Abstract: A fuel injection device works based on the principle of storage of energy in a solid body and is designed as a reciprocating piston pump with a feeding piston (35, 24) that stores kinetic energy during an almost resistance-free acceleration phase. The stored kinetic energy is abruptly transmitted to the fuel contained in a compression chamber (66), generating a pressure wave for injecting fuel through an injection nozzle. The means that interrupt the resistance-free acceleration phase are designed as a valve with a valve body (50a) and a valve seat (57) shaped on the feeding piston (35, 24). To generate the pressure wave, the valve closes the compression chamber (66) so that the kinetic energy of the feeding piston (35, 24) is transmitted to the fuel enclosed in the compression chamber (66). The valve seat (57) and the valve body (50a) lie at the front end of the feeding piston (35, 24), seen in the direction of injection, and separate the compression chamber (66) from the feeding piston (35, 24).

Abstract: A process for controlling the ignition in an internal combustion engine with a device for injecting fuel into a combustion chamber of the engine is provided, in which a control signal for the injection process and a control signal for the ignition process are used. The control signal for the injection process is used to start the measurement of a predetermined delay for the issue of the ignition control signal, as well as for the speed or load dependent switching to the ignition through the measurement of the crankshaft angle.

Abstract: The invention pertains to a circuit for driving the excitation coil of an electromagnetically driven reciprocating pump used as an injection device, characterized by a circuit for driving the rotor excitation coil (600) which is connected to a power transistor (601) which is grounded via a measuring resistor (602), whereby the output of a comparator (603) is hooked on to the control input of the transistor (601), e.g. to the transistor base, and whereby a current setpoint is applied to the non-inverting input of the comparator (603). This setpoint is e.g. obtained from a microcomputer and the inverting input of the comparator (603) is connected to the side of the measuring resistor which is connected with the transistor (601).

Abstract: A liquid gas engine includes at least one combustion chamber, in which a liquid gas/air mixture is introduced and ignited, the liquid gas engine having an injection device which injects liquid gas via an injection nozzle. The injection nozzle opens into the combustion chamber, so that the liquid gas is injected directly into the combustion chamber.The direct injection of the liquid gas achieves ideal combustion conditions, particularly since liquid gas evaporating in the combustion chamber induces cooling which is utilized particularly under a high load.The liquid gas engine is preferably provided with an injection device which is designed as an alternating piston pump and which works on the energy accumulation principle.

Abstract: An electric ignition device for an internal combustion engine having a primary and a secondary circuit coupled together by a transformer. The secondary circuit includes a spark gap. The primary circuit includes a capacitor that can be discharged. The voltage discharged by the capacitor is coupled by the transformer to the secondary circuit where it produces an ignition spark across the spark gap. The primary circuit is a resonant circuit that is repeatedly excited keeping the ignition spark burning as an arc. Current or voltage in the secondary circuit are detected to control the energy introduced into the spark gap.

Abstract: A method for signalling an energizing coil of a solenoid-operated reciprocating plunger pump employed as a fuel injection device, in which the energizing coil is energized via a current control circuit pulsed at high-frequency by an energizing current and each pulse causes an impulse movement of an armature driven by the energizing coil, and the current control circuit controls the energizing current flowing through the energizing coil as a function of a current setpoint curve, each pulse of the current setpoint curve comprises a gradually rising leading edge resulting in a corresponding gradually rising leading edge of the pulse of the energizing current in the energizing coil, the current setpoint curve being controlled so that the energizing current does not change faster than the maximum change in current possible for the minimum voltage available at the energizing coil and limited due to mutual induction.

Abstract: A heating system with a combustion chamber into which fuel is fed via a fuel feed unit in the form of an injection device which operates on the energy-storage principle and has a pump and a nozzle device which delivers bursts of fuel in specified quantities. With this fuel burner, it is possible to select both the quantity of fuel injected and the injection frequency independently of any boundary conditions, thereby optimizing levels of harmful pollutants in the exhaust gas and effectively counteracting resonance vibrations in the burner.

Abstract: The invention relates to a method of operating an internal combustion engine and to an internal combustion engine respectively. In accordance with the method of operating an internal combustion engine in accordance with the invention fuel is injected into a combustion chamber so that it is reflected by a piston, as a result of which charge stratification occurs in the combustion chamber. Fresh air is inducted slightly throttled or not throttled at all into the combustion chamber irrespective of the loading condition of the internal combustion engine so that the exhaust gases from the previous working stroke are completely swept from the combustion chamber. The output of the internal combustion engine is generated substantially via the injected amount of fuel. Due to the method in accordance with the invention charge stratification is caused in which burning of the fuel/air mixture is ideal. The internal combustion engine in accordance with the invention thus features smooth running for ideal emission values.

Abstract: The invention relates to a method of operating an internal combustion engine and to an internal combustion engine respectively. In accordance with the method of operating an internal combustion engine in accordance with the invention fuel is injected into a combustion chamber so that it is reflected by a piston, as a result of which charge stratification occurs in the combustion chamber. Fresh air is inducted slightly throttled or not throttled at all into the combustion chamber irrespective of the loading condition of the internal combustion engine so that the exhaust gases from the previous working stroke are completely swept from the combustion chamber. The output of the internal combustion engine is generated substantially via the injected amount of fuel.Dueto the method in accordance with the invention charge stratification is caused in which burning of the fuel/air mixture is ideal. The internal combustion engine in accordance with the invention thus features smooth running for ideal emission values.

Abstract: Disclosed herein is a fuel pump comprising a housing including therein a high pressure fuel chamber, a fuel outlet valve communicating with the high pressure fuel chamber and being operable to prevent fuel inflow and to permit fuel outflow when the fuel pressure is above a predetermined level, a fuel inlet valve communicating with the high pressure chamber and being operable to prevent fuel outflow and to permit fuel inflow, and a bearing bore extending from the high pressure chamber, a rod slideably and sealingly supported in the bearing bore for movement relative to a retracted position, and structure located in the housing for displacing the rod from the retracted position and in the direction toward the high pressure fuel chamber through an initial stroke length without encountering substantial resistance and thereafter displacing the rod through a subsequent stroke length which is effective to highly pressurize the fuel in the high pressure fuel chamber.