Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Ag, Ing. H.c.f. Porsche

Klaus Schneider

Erwin Rutschmann

Herbert Ampferer

Hans-Joachim Esch

Van-Khanh Tran

Dieter Zaremba

A mid-mounted radiator in a motor vehicle has at least one outgoing air guide attached laterally on the left and right of the radiator. In vehicles with a relatively low cooling requirement, the lateral outgoing air guides are removed and the openings are closed by a cover.

Air conducting apparatus for outgoing air guidance

A crossmember () for a front bumper of a motor vehicle () has at least one throughflow opening for air. At least one exit-air opening () is provided on a rear side () of the crossmember () to accommodate a discharge of exit air from a cooler of the motor vehicle.

Crossmember

A motor vehicle chassis and a water-cooled internal combustion engine attached thereto has a cooling system comprising coolant-conducting pipes least one radiator element, and a coolant pump produces forced flow in the cooling circuit. A portion of the cooling pipe system as a distributor pipe module is attached to the vehicle's axle support.

Body and front axle bearing for a motor vehicle

A support is constructed for holding an accessory of an internal combustion engine and for guiding an operating medium of the internal combustion engine. In order to expand the range of applications of the support, it is designed for accommodating several accessories and for guiding cooling liquid from a cylinder housing to a radiator.

Support for an accessory of an internal combustion engine and method of making same

A cooling device for an internal combustion engine is installed in a motor vehicle, especially in a passenger car. The cooling device has several radiators, which are disposed in a front section of the passenger car and connected over pipelines with the internal combustion engine. For reasons of space and to improve the effect, the cooling device in the front section, comprises a radiator, which extends transversely to the longitudinal direction of the vehicle, and two lateral radiators, which extend obliquely to a longitudinal central plane. Through the agency of a collecting device with cooling water outlet pipelines, the radiators are connected to a common supplying pipeline, which is connected with the internal combustion engine. Moreover, downstream from the internal combustion engine, there is a returning pipeline, which is connected with a branching device, from which the cooling water-returning pipelines lead to the radiators.

Cooling device for an internal combustion engine

A coolant circuit contains an expansion tank to which at least one vent line is connected which is connected with an internal-combustion engine and/or a radiator. In order to shorten the warm-up phase of the internal-combustion engine, a stop valve is provided to block the connection of the vent line to the expansion tank during the warm-up phase. As a result, the coolant situated in the expansion tank is not circulated in the short circuit.

Coolant circuit of an internal-combustion engine

A multi-cylinder internal combustion engine with a vacuum and an exhaust gas system is provided with a feed device for secondary air into the exhaust gas system and with an external exhaust gas return. The lines required for this are integrated into the housing to a substantial extent and are used for feeding secondary air during the warm-up phase as well as for subsequent exhaust gas return.

Multi-cylinder internal combustion engine

An internal-combustion engine has a rocker lever valve gear equipped with a roller for the cam-controlled actuating of charge cycle valves. Each rocker lever of the rocker lever valve gear has an arm provided with a circular-arc-shaped longitudinal part. Along the longitudinal part, an abutment point can be shifted as a function of parameters of the internal-combustion engine. The resulting changed leverages on the rocker lever vary the valve lift.

Internal-combustion engine comprising a rocker lever valve gear

A metal support catalyst is inserted into the exhaust pipe of a reciprocating piston engine. The catalyst comprises two monoliths spaced away from one another and surrounded by jacket tubes which are centered coaxially with respect to one another with a sliding fit in beads and crimpings of the outer jacket. At an air feeding point between the beads of the outer jacket, air is introduced between the two monoliths in the lower rotational speed range of the engine in order to achieve an afterreaction of the exhaust gases.

Exhaust system of a reciprocating piston engine

An intake pipe system for an opposed-piston or V-engine consists of a U-shaped collector intake pipe at whose two U-legs individual intake pipes are mounted to the two banks of cylinders. In the center between the U-legs, an intake stub is mounted that points in the same direction. In order to achieve an optimal charging effect, the total length of the collector intake pipe amounts to twice the total length of the individual intake pipe that is designed as a curve with respect to space.

Intake pipe system for a reciprocating engine

An arrangement for the actuation of a gas-exchange disk valve longitudinally guided in the cylinder head of a reciprocating piston which is opened and closed against spring force by two alternately periodically energized electromagnets. An armature coaxial to the disk valve together with an armature disk secured at the same is thereby moved to and fro and stresses a cylindrical torsion rod spring clamped-in at the cylinder head by way of a valve lever pivotally connected at the armature. For compensating manufacturing tolerances and thermal expansion, a magnetizable entrainment disk is arranged in the armature disk with axial play which is threadably connected with the stem end of the disk valve and effects the tight closing thereof.

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Tiefenbronn, Germany

Klaus Schneider