Robert Boschgmbh

Ernst Imhof

Gunther Schmid

Iwan Komaroff

Werner Grunwald

Helmut Reum

Kurt Schmid

Thomas Frey

Klaus Dobler

Michael Huebel

Bernhard Kaczynski

Rolf Mayer

Gerhard Auwarter

The motor fuel delivery unit for delivering motor fuel includes a delivery pump (,) and an electric motor (,) for driving the delivery pump (,). The delivery pump (,) includes a housing (,) provided with a pump chamber (,) and an impeller wheel (,) arranged in the pump chamber (,). The electric motor (,) includes a stator (,) provided with an armature winding (,) and a rotor (,) provided with permanent magnets (,). The electric motor (,) is brushless and consists of the impeller wheel (,) of the delivery pump (,). The stator (,) has an inner ring face consisting of a peripheral wall (,) of the pump chamber (,).

Motor fuel delivery unit

System for injecting fuel into combustion chambers of an internal

Apparatus for injecting fuel into combustion chambers

An apparatus for the injection of fuel into combustion chambers, in particular of self-igniting internal combustion engines, having an injection nozzle (10) and a subsequent glow body (20), which has a conduit (30) surrounded by heatable walls (26) and serving for the passage therethrough of the injected streams. At least one lateral opening (32) discharges into this conduit (30), the opening preferably communicating with a region (46) of the combustion chamber (36) remote from the core region of the ignition. The air aspirated through the lateral opening (32) warms up and enters into the peripheral zone of the injected streams, where the result is an air-fuel ratio and temperature conditions which are very favorable for ignition. Less heat energy is required to initiate the ignition than in the known apparatus of this general type. By eliminating the conventional glow plugs, which interrupt the movement of air in the combustion chambers, increased power is attained and the emission of soot is reduced sharply.

Apparatus for injecting fuel into combustion chambers of internal

Apparatus for injecting fuel into a secondary flow of combustion air

Device for fuel injection in combustion chambers

A device for injecting fuel in combustion chambers, especially for self-igniting internal combustion engines, is proposed, in which a fuel injection nozzle, by aspirating air through an air guide device in the manner of a jet pump, generates a fuel spray that is surrounded by an air envelope. This air-enveloped fuel spray is directed through a heating element, the heat generation of which is distributed in such a manner over its length that a desired heating profile along the heating element is produced. The type of heating profile depends not only on the properties of the material making up the heating resistor but also on its structural makeup and its electrical bonding. A highly suitable material for the heating resistor is molybdenum silicide (MoSi.sub.2).

Device for injecting fuel in combustion chambers

A cooling system and a method of operation of a cooling system for an internal combustion engine in which the coolant is a heat-retaining storage medium capable of being super-cooled. A suitable medium is found to be, especially, sodium acetate trihydrate mixed with water. The coolant according to the invention may be caused to solidify and crystallize just prior to an intended engine starting, thereby releasing the latent heat of fusion and preheating the engine. The preheating of the engine results in reduced run-up times, a reduced degree of fuel enrichment during cold starting, a decrease in toxic exhaust components during cold starting and decreased water and tear. The invention provides for valves in the cooling system which isolate the engine from the remainder of the cooling system until the coolant has been reliquified completely.

Cooling system for, and method of cooling an internal combustion engine

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Munchingen, Germany

Ernst Imhof