Audi Nsu Auto Union Aktiengesellschaft

Wankel Gmbh

Audi Ag

Johannes Steinwart

Max Ruf

Armin Bauder

Gerhard Maurhoff

Gottlieb Wilmers

Peter Will

Dieter Stock

Wulf Leitermann

Wilhelm Hannibal

Erwin Korostenski

Reiner Pischke

Konrad Lummerzheim

Erwin Freyer

Drive arrangement for a camshaft fitted in the cylinder head of an

In a suction pipe installation for multicylinder internal combustion engine with a collector suction pipe, a suction distributor is connected therewith. Adjacently disposed individual suction pipes form a unitary unit with the collector suction pipe. The individual suction pipes extend from the flanges a curve of more than 90.degree. to connecting flanges. The collector suction pipe 1 is mounted in the chamber enclosed by the individual suction pipes, so that it does not require any additional space. A quiet airflow is formed in the straight line segment of the collection suction pipe 1, and in which an air amount meter 18 for a fuel injection installation is installed.

Suction pipe system for multicylinder internal combustion engine

A rotary compressor includes a casing 1 having a curved rotor chamber 2 in which is mounted a rotor 6. The compressor has an outlet valve 10 consisting of two valve units 10a, 10b which are located on inclined support surfaces 12 and outlet passages 11 from the chamber 2 open into the surfaces 12. Each valve unit 10a, 10b consists of a valve seat 15, a valve plate 13 and a limit plate 14, the valve seat 15 having apertures which register with passages 11 and the valve plate 13 having apertures which are staggered from the apertures in the valve seat 15. The support surfaces 12 are positioned close to the chamber 2 so that the length of the passages is small and the 'dead volume' between the chamber 2 and the valve plate 13 is reduced.

Rotary compressor

A fuel injection system for an internal combustion engine includes an air suction pipe, a throttle valve located in the pipe, and a member, upstream of the throttle valve, which is actuatable by air flowing through the suction pipe so as to move a piston valve to dose a quantity of fuel to a fuel injection nozzle. The system includes a duct which bypasses the throttle valve, the duct having a valve which closes the duct when the throttle valve is closed and when the engine is above the idling speed. Dosing of fuel is thereby stopped during coasting of a vehicle, leading to decreased fuel consumption.

Fuel injection system for an internal combustion engine

A fuel injection system for a mixture-compressing externally ignited internal combustion engine includes a flow sensing member (3) arranged in an air intake duct (1), the member (3) moving in accordance with the quantity of air flowing through the duct so as to actuate a fuel metering valve (7) and to dispense a quantity of fuel to fuel injection nozzles (9) of the engine. The pressure difference in the metering valve (7) is maintained constant by means of a pressure sensitive valve (11) and a differential pressure control valve (20), each of which has two chambers separated by a diaphragm (12 and 21). The differential pressure control valve (20) is actuated on both sides by springs (34, 36 and 54) whose loading stress can be varied according to engine operating parameters. The loading stress of the springs is adjusted by devices for full-load fuel concentration and cold-starting fuel enrichment, and also a device responsive to air pressure changes.

Fuel injection system

The fuel injection system for a mixture compressing externally ignited internal combustion engine includes a flow sensing member (3) arranged in an air intake duct (1), the member (3) moving in accordance with the quantity of air flowing through the duct so as to actuate a fuel dispensing valve (7) and to dispense a quantity of fuel to fuel injection nozzles (9) of the engine. The pressure difference in the dispensing valve (7) is maintained constant by means of a pressure sensitive valve (11) and a differential pressure control valve (20). The differential pressure control valve has two chambers (22 and 23) separated from each other by a rigid wall (21) and include diaphragms (24 and 25) arranged parallel to each other. The diaphragms are maintained at a fixed spacing from each other by a bolt (33) and both diaphragms are actuated by springs (37) and (42) which urge the diaphragms against each other. The loading stresses of the springs can be varied according to engine operating parameters and can be adjusted by devices for full load fuel concentration and cold-starting fuel concentration, and also a device responsive to air pressure chambers.

An internal combustion engine has at least one outlet passage for exhausting the burned gases, terminating at the exterior surface of the engine, and, alternatively, connectable to the afterburning device or to a by-pass line by-passing the afterburning device. A control regulated as a function of temperature is provided to direct the burned gases through the by-pass line at high temperature and through the afterburning device at low temperature.

Internal combustion engine having an afterburning device

A fuel injection system for a mixture-compressing internal combustion engine has separate ignition and continuous injection into the engine inlet duct which includes an adjustable throttle butterfly valve and a baffle flap pivoted at the side of the duct under the effect of the flow through the duct acting in opposition to a return force. The flap is coupled to a damper blade, and also to a coaxial rotary control member of a fuel metering valve, the latter comprising a control cylinder and a control piston rotating inside and in relation to the cylinder, and metering a quantity of fuel to one or more injector nozzles in proportion to the air current quantity. The control cylinder being stationary and mounted alongside the baffle flap outside the inlet duct, and the rotary control piston being connected outside the control cylinder adjacent one end to the baffle flap, and adjacent the other end to the damper blade, so as to rotate with the flap and the blade.

A fuel injection system for a mixture compressing spark ignition internal combustion engine includes means for injection of fuel into the air intake of the engine. A fuel metering valve dispenses to one or more injection jets a quantity of fuel related to the quantity of air flowing through the intake. An adjustable throttle valve is in the air intake as well as an air flow measuring element which is movable against a restoring force in accordance with the quantity of air flowing through the intake. The measuring element is arranged to actuate a control element of the fuel metering valve. A damping device having a damping element connected to the measuring element is movable to displace fluid between two damping chambers through a throttling passage. One damping chamber is connected to a fuel pump which delivers fuel to the metering valve while the second damping chamber is connected to a discharge port through a thermally controlled outlet valve. A metering trap chamber downstream of the outlet valve is provided with means for emptying the trap chamber after operation.

Fuel injection system having pressurized damping means

The invention relates to a fuel injection rotary piston internal combustion engine of the trochoidal type with a housing made up of a peripheral portion and two side walls and with a first injection nozzle in the peripheral portion and a second injection nozzle in the inlet port, which are connected to a fuel metering device and of which the delivery quantities are adjustable. A fuel delivery device continuously injects a quantity of fuel proportional to the air intake and is in permanent communication with the first nozzle. Control means connect the second nozzle to the fuel delivery device only from a predetermined part-load up to full load conditions.

Fuel injection rotary piston internal combustion engine of the

A fuel injection device for a mixture-compressing internal combustion engine has an induction passage provided with a main throttle element, and also has an injection nozzle including an injection head with a fuel injection opening, and a surrounding air chamber for supplying combustion air, which communicates with atmosphere or other air supply and has an outlet opening aligned with the fuel injection opening and spaced from the injection head.

Fuel injection device for internal combustion engines

A spark-ignition fuel-injection internal combustion engine is provided with a measuring member in its induction system to measure the air flow and a fuel injection nozzle in its induction system downstream of the measuring member.

Spark ignition fuel injection internal combustion engine

An interior seal for rotary piston engines in the form of a cast iron scraper ring is arranged for axial movement in an annular groove in one face of the piston; and an annular scraping edge of the seal slides along the interior surface of the neighboring end wall of the housing.

Method of making rotary piston engine cast iron interior seals by quench

The improved system for liquid cooling of a rotor of a rotary piston mechanism applies to those types having two housing walls spaced apart by a trochoidal shaped peripheral wall to define a multi-lobed cavity within which a multi-cornered rotor is eccentrically supported for planetary movement, and in which the rotor has a hub portion and peripheral wall portions defining therebetween cooling spaces which communicate with the area exteriorly of the rotor through an opening adjacent each end of the hub portion. The improved rotor cooling system comprises a cooling liquid discharge nozzle disposed in at least one of the housing walls and connecting the discharge nozzle to a source of pressurized cooling liquid. The discharge nozzle is positioned so as to direct emitted cooling liquid into the adjacent rotor opening and the cooling spaces in the rotor. In a narrower aspect of the invention a regulator and valve assembly is provided to control flow of cooling liquid to the discharge nozzle in accordance with the pressure conditions of the cooling liquid and temperature and load operating conditions of the engine.

System for liquid cooling of a rotor or a rotary mechanism

A device heats the fuel-air mixture by means of the exhaust in an internal combustion engine having an intake for the fuel-air mixture and an exhaust gas line, with a portion of the intake and a portion of the exhaust line having a common wall for heat transfer.

Growing community of inventors

Obersulm-Willsbach, Germany

Johannes Steinwart