Abstract: The invention relates to a current generator unit consisting of a generator and reciprocating engine as the drive system, in particular consisting of a synchronous generator and a diesel engine and comprising a cooling device for the common cooling of the generator and reciprocating engine. Said unit comprises a fan wheel (2) that axially aspirates the cooling air (L) on the motor side and evacuates the latter radially and that has a first passage (49) located in the radial exterior zone of the blades (4) and a second passage (50) located radially inside the blades (4). A small portion (S2) of the cooling air (L) (“generator cooling air”) is fed exclusively to the generator on the motor side via the first passage (49) and is evacuated via the second passage (50) and a predominant portion (S1) of the cooling air (L) (“motor cooling air”) is fed to the reciprocating engine.

Abstract: The invention relates to a method and system for assembling an electricity generating unit consisting of a generator and a reciprocating engine as the drive, in particular for centring an internal stator that is positioned inside an external rotor with an air gap. Said method comprises the following steps: mounting the external rotor onto the drive motor and connecting the rotor to the drive system of said motor; inserting at least two centring bolts, which are offset in the peripheral direction, into centring grooves that are provided in the rotor/stator for partially receiving, (when viewed from a radial direction), said centring bolts that bridge the air gap; centring the stator in the rotor by inserting said stator along the centring bolts inside the rotor; fixing the stator to the generator housing and fixing said generator housing to a connection housing of the drive motor, removing the centring bolts from the air gap.

Abstract: The invention relates to a device for automatically regulating the voltage of a generator according to the load current. Said device comprises a first couple of clamps which can be connected to a couple of generator clamps carrying the load current and taps a first generator voltage from the generator coil, a second couple of clamps which can be connected to the couple of generator clamps and picks up a second generator voltage that is smaller than the first generator voltage from the generator coil, a third couple of clamps that supplies a control voltage to a control circuit which is provided with a control relay (9) having a switch for switching the connection between the couple of generator clamps and the first couple of clamps or the second couple of clamps.

Abstract: In a power generator unit composed of a drive motor and a generator, particularly a diesel engine and a synchronous generator with a stationary rotor winding (28) and permanent magnets (35) arranged in the rotor (29), for excitation of the generator, its rotor (29) forms the flywheel of the diesel engine, as an external rotor, and its stator (11), arranged within the rotor, carries the rotor winding (28).

Abstract: In a power generator unit composed of a generator and a piston internal combustion engine as the drive, particularly a synchronous generator and a diesel engine, with permanent magnets arranged in the rotor of the generator, in the area of the poles, for its excitation, and a rotor winding (28) in the stator, holder pockets (34) that are open at least on one side are formed in the pole regions of the rotor (29), in the axial direction, which border on the air gap (33) formed with the stator (11) with a cylindrical circumference wall (50); the permanent magnets of the pole regions are each formed by a plurality of magnet elements (35), which are arranged next to one another within the holder pockets (34) in the circumference direction.

Abstract: In a power generator unit composed of a generator and a piston internal combustion engine as the drive, the rotor is driven by the crankshaft of the diesel engine, and carries permanent magnets to excite the generator while the stator of the generator is arranged within the rotor and carries the rotor winding of the generator. The stator of the generator is divided, for the purpose of voltage regulation, into an outside stator part that forms an air gap with the rotor, and an inside stator part that forms a control air gap with the outside stator part that surrounds it, and is mounted to rotate, relative to the outside stator part, in such a manner that the geometry of the control air gap changes with the rotational position, and that the rotation takes place as a function of the variations in the terminal voltage of the generator.

Abstract: In a power generator unit composed of a drive motor and a generator, particularly a diesel engine and a synchronous generator with a stationary rotor winding (28) and permanent magnets (35) arranged in the rotor (29), for excitation of the generator, its rotor (29) forms the flywheel of the diesel engine, as an external rotor, and its stator (11), arranged within the rotor, carries the rotor winding (28).

Abstract: In a power generator unit composed of a generator and a piston internal combustion engine as the drive, particularly composed of a synchronous generator and a diesel engine, the rotor (29), as an external rotor, is driven by the crankshaft (1) of the diesel engine, and carries permanent magnets (35) to excite the generator; the stator (11) of the generator is arranged within the rotor (29) and carries the rotor winding (28) of the generator. In this connection, the stator (11) of the generator is divided, for the purpose of voltage regulation, into an outside stator part (19) that forms an air gap (33) with the rotor (9), and an inside stator part (21) that forms a control air gap (23) with the outside stator part (19) that surrounds it, and is mounted to rotate, relative to the outside stator part (19), in such a manner that the geometry of the control air gap (23) changes with the rotational position, and that the rotation takes place as a function of the variations in the terminal voltage of the generator.

Abstract: In a power generator unit composed of a generator and a piston internal combustion engine as the drive, particularly a synchronous generator and a diesel engine, with permanent magnets arranged in the rotor of the generator, in the area of the poles, for its excitation, and a rotor winding (28) in the stator, holder pockets (34) that are open at least on one side are formed in the pole regions of the rotor (29), in the axial direction, which border on the air gap (33) formed with the stator (11) with a cylindrical circumference wall (50); the permanent magnets of the pole regions are each formed by a plurality of magnet elements (35), which are arranged next to one another within the holder pockets (34) in the circumference direction.

Abstract: A fuel injection pump for an internal combustion engine includes at least one pump piston movably disposed in a piston sleeve which piston sleeve is fitted in a pump housing. A first arrangement associated with the piston draws fuel through suction ports into a working chamber of the pump during a piston suction stroke. A second arrangement associated with the piston cuts off a connection to a suction side of the pump and thereafter initiates a delivery from the working chamber to an injection nozzle, which delivery is divided into two phases. The second arrangement is operable during a piston delivery stroke. A third arrangement controls the phases and includes the suction ports and an inside edge of the piston sleeve. The inside edge of the piston sleeve is provided on a planar end face of a guide bore of the sleeve and faces the working chamber.

Abstract: A fuel injection pump for self-ignition internal combustion engines, comprising at least one pump piston which is movably arranged in a piston sleeve and, during its stroke, in one direction draws fuel from the suction side into the working chamber of the pump and in the other direction of travel first cuts off the connection to the suction side and then commences delivery, which is divided into pre-injection and main injection, from the working chamber to the injection nozzle.

Abstract: A starting handle for internal combustion engines. A hand crank and a starting shaft are connected to an appropriate element of the engine to be started. A driving mechanism is provided between the hand crank and the starting shaft, so that when the hand crank is turned in the starting direction, the hand crank drives the starting shaft and thereby the engine element. The driving mechanism is released in the event of kickback of the starting shaft and movement thereof in the direction opposite to the direction of starting. A weighted element is provided independent of the engine and is mounted coaxially with respect to the starting shaft. The weighted element is held by gravity in a vertical position and, in the event of kickback, is restrained from movement from the vertical to cause the driving mechanism between the hand crank and the starting shaft to be released.

Abstract: A screw-in fastener for an anchor embedded in a precast concrete element includes a coupling member, to which a transport anchor is applied, a threaded pin insertable into the anchor positioned within the concrete element, and a supporting plate, from which the pin outwardly extends. The supporting plate has a circular end face supported against the upper surface of the concrete element.

Abstract: A mechanism for actuating valves of an internal combustion engine includes a rotatably supported shaft having a cam surface thereon and a movably supported cam follower slidably engaging the cam surface at a first location. A second cam follower member slidably engages the cam surface at one of a second and a third location thereon when the shaft is respectively rotating in one of a first direction and a direction opposite thereto, the second and third locations being spaced from the first location in opposite directions by equal angular distances. The first and second cam follower members are each operatively coupled to a respective valve of the engine.

Abstract: A body to be picked up is provided with a bolt having a relatively narrow shaft embedded in and projecting from the body and a relatively wide head on the shaft spaced from the body. This body is picked up by a device having a shackle provided with a crosspiece defining a lift eye to which is connected a grab cable and a pivot eye. A pickup member is pivotal on the pivot eye of the shackle about a pivot axis and has a generally radially extending actuation arm and an axially elongated and outwardly open pickup slot lying generally in a plane perpendicular to the axis and having a relatively wide end permitting radial passage of the head into and out of the slot and an angularly opposite relatively narrow end internally sufficiently wide to accommodate the head but externally insufficiently wide to permit radial passage of the head out of the slot.

Abstract: An internal combustion engine has a reservoir containing oil which is circulated through passageways in the engine by an oil pump to lubricate and cool the engine. A tube has a spiral portion located in the reservoir and a cooling liquid, preferably water, is pumped through the tube to cool the heated oil in the reservoir. The water is thus heated and subsequently enters and discharges this heat in a heat receiver which is preferably part of a home-heating system. In a preferred embodiment, the heating system includes a heat pump which is operatively coupled to the heat receiver, the compressor of the heat pump being driven by the engine. In another preferred embodiment, a portion of the engine exhaust pipe extends through the reservoir so that heat from the gases passing through the pipe is at least partially transferred to the oil in the reservoir.

Abstract: A single cylinder internal combustion engine has a piston which drives a crankshaft and flywheel through a connecting rod and has a counterweight arrangement which balances forces produced by the moving engine elements. The counterweight arrangement includes a weight on the crankshaft and two weights on the flywheel which fully balance the forces produced by rotating motion of the engine parts and partially balance the forces produced by reciprocal motion of the engine parts. Two balance shafts are provided which are parallel to and driven synchronously with the crankshaft. The balance shafts have respective first weights thereon which complete the balance of forces produced by the reciprocating motion of engine parts and have respective second weights thereon which balance the moment of the first weights with respect to the axis of the cylinder.

Abstract: A drive unit for a compressor which is used in a heat pump. The drive unit includes a fuel-injection internal combustion engine which is coupled with the compressor and a starter associated with said engine and is fed from multiphase electric power supply lines. The starter is connected to the electric power supply by means of a switch. The starter is constructed as an electromagnetic drive motor having a stator and a rotor secured to the engine crankshaft and serving at least partly as a flywheel. The coil windings on the stator are fed current from the power source.

Abstract: A heating system for a building utilizing a heat pump having a condenser which is driven by an internal combustion engine. The internal combustion engine drives an additional aggregate, such as a brake, for the purpose of generating additional heat which is added to the main heat carrier in the heating network in the building. The circulating system for the additional heat generating aggregate is self-contained and separate from the heating network of the building.

Abstract: To compensate for positional variations during assembly or in use between an engine body or crankcase and a sound-proofing shell enclosing the same, use is made of interposed spring arrangements including a load-setting means.