particular, during the pressure reduction phase, the invention proposes means that allow a controlled pneumatic pressure compensation between the operating chamber and the vacuum chamber or a reduction in the force to be generated by the electromagnet during the pressure reduction phase, i.e., during the return movement of the third sealing seat from the valve body.

Power brake for motor vehicles

A brake system for motor vehicles with an adjustable pneumatic brake force booster includes a control valve which can be actuated by an electromagnet independently of the driver's actions. A brake pressure controller generates signals which serve to actuate the electromagnet. In order to be able to implement a quick-action, low-noise pressure regulating system at low cost, the brake pressure controller (,) is formed by connecting in parallel an electromagnetic control circuit (,) that processes the nominal brake pressure signal (P,) into a first current value (I,) and a regulating circuit (,) that processes a control difference (&Dgr;P) formed from the nominal brake pressure signal (P,) and the actual pressure signal (P,) into a second current value I,, with the output variable (I,) of the brake pressure controller (,) being formed by adding together the two current values (I,, I,).

Braking system for motor vehicles

Braking system for automotive vehicles

Method of operating a pneumatic brake booster

Brake servo device for motor vehicles

Growing community of inventors

Modautal, Germany

Christof Klesen