Motorenfabrik Hatz-gmbh & Co. Kg

Motorefabrik Hatz Gmbh & Co. Kg

Guenter Kampichler

Erich Eder

Herbert Geier

Albert Madl

Theodor Tovar

Udo Griebl

A device for pivotal connection of piston ( ) and connecting rod ( ) in a reciprocating-piston engine comprises a connecting member ( ) integral with the piston, with a bearing surface ( ) for a connecting-rod eye ( ), which together with the bearing surface ( ) forms the pivot bearing of the connecting rod ( ) on the piston side; the connecting member ( ) is provided at least in the region of the bolting with planar contact faces ( ), which together with mating faces ( ) on the inside of the piston form a common dividing plane ( ); the connecting member ( ) is fixed on the side of the piston ( ) facing away from the combustion chamber by means of one or more connecting bolts ( ) passed through bores in the piston head ( ); the bearing surface ( ) is much broader toward the straight portion ( ) of the connecting rod than on its side facing the piston ( ).

Piston unit

The invention describes an oil-pickup system for an internal combustion engine, especially a one-cylinder diesel engine with at least three oil-pickup tubes (,), which are in communication with the oil pump via a suction tube (,) and which are disposed in the oil pan (,) in such a way that, if the internal combustion engine is in inclined position, intake of air is prevented by the control valves associated with the oil-pickup tubes.

Oil pickup system for an internal combustion engine, notably a single-cylinder diesel engine

An automatic decompression system for an internal combustion engine, especially a one-cylinder diesel engine, with at least one outlet and one inlet valve, which are activated by a camshaft (,) with at least one cam (,), wherein the outlet valve is lifted during starting to reduce the cranking resistance, wherein there is provided for lifting the outlet valve at speeds below a switching speed for changeover from decompression to compression a fully automatic lifting device, which engages in the cam (,) of the outlet valve and effects lifting of the outlet valve from the valve seat, wherein the lifting device is equipped with a bow-shaped member (,), pivoted in articulated relationship, disposed between cam (,) and a cam disk (,), which bow-shaped member has two articulated arms (,) and a crosspiece (,) joining them, and which at speeds below the switching speed occupies in the cam plane an engaged decompression position, in which it projects beyond the cam base circle, and which can be disengaged into a neutral position in the cam-disk plane when the switching speed is reached, is provided for the purpose of speed-dependent control of the engagement and disengagement process with at least one flyweight (,), which is subjected by a spring (,) to radially inward pressure and which is coupled flexibly with the bow-shaped member.

Automatic decompression system

The invention relates to a pump nozzle (,) for injecting fuel into an internal combustion engine, especially a single cylinder diesel engine, comprising a piston foot (,), a pump cylinder (,), a pump piston (,), an intermediate disk (,), and an injection nozzle with a pressure spring (,) a pressure spring plate (,) and a nozzle needle (,). The inventive pump nozzle has a reduced construction length by virtue of the pressure spring (,) being offset to the side of the nozzle needle axis.

Pump nozzle

A regulating device (,) for controlling the delivery flow in a motor-fuel injection pump is provided with a pump cylinder (,), a pump piston (,) with longitudinal groove and control edge, a piston foot (,) and an adjusting sleeve (,), the piston foot (,) being accommodated in the adjusting sleeve (,) in such a way that it is freely movable in axial direction. The adjusting sleeve (,) has an elongated thin-walled tubular profile (,), a regulating turning-lever plate (,) joined to the tubular profile (,), and a regulating turning lever (,).

Regulating device and method for manufacturing same

This invention concerns a fuel injection system for an internal combustion engine in which a cut-off is provided to interrupt the fuel supply. The fuel injection system has a pump element with a suction bore (3) wherein the suction bore (3) of the pump element can be closed by means of a valve body (70 arranged on a flexible tappet to interrupt the fuel supply.

Engine shut-off for an internal combustion engine

A venting device, with a vent valve (2), for the crankcase (1) of an internal combustion engine, especially for a one-cylinder diesel engine, is provided with a duct (9) for the gas-oil mixture downstream from the vent valve (2) in flow direction, said duct ending in an oil trap (3), a connection (4) via which the gas can reach the atmosphere being provided downstream from the oil trap (3).

Venting device for the crankcase of an internal combustion engine

The invention relates to an internal combustion engine, in particular a one cylinder diesel engine, with a fuel injection system. The engine is provided with a mechanical control device comprising an actuator and a control element for automatic interruption of the fuel supply in case of a lack of lubricating oil. The control circuit actuator is equipped with a vacuum advance (15) with a membrane (12) for the pressurization of a closing tappet (10), in which a pressure chamber, formed by the membrane (12) and the vacuum advance (15), is open to the atmosphere. In addition, the control conduit (18) is equipped with a connection (20) on the side of the oil circuit and a connection (22) on the side of the crankcase, in order to produce a depression the control unit.

Device for interrupting the fuel supply

Fuel injection pump for internal combustion engines, in particular

Internal combustion engine and method for manufacturing same

A particularly reasonably priced cylinder liner (1) for combustion engines, especially for one-cylinder diesel engines with a cylinder (2) cast on the crankcase, is produced from steel by deep drawing or deformation by compression and inserted with a tight sliding fit into the cylinder bore (12).

Combustion engine

A rewind or recoil starter for an internal combustion engine which is adapted to be coupled to the engine element to be started, and which is returned to its resting position by a rewind or recoil device after manual operation of its actuating structure and after the engine has started. A safety device in the starter is provided which, in the event of an unsuccessful starting operation and upon kick-back of the engine element against the starting direction, uncouples the actuating structure of the starter from the back-kicking engine element. The starter is equipped with a driven member rigidly seated on the engine element to be started, and with a driving member which, during starting, is driven by way of the actuating structure to drive the engine element in the starting direction. The safety device includes a fixedly mounted, spring-loaded decoupler pawl which does not affect the driving engagement between the driven member and the manually operated driving member when the elements of the starter are in their resting positions and during their starting movement, whereas, upon kick-back of the engine element to be started, the decoupler pawl is brought into a decoupling position by an element which then kicks back, and thereby releases the driving engagement.

Starter having a manual drive for internal combustion engines

A fuel injected internal combustion engine which drives a device such as a vehicle which is susceptible to sudden undesirable acceleration or deceleration is provided with injection pumps having fuel quantity control members which are coupled to an activator which in turn effects simultaneous adjustment of the control members under the control of an operator. At least one mass is coupled to the activator and prevents or compensates for undesired forces tending to effect movement of the control members as a result of accidental acceleration or deceleration of the device.

Growing community of inventors

Ruhstorf, Germany

Guenter Kampichler