Daimler-benz Ag

Gerhard Wolters

Horst Bergmann

Paul Strifler

Wilhelm Wagner

A self-igniting internal combustion engine which includes at least one piston having a rotational symmetrical piston trough arranged therein. The piston trough has a conical side wall and an inlet port which is less than a largest diameter of the piston trough. An eccentrically arranged injection nozzle is provided for injecting fuel in a wall wetting phase into the piston trough. At least one fuel jet from the injection nozzle impinges approximately in a plane centrally onto the side wall. To avoid a wetting of the bottom of the trough with still liquid fuel, an annular bead is provided having a sharp annular bead edge. A collar is arranged at the neck of the inlet port, with the collar constituting a discontinuous transistion to the inlet port and causing in the area of the collar a swirl formation counteracting the wall-wetting fuel rising toward the inlet port.

Self-igniting internal combustion engine with a rotationally symmetrical

A water cooled internal combustion engine, especially for utility vehicles operated with a gas which is stored in a liquid condition in a fuel tank. The internal combustion engine includes a cooling water cycle containing a thermostat, a cooler and a water pump. A fuel vaporizer is heated by the cooling water cycle of the internal combustion engine with an air intake preheater likewise being heated by the cooling water cycle. A throttle valve is arranged between the air/gas mixer and working cylinders of the engine. An externally heated water cycle is additionally provided in such a way that the externally heated water cycle is connected functionally in parallel with the cooling water cycle. The water cycles are joined by a conduit with a thermostatic valve being arranged within the conduit so that the two cycles can be switched in such a manner than, in dependence upon the temperature, water from the externally heated water cycle and/or from the cooling water cycle is conducted through the fuel vaporizer and intake air preheater. The externally heated water cycle, when the internal combustion engine is not yet warmed up for operation, and the cooling water cycle, when the internal combustion engine is warmed up for operation, are switched on with respective priority.

Internal combustion engine, especially for trucks driven with gas-stored

A seal of the upper area of a wet cylinder liner with respect to the crankcase of a reciprocating piston internal combustion engine and a method of making the same, whereby a liner collar of the cylinder liner rests with a collar surface on a support surface at the crankcase; a thin layer of silicon rubber or of other deformable sealing material is applied between the collar surface and the support surface either prior to or during the pressing-in operation of the cylinder liner into the crankcase by applying such a quantity of the silicon rubber or deformable sealing material into an annular space formed by a recess in the cylinder liner underneath the liner collar and/or by a chamfer at the crankcase, that toward the end of the pressing-in operation the sealing material is pressed between the collar surface and the support surface and forms thereat a layer.

Seal of the upper area of a wet cylinder liner

An air-compressing four-cycle internal combustion engine with direct fuel injection, especially for the drive of motor vehicles, in which a first injection valve is provided for injecting fuel into a combustion space which is so constructed and arranged that good outputs with favorable fuel consumption are attainable; in lieu of the first injection valve, a second injection valve can be selectively operated which is fed with fuel from a second injection pump or from a separate pump plunger and which is so constructed and arranged that low combustion noises are achieved without regard to output and consumption.

Air-compressing four-cycle internal combustion engine with direct fuel

A traffic system, especially a public local passenger traffic system, with self-propelled trackless steerable vehicles travelling on special lanes. Beam reflectors, especially sound reflectors are arranged along the entire length of the lane true to the shape of the road transmitting and receiving apparatus, especially sound echo sounding or radar apparatus, are provided in each vehicle which influence the vehicle steering system to provide an automatic vehicle cross guidance in accordance with the contact-free distance detection of the reflectors.

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Gaggenau, Germany

Gerhard Wolters