Hoerbiger Ventilwerke Gmbh

Peter Steinr&uuml;ck

Karl Rein

Alfred Pohl

Franz Seifert

Wolfgang Zeppelzauer

Josef Horvath

Franz Paset

A check valve ( ) controlled by differential pressure, preferably in form of a disk valve, having a closing element ( ) that impacts a valve seat ( ) with a force by means of an elastic (resilient) element, preferably a closing spring ( ). The closing element ( ) is provided with an additional mass ( ), which is larger in its amount than the mass of the closing element ( ) itself to dampen the closing shock in a manner whereby the closing element ( ) does not rebound even once or several times and also to dampen the opening shock of a valve of this type as a matter of course.

Check valve controlled by differential pressure

A wear monitor suitable in particular for monitoring the wear and tear of rider rings (,) on the pistons (,) of horizontally operating reciprocating compressors presents a sensor (,) that monitors the thickness of the rider ring (,) at least indirectly, is arranged in the area of the rider ring (,) in such a way as to move together with it and can be interrogated without contact via a motionless interrogation unit (,), which communicates with an evaluation unit (,). The sensor (,) preferably presents a passive surface acoustic wave element (,), whose electromagnetic reflection behavior depends on the thickness of the rider ring (,) consequent upon the degree of wear and tear thereof and which communicates with a sensor antenna (,) moving together with it, while the interrogation unit (,) presents a communicating interrogation antenna (,).

Wear monitor

A gas valve with electromagnetic actuation, in particular a fuel-injection valve for gas engines, is provided with a sealing member which is actuable by way of the armature of a controllable electromagnet between the or each fuel supply and the or each fuel outlet and with at least one closure spring acting upon the sealing member. In order to provide a gas valve which has&mdash;at the same time&mdash;a large throughflow cross-section, exact operating and response times as short as possible and a low power consumption and which is also suitable for use in multi-point or ported-gas admission systems and in the case of supercharged engines, in particular in the case of gas engines for commercial vehicles or stationary gas engines, at least one device for compensating the differential pressure acting upon the sealing member is connected to the sealing member.

Gas valve with electromagnetic actuation

A gas valve with electromagnetic actuation, in particular for use as a fuel injection valve for gas engines, includes a sealing element (,), actuable by way of an armature (,) of a controllable electromagnet (,), between a or each fuel inlet (,) and a or each fuel outlet (,), and at least one closing spring (,) acting on the sealing element (,). In order to achieve very short switching and response times while at the same time having a large passage cross-section, and thus to render the gas valve suitable also for use in multi-point systems and in supercharged engines, in particular gas engines for commercial vehicles, the gas valve is designed as a flat-seat valve with a plane valve seat (,) and a sealing element (,) with at least one plane sealing surface facing this valve seat.

Growing community of inventors

Hallstadt, Austria

Peter Steinrück

Growing community of inventors

Hallstadt, Austria

Peter Steinr&uuml;ck

Peter Steinrück