Hoerbiger Kompressortechnik Holding Gmbh

Hoerbiger Kompressortechnik Services Gmbh

Hoerbiger Valvetec Gmbh

Peter Steinrück

Bernhard Spiegl

Markus Testori

Martin Könczöl

Gerhard Kogler

Karl Rein

James J McCoy, Jr

Gunther Machu

Michael Miks

Gerhard Ranegger

Hans Mathews

Jürgen Murhammer

A combustion chamber injection nozzle () having a plurality of injection channels () for a main fuel gas, a pre-combustion chamber, and a plurality of torch channels () for hot combustion gas connected to the pre-combustion chamber (), the injection channels () and the torch channels () communicating with peripheral openings arranged next to one another so as to alternate in a circumferential direction.

Fuel gas feed and ignition apparatus for a gas engine

A fuel gas feed and ignition apparatus for a gas engine () with a combustion chamber includes a number of injection channels (), a main fuel gas feed line () for main fuel gas in which a main fuel gas valve () is arranged, and a number of torch channels () for hot combustion gas connected to a pre-combustion chamber (), wherein an ignition fuel supply line () leads to the pre-combustion chamber () and a pre-combustion chamber valve () is arranged in the ignition fuel supply line (). Control of both the time and the duration and thus also the quantity of the injection of main fuel gas, as well as of ignition fuel for the pre-combustion chamber completely independently of one another and in a precise and, above all, rapid manner is achieved in that both the main fuel gas valve () and the pre-combustion chamber valve () are embodied as an electrically-actuated, electronically-controlled valve.

Conventional spark-ignited gas engines with a mechanically controlled fuel feed valve have several disadvantages in terms of operation, expensive control, irregular combustion or unstable and unreliable operation, which in turn can lead to operational and mechanical problems. In order to eliminate these disadvantages it is suggested, according to the invention, that a controlled valve is installed in the fuel line upstream of the fuel feed valve so that in the fuel line between fuel feed valve and controlled valve a defined intermediate volume is created and gaseous fuel is fed via the controlled valve into the intermediate volume.

Spark-ignited gas engine

A spring cup in an automatic suction and pressure valve has an internal contour which opens in the shape of a calotte so as to reduce wear at the ends of a valve spring positioned in the spring cup and thereby lengthen its useful life.

Automatic suction and pressure valve

A metallic separating plateis arranged between the sealing ringsand the synchronizing plateto prevent mutual wear of the sealing ringsand the synchronizing platein an annular valve having sealing ringsas sealing elements and a synchronizing plateto synchronize and dampen the ring opening movement.

Automatic annular valve

For stepless capacity control of a reciprocating piston compressor, an unloader () arranged on a suction valve () keeps open said suction valve () over a thereby controllable portion of the working cycle of the compressor by means of an unloading piston () biased by gas pressure via a control valve (). The gas pressure biasing the unloading piston () is always above the gas pressure required to overcome the maximum possible reverse flow force, whereby a controllable partial discharge of the unloading cylinder () is performed in each phase of the working cycle up to the closing of the suction valve () by means of the control valve (), which is designed to switch rapidly. The theoretical discharge time of the entire discharging volume for the partial discharge is preferably maximal nearly equal or even less than twice the duration of the working cycle.

Method of stepless capacity control of a reciprocating piston compressor and piston compressor with such control

An electromagnetically actuated gas valve () for gas engines () includes a valve seat () that has at least one flow-through opening () and a corresponding sealing plate (), with the sealing plate being movably arranged and guided essentially perpendicularly relative to the valve seat (), with barrier surfaces () and discharge openings (). The sealing plate () is loaded against the valve seat () by means of a return spring () and can be lifted for the purpose of opening it via a solenoid (). In order to allow for the secure sealing and easy switchability even in the presence of the effect of the combustion chamber pressure, the sealing plate () is arranged on the discharge side of the valve seat () and connected by means of a stamp (), which extends through the valve seat (), with the anchor plate () of the solenoid (). A Venturi tube meter () is arranged on the discharge side after the sealing plate () for the purpose of calibrating the flow-through correction value and for suppressing any dispersions due to manufacturing variations with regard to the effective flow cross-section, and the cross-section of the Venturi tube meter () is smaller than the sum of the effective flow-through cross-sections between valve seat () and opened sealing plate ().

Electromagnetically actuated gas valve

A stationary arranged sensor () is provided in the region of one of the dead centers of the piston movement to monitor the position of the path of motion of a piston () relative to a cylinder () whereby the sensor () measures the lateral distance (a) to an indicator unit () arranged on the piston (). The sensor () is arranged in a recessed position relative to the inner surface of the cylinder () and is sealed toward the cylinder chamber () by means of a cover (), and the indicator unit () on the piston () is designed as an anomaly () that is non-sensitive to contaminating deposits in the area of the face () of the piston ().

Monitor to check the path of motion of reciprocating piston

A valve for bringing gaseous fuel into the combustion chamber ( ) of gas engines includes a solenoid valve ( ) controlling the fuel supply ( ) and an adjoining check valve ( ) designed as a poppet valve, which is closed by the force of a spring and which opens in the direction of the combustion chamber through the pressure of gas flowing from the opened solenoid valve ( ). The stem ( ) of a poppet is connected to a step piston ( ) on the side that faces away from the head ( ) of the poppet whereby the step piston's larger upper side ( ) facing away from the poppet and the opposite smaller underside ( ) are biased by the fuel pressure existing in an intermediate chamber ( ) located between the solenoid valve ( ) and the head ( ), and whereby the step piston's step area ( ), being the difference between the two step piston areas ( ), is influenced by an essentially constant pressure, and whereby the step area ( ) of the step piston ( ) is significantly larger than the actuation area that remains between the stem and the seat area of the valve opening.

Growing community of inventors

Hallstatt, Austria

Peter Steinrück