Mtu Friedrichshafen Gmbh

Rolls-royce Solutions Gmbh

Robby Gerbeth

Michael Walder

Frank Mlicki

Andreas Mehr

Jörg Remele

Ralf Speetzen

Samuel Vogel

Joachim Schwarte

Gerald Fast

Josef Walter Hausknecht

Manuel Boog

Christian Wolf

Thilo Kreeb

Oscar Blasco

Markus Staudt

Mathias Stätter

Markus Gölz

Hubert Lugger

Carsten Engler

Tilman KÖRNER

A distributor apparatus of a common rail system for an internal combustion engine. The distributor apparatus is designed with at least one distributor device having a high-pressure line for fuel and a plurality of feed lines branching off from the high-pressure line within the distributor device. Each feed line leads to an individual accumulator and an injector. The feed line is associated with a restriction device and a discharge bore, which is designed to cooperate with a pressure-measuring device and which is arranged downstream of the restriction device, such that the restriction device is arranged in the feed line and the discharge bore, arranged in the distributor device, is connected to the feed line downstream of the restriction device.

Distributor apparatus of a common-rail system

In a multi-fuel injector for an internal combustion engine, including a housing with a nozzle needle movably disposed therein between a closed position in which the nozzle needle blocks a discharge of fuel from a collection chamber, to which a first fuel is supplied, above the nozzle needle, a control chamber is arranged to which a high pressure second fuel is supplied which acts on the nozzle needle to bias it into a closed position, and a control valve is provided in a pressure release line extending from the control chamber for a controlled release of the second fuel from the control chamber by opening the control valve so as to relief the closing pressure on the nozzle needle in order to permit lifting of the nozzle needle from the closed position for discharging the fuel from the collection chamber.

Multi-fuel injector for an internal combustion engine, method for operating a multi-fuel injector and internal combustion engine

A method for determining at least one injection parameter of an internal combustion engine, including the following steps: detecting a pressure profile in a time-resolved manner in an injection system of an internal combustion engine at least during an injection; providing a reference pressure profile for at least one operating point of the injection system; comparing the detected pressure profile with the reference pressure profile, and ascertaining at least one injection parameter as a function of the comparison.

Method for determining at least one injection parameter of an internal combustion engine, and internal combustion engine

A method for operating an internal combustion engine having a motor with cylinder and an injection system having a common rail and injectors for the cylinders. Each injector has an accumulator for holding fuel from the common rail. A multiple injection of fuel is performed during each working cycle of a cylinder, including injecting a first amount in a first injection and injecting a second amount in a second injection, and determining fuel pressure for the common rail and/or the accumulator. A fuel injection amount parameter is determined for the first injection; an individual accumulator pressure and/or a common rail pressure is determined for the second injection; and a fuel injection amount parameter is determined for the second injection. The individual accumulator pressure and/or the common rail pressure are/is considered for determining the injection amount parameter of the fuel for the second injection.

Method for operating an internal combustion engine and device for the openloop and closed-loop control of an internal combustion engine, injection system, and internal combustion engine

In a quantity limiting valve for a fuel injection system of an internal combustion engine including a cylinder with an inflow region and an outflow region separated by a piston axially movably disposed in the cylinder and a flow limiting fluid flow path extending along the piston between the inflow and outflow regions wherein the piston is biased with its front surface into contact with a stop element, the contact area between the front surface and the stop surface includes between the piston and the stop element a contact structure providing for an intermediate space which is in communication with the inflow region thereby to expose the front surface of the piston to the pressure of the fluid in the inflow region.

Quantity-limiting valve

Exemplary illustrations are provided of a common rail system for an internal combustion engine, having a rail for fuel and an injector for the purpose of injecting the fuel into a working space of the internal combustion engine, said injector having a fluid connection to said rail via a high-pressure conduit. The high-pressure conduit may have a high-pressure component with an individual reservoir, and the high-pressure conduit and/or the rail may have a pressure measurement device. The pressure measurement device may be coupled to a local logic and storage device of a decentralized, local electronic device which is designed for the purpose of locally analyzing and storing measurement data of the pressure measurement device, e.g., injector data and/or rail data, and the pressure measurement device is connected to the central electronic device via a bus, with the local logic and storage device connected between the same.

Common-rail system, internal combustion engine and device and method for controlling and/or regulating an internal combustion engine

A crankcase for an internal combustion engine, having a suction arrangement which is assigned to the crankcase and is configured for ventilating the crankcase of blow-by gas, in particular a gas/oil mixture, to produce a limited vacuum in the crankcase is disclosed. The crankcase has at least one dividing wall which is configured to feed blow-by gas and to separate oil. A ventilating housing part and a carrier housing part which is arranged above the ventilating housing part in included in the crankcase. The dividing wall is formed between the ventilating housing part and the carrier housing part and a suction arrangement is formed in the form of a suction jet pump which is configured for extracting oil from the dividing wall.

Separator wall for a crankcase

A a method for automatically controlling an internal combustion engine, in which an individual accumulator pressure (pE) of a common rail system is detected in a measurement interval and stored; in which an evaluation window is determined for the stored individual accumulation pressure (pE), within which window an injection was brought about; in which, in a first step, both a representative injection start and a trial injection end are determined in this evaluation window as a function of the detected pressure values, and, in a second step, both a trial injection start and a representative injection end are determined in this evaluation window as a function of the detected pressure values; in which the representative injection start is checked for plausibility against the trial injection start; and in which the representative injection end is checked for plausibility against the trial injection end.

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Friedrichshafen, Germany

Robby Gerbeth