Abstract: A rotor bearing on the turbine side of a gas turbine is surrounded by a concentric cavity through which fuel is routed from its source to the turbine combustion chamber. The fuel of the gas turbine is used as the coolant for the rotor bearing and at the same time the concentric cavity surrounding the bearing forms a hydraulic "compression" film damping device.

Abstract: A disc-shaped centrifugal weight support (2) for a centrifugal force governor having recesses (3) for accepting knife-edge supported centrifugal weights (4) maintained in an assembled relationship by abutment means such as a ring (7) to form a single-unit mountable assembly.

Abstract: An diesel internal combustion engine with a liquid-cooled cylinder crank casing (1) includes a cylinder head gasket (300) which can be used with either a liquid-cooled cylinder head (200) or an air-cooled cylinder head (100).

Abstract: A cooling circuit (5) for an internal combustion engine in which a throttle (2) is provided upstream of a heat exchanger (10, 11). The throttle (2) equalizes the oil pressure in the internal combustion engine in front of the heat exchangers and insures that this occurs almost independently of the temperature of the oil. By this provision, the heat exchangers can be fabricated with the least expense since the danger of bursting is reduced.

Abstract: A multiple piece piston is provided for a diesel internal combustion engine having a combustion chamber depression in the crown of the piston. In order to achieve a low rate of heat flow into the piston ring area and thus into the cylinder liner which surrounds the piston, a separate piston base or crown surrounding the combustion chamber depression is formed by a ring element made of a material having poor thermal conductivity, and the main body of the piston is made of a material with high thermal conductivity. The heat of combustion is thus conducted mainly axially through the piston main body and absorbed by sprayed cooling oil. The cooling oil, thus heated, can be utilized for heating purposes.

Abstract: A method for achieving a predetermined pressure behavior of the clamping bodies (1) of a free wheel, for which the pressure force can be determined and adjusted in advance. The position of the center of gravity (S) of the clamping body (1) is changed by removing material from the clamping bodies to achieve a predetermined pressure behavior.

Abstract: A rotary mower with at least one rotary cutter unit rotated on a vertical axis by means of a drive shaft which has a first bearing hub secured to its lower end. A cutter disc is secured to the first bearing hub and a second bearing hub is coaxially and rotatably mounted on the first bearing hub. A rigid intermediate disc is secured to the second bearing hub so as to be disposed beneath the cutter disc. A skid disc on a third bearing hub is disposed coaxially beneath the intermediate disc in such a way that its central portion can be axially adjusted by means of an adjustment device to change the height of cut. The skid disc is elastically flexible with its outer rim engaging the outer rim of the intermediate disc in all positions of height adjustment.

Abstract: An internal combustion engine with a block cylinder head 7 and a fluid-cooled cylinder liner 1 has a cooling chamber between the cylinder liner 1 and the crankcase 2. The cooling chamber includes at least two partial cooling chambers 9a, 9b which are connected only by a connecting channel 8, and wherein the first partial cooling chamber 9a, which is adjacent to the cylinder head 7, is open in the direction of cylinder head 7 and passes over into a slot-shaped annular chamber 10 in cylinder head 7. A cooling arrangement for a cylinder liner for use with block cylinder heads is provided in which the cooling adjusts itself according to the quantities of heat which need to be removed, i.e., the thermal load is more uniformly carried over the entire axial length of the cylinder liners.

Abstract: Apparatus and method for injecting fuel into at least one self-igniting internal combustion engine (1), wherein the injection process is divided into a preliminary injection and a primary injection. The total length of time of the injection is relatively brief in spite of the dual injection. In order to accomplish this, the preliminary pressure generated by a preliminary pressure pump is at least 10 bar and the ratio of the high pressure to the preliminary pressure is less than 80.

Abstract: An ignition device (2) for an air-compressing internal combustion engine which is cooled only to a small extent by the fuel which impacts upon it. As shown in FIG. 3, a heat reservoir in the form of at least one incandescent helix (15, 16) is inserted between an incandescent rod (6) and a casing (10) which surrounds the helix and the rod.

Abstract: A fuel injection system for a diesel engine in which an electromagnetically actuated valve determines the initiation and conclusion of injection. A valve of this sort consists of a primary slide valve component 3 which, in its closed position, makes a seating engagement with a tapered valve seat 5 to close a connecting channel 16 between the injection line 10 and a dumping passage 12. The primary valve component is moved to its open position by an electromagnetically actuated impact bolt 40. In order to avoid problems associated with seat valves, a second electrically operated valve component 6 is provided in a second connecting channel 25 between the high pressure channel 7 and the dumping channel 12.

Abstract: An air-cooled block cylinder head adapted for mounting on an open-deck cylinder casing of an internal combustion engine. In order to maintain a tight seal of the cylinder head to the cylinder casing, the combustion chamber floor of the cylinder head is designed to be deflected in a manner that does not adversely affect the sealing of the cylinder head to the cylinder casing. This is achieved by designing the cooling chamber side of the cylinder head floor with a gradually changing floor wall thickness in the area directly above the cylinder combustion chamber. In the preferred designs, the combustion chamber floor is designed to be concave or convex. The cylinder head also includes features for effectively cooling the combustion chamber floor and for isolating the exhaust conduit.

Abstract: A gas turbine drive (1) is presented, for which an auxiliary device power unit (16) can be coupled alternately with the low-pressure rotor (2) or the high-pressure rotor (3).

Abstract: A power takeoff mechanism for a farm tractor with two interchangeable power takeoff shafts which can be driven at different speeds and are connected by means of annular flanges of different diameters with a driving flange on the end of an output shaft wherein a pawl is pivoted near the driving flange and is connected to a clutch lever of the gear shifting mechanism whereby the pawl must be pivoted to a predetermined position when one of the power takeoff shafts is installed, thereby preventing the clutch lever from being operated in a manner to select an inappropriate speed for the installed power takeoff shaft.

Abstract: An ignition device for an air-compressing internal combustion engine which, in addition to reducing electrode erosion, requires low energy consumption. The ignition device includes a high-voltage spark plug (2) to which a casing (6) is connected, a rod (8) inserted coaxially into the casing (6) and an incandescent helix (11) wound around the rod (8).

Abstract: An adjustment mechanism for changing the timing of fluid flow to or from the combustion chamber of an internal combustion engine wherein an axially displaceable support body 15 displaces a plunger 10 tangentially relative to a camshaft 2 which reciprocates the plunger 10.

Abstract: An aerodynamic slide bearing which uses air as a lubricant. A shaft is supported on substructures distributed about its circumference, which exhibit predetermined elasticity and dampening behavior. A dampening chamber is located between each substructure and an outer casing to give the aerodynamic slide bearing requisite dampening characteristics. Because of the modular design, the aerodynamic slide bearing is relatively insensitive to shifting of the shaft.

Abstract: A device for regulating the delivery timing of injector pump elements is presented, whereby the injection pump elements are actuated by a camshaft of the internal combustion engine, said camshaft also being simultaneously employed to operate the intake and exhaust valves. All the cams are nonrotatably secured to the camshaft and the entire camshaft is rotatively adjusted relative to the crankshaft by a delivery timing regulator.

Abstract: The device for mowing and conditioning crops including a plurality of juxtaposed mowing rotors and a conditioner rotatably arranged around a horizontal axis immediately behind and extending substantially across the width of the mowing rotors. The conditioner includes a shaft with left and right pitched auger flights which join at approximately the longitudinal center of the shaft so that the cut hay is directed into a single narrow swath in the center behind the conditioner. Conditioning tools are secured along the outer edge of the auger flights and the conditioner is rotated in a direction causing an overshot movement of the hay from the mowing rotors.

Abstract: A gas turbine engine with an electrically driven fuel pump unit wherein the rotor of the gas turbine engine operates an electric generator. The generator supplies two separate circuits. One circuit serves in the customary way to supply electricity for the flight system of an airplane or missile in which the gas turbine engine is used, while the second circuit is connected to an electrically driven fuel pump unit for the purpose of driving the latter. The circuit which is provided for the fuel pump unit can be at a higher electrical voltage than the circuit which is connected to the flight system. Mechanical gear units, which would otherwise be necessary, can be omitted; and the electrical conduit cross sections necessary for delivering energy are extremely small in cross section and of relative light weight which is advantageous in airplane and missile applications of the gas turbine engine.