Robert Boschgmbh

Avl List Gmbh

Christian Graspeuntner

Heribert Kammerstetter

Theodor Stipek

Martin Bernhaupt

Christian Meisl

Franz Guggenbichler

Jaroslav Hlousek

Johannes Schnedt

Sven Pasedach

Gerhard Unterberger

Markus Kathan

Joachim Lackner

A reciprocating pump comprising a roller tappet and a pump plunger that is operatively connected to the roller tappet, wherein the roller tappet has a roller support, a roller and a pin, wherein a first bearing eye and a second bearing eye are formed in the roller support, wherein the pin is mounted in the first bearing eye and in the second bearing eye, wherein the roller is arranged on the pin in a rotatable manner, and wherein the pin is mounted more flexibly in the first bearing eye than in the second bearing eye.

Reciprocating pump

In a component (), in particular a housing of a high-pressure fuel pump, in which at least one first high-pressure channel () and one second high-pressure channel () are present, the longitudinal axis of the first channel () is at an acute or right angle to the longitudinal axis of the second channel (), wherein the second channel () leads into the first channel (), such that an intersection is formed. The first channel () is formed by a central bore () and at least one secondary bore () that enlarges the cross-section of the central bore (), wherein the longitudinal axis of the secondary bore () and the longitudinal axis of the central bore () extend parallel to one another. The central bore () passes through ugh the component () and consists of a first segment () extending over the intersection and a second segment () connected to the first segment, wherein the at least one secondary bore () extends only along the first segment () and no secondary bore is provided along the second segment ().

Component having high-pressure bores that lead into one another

A device for injecting fuel into the combustion chamber of an internal combustion engine with at least one injector includes an injector body equipped with a high-pressure accumulator, a nozzle needle axially displaceably guided in the injector and surrounded by a nozzle chamber, a high-pressure line connecting the high-pressure accumulator to the nozzle chamber, and a resonator line arranged in parallel with the high-pressure line and communicating with the nozzle chamber and opening into the high-pressure accumulator via a resonator throttle. The resonator line and the high-pressure line, at least in their sections adjacent the high-pressure accumulator, are formed in a retaining body which, on its end face, is screwed into the accumulator pipe forming the high-pressure accumulator.

Device for injecting fuel into the combustion chamber of an internal combustion engine

A method for roller burnishing a cylindrical component part surface of a workpiece includes using a roller burnishing tool including at least one rolling element. The at least one rolling element is pressed by hydrostatic pressurization radially outwardly against the component part surface and is left to roll down on the component part surface by rotating the roller burnishing tool or the workpiece. The torque arising as a result of the friction between the at least one rolling element and the component part surface is detected and sent for evaluation.

Method for roller burnishing a cylindrical component part surface

A closure bolt for an injector of a modular common-rail fuel injection system includes at least one high-pressure port for high-pressure fuel and a bolt-like portion which is configured to be inserted into an opening of the injector and which has a first, preferably conical, sealing surface for closing the opening in a high-pressure-tight manner. The bolt-like portion has a high-pressure bore which is hydraulically connected to the high-pressure port and which issues into the injector. The closure bolt further includes a throughflow limiter configured to limit the flow rate of fuel delivered into the injector. The bolt-like portion has an insert in which the throughflow limiter is formed and which bears the first sealing surface.

Closure bolt for an injector

In a fuel supply system for heavy oil common-rail injection systems for internal combustion engines, including a tank (), a primary feed pump () for delivering heavy oil from the tank () to a high-pressure pump (), wherein the high-pressure pump (), via at least one high-pressure line (), is connected to a high-pressure accumulator (rail) () feeding at least one injector (), and, furthermore, a purge valve (), which is connected to the high-pressure accumulator via a separate high-pressure line () for directing at least a portion of the heavy oil back into the tank () via a return line, the purge valve () includes a valve member () which is movable between an opened and a closed position, a high-pressure connection for a high-pressure line () communicating with a heavy oil high-pressure accumulator (rail) (), a low-pressure connection for a return line, and actuating means for actuating the valve member (), wherein the valve seat () of the valve member () is designed as a sliding seat.

Fuel supply system for heavy oil common-rail injection systems

In a device for the injection of fuel into the combustion chamber of an internal combustion engine, including at least one high-pressure accumulator (), an injector (), at least one high-pressure line () connecting the high-pressure accumulator () with the injector (), and a resonator line () arranged in parallel with the high-pressure line () between the injector () and the high-pressure accumulator () and including a resonator throttle () on the side of the high-pressure accumulator, the resonator line () is formed by an insert piece () pressed into the bore of the high-pressure line and is, in particular, formed within the same.

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Hallein, Austria

Christian Graspeuntner