Abstract: An injection valve for the injection of fuel during a low pressure phase into a space subjected to pressure fluctuations, which includes an injection nozzle equipped with a nozzle seat that is provided with at least one nozzle aperture; the nozzle aperture is adapted to be covered off by a nozzle needle which is adapted to be lifted and is limited in its lifting movement by an abutment at least in its opening direction; the nozzle seat is thereby movable in the lifting direction of the nozzle needle.

Abstract: A rotary piston internal combustion engine, particularly of trochoidal construction, with a polygonal piston in a multi-arched housing casing in which the piston is provided with combustion space recesses in its piston flanks whereby the ignition takes place into the combustion space recesses; the combustion space recess arranged in a given piston flank is thereby offset with respect to the other combustion space recess or recesses in the other piston flank or flanks.

Abstract: A gripping roller free-wheeling device, with a springy support of the gripping rollers on cross tongues of a cage which is formed by two or more annular members disposed adjacent the gripping rollers; the tongues are stamped out of the sheet metal annular members and are bent off approximately at right angle to the plane of the annular members whereby the form and position of the stamping edge is such that the stamped-out openings which remain in one annular member approximately within the area of half the pitch of the cross tongues, permit the passage therethrough of the bent-off cross tongues of the other annular member.

Abstract: A free-wheeling arrangement in which gripping rollers are arranged between an inner race and an outer race which is equipped with gripping surfaces and short abutment flanks; the gripping rollers are forced into the gripping position by springs which are supported on cross tongues of a cage formed by a sheet metal ring, out of which are punched out the cross tongues; the sheet metal ring of a cage is thereby fixed in the axial direction by the clamping-in action between the outer race and the structural part accommodating the same while an outwardly directed nose portion is provided at least at one cross tongue of each cage to prevent relative rotation, which engages in a cross groove provided in the inner contour of the outer race; a disk covers off the free-wheeling device which serves simultaneously as abutment for the gripping rollers.

Abstract: A cushioned seat, especially a motor vehicle seat which includes a spring box, a cushion shaped-part arranged on the spring box, a cover provided with at least one of rows of stitches (seams), stitched junctions (tucks), fused (welded) connections, and tacks on the seat cushion and possibly also on the backrest; a sleeve (hose) constituted by a band is sewed on or welded on in the longitudinal direction of at least one of the rows of stitches, stitched junctions and fused connections whereby the sleeve is disposed in a recess of the cushion shaped-part and includes a rod-shaped retaining member inserted into the sleeve while means are provided at each point of tacking which securely connect the retaining member with the shaped-part of the cushion.

Abstract: A shock-absorbing front wall for motor vehicles, especially passenger motor vehicles which includes several sections, arranged one above the other, of padded parts projecting into the vehicle interior and permanently deformable by the impact of a vehicle passenger caused by an accident; these sections which are arranged one above the other thereby possess different rigidities and/or thicknesses of the padding layer matched to the impinging body portions; an inflatable gas cushion may also form part of a respective section.

Abstract: An air-cooled turbine blading whose blade consists of a blade core provided with longitudinal ribs and cross ribs and of a blade jacket abutting against the ribs; the jacket is provided with air discharge apertures for the discharge of the cooling air out of the hollow spaces formed by the respective longitudinal and cross ribs; the cross ribs are provided with apertures for the flow of air which are constructed as throttling places.

Abstract: An exhaust gas channel system which is arranged in the cylinder head of an internal combustion engine and in the housing of an exhaust gas turbo charger flangedly connected to an exhaust flange disposed along the side of the cylinder head; the exhaust apertures of each cylinder are thereby each arranged in that half portion of the respective cylinder which is disposed nearest the cross center plane of the cylinder head while the exhaust gas channels are constituted exclusively by cast-in walls of the cylinder head, on the one hand, and of the exhaust gas turbo-charger, on the other; the latter is threadably connected to the exhaust flange of the cylinder head by means of a complementary counter-flange matched to the exhaust flange of the cylinder head.

Abstract: A bearing support for a headrest in a motor vehicle which is pivotal within certain limits after overcoming a constantly effective friction force; a bearing socket which is rigidly connected with the lower area of the headrest member has an essentially triangularly shaped cross section and receives a bearing bolt that is being pressed by a wall subject to an elastic prestress against the remaining walls of the bearing socket.

Abstract: An arrangement for suppressing droning in vehicle bodies, especially for the rear seats of motor vehicles, which includes a tunnel open in the downward direction for the drive shaft and/or for heating and ventilating lines; a sheet metal closure member thereby covers off the tunnel opening, preferably within the area between the forward seat cross bearer and the rear step in the vehicle floor leading to the rear floor; the closure member is secured at the tunnel edges by way of sound absorbing intermediate layers.

Abstract: A clutch disk for motor vehicle main clutches, in which a disk member carrying the friction lining is torsionally elastically connected with a hub member, whereby several springs or spring sets with separate damping devices are provided and the springs are retained in windows of one of the two parts that are torsionally elastically connected with each other and cooperate with larger windows in the other of these two parts; the start of operation of at least one of the damping devices is thereby controlled by a plate-like sheet-metal control member; at least one of the springs or spring sets is thereby retained in the hub portion and the larger windows coordinated to these springs are provided in the lateral sheet metal members connected with the disk member.

Abstract: A four-cycle internal combustion engine with external ignition, which is equipped with an intake or suction manifold and with a separate forced air supply to the exhaust channels; to that end an air supply channel is cast-in adjacent one of the exhaust channels provided in a cast cylinder head, whereby the air supply channel is in communication with a slot extending along one suction pipe side in the longitudinal direction of the engine block; the slot is covered off on its open side by a flange of the intake or suction manifold and is operatively connected with the individual exhaust channels by way of cross bores provided in the cylinder head.

Abstract: A radial seal for a rotary piston internal combustion engine, especially of trochoidal construction, which is constituted by a sealing bar, possibly of multi-partite construction, that is guided in an axially parallel groove of a piston and is forced radially outwardly by springs; the springs are thereby arranged separate from one another in series one behind the other--as viewed in the longitudinal direction of the groove.

Abstract: A system for warning when the liquid level of a air bag gas source as dropped to a predetermined level, such that the gas source would not be adequate to properly inflate the bag upon actuation. The source is mounted to rotate with a steering wheel. An electrically conductive float floats in the liquid such that it always remains at the upper portion of the source. The float comes into contact with contacts in the gas source, when the liquid level drops to the predetermined level, to complete an electric circuit to a signaling device and/or a drive disabling device.

Abstract: A frequency transmitter combined with a differential gear for the transmission of signals to control the slippage of wheels of motor vehicles, which consists of a rotating toothed ring member secured at the circumference of each output shaft of the differential gear, cooperating with a stationary toothed disc that is arranged in the bearing cover of the differential gear between the bearing for the spur bevel gear and a retaining ring or the like providing a seal with respect to the outside.

Abstract: A system for compensating forces acting on a rapidly moving vehicle transversely to its driving direction, such as transverse acceleration forces and yaw angle forces as well as possibly roll movements, by means of torques applied to the steering wheel, in which measured magnitudes of certain degrees of freedom which are detected as second derivatives with respect to time while driving, are combined with each other by an information converter and are converted into a torque which is transmitted in bypassing relationship to the servo-steering device and which signals by its occurrence to the driver the presence of disturbing forces and causes the driver to apply counter-forces; the servo-steering device is thereby so constructed that no torque stemming from the steerable wheels is transmitted to the steering wheel.

Abstract: A suction pipe arrangement for reciprocating internal combustion engines with in-line cylinders, in which a common suction pipe with a fastening flange serving for fastening a throttle valve pipe connection is provided for the cylinders, and in which the tuned suction pipes which extend between the cylinder head of the engine and the common suction pipe are subdivided into two groups; the common suction pipe is thereby arranged in the longitudinal direction adjacent the cylinder row approximately at the height of the cylinder head while the first group of tuned suction pipes which branch off from the left portion of the common suction pipe, lead to the right connecting side of the cylinder head and the tuned suction pipes of the second group which branch off from the right portion of the common suction pipe, lead toward the left connecting side of the cylinder head, with each of the tuned suction pipes extending essentially S-shaped.

Abstract: A telescopic safety steering column for motor vehicles which includes a steering wheel displaceable from its normal operating position relative to the outer steering column under energy absorption by the steering wheel and an energy-absorbing support of the outer column at a fixed vehicle part; this support being provided by an undulated tubular member which is arranged parallel to the center longitudinal axis of the safety steering column and is stable as regards its position while the fixing of the outer column is provided in proximity to the steering wheel by a guide strap which becomes ineffectual when the body of a vehicle passenger impinges against the steering wheel.

Abstract: A mechanism for the actuation of an adjusting device such as, for example, a fresh-air flap in a motor vehicle, in which the adjusting member is operatively connected with at least one rotatable lever and the lever cooperates with an actuating member which is displaced along a rectilinear guide path; the actuating member is constructed fork-shaped for the entrainment of the lever and the entrainment takes place by way of a roller, rotatably supported at the lever, which in one end position of the adjusting member is supported with prestress at a prong of the fork-shaped actuating member.

Abstract: A gas cushion for the protection of the passengers of vehicles, especially of motor vehicles, which is automatically inflatable upon exceeding a predetermined deceleration of the vehicle by means of a gas generator; the gas cushion is accommodated in a hollow space, for example, of the steering wheel or of the instrument panel opposite the passengers whereby the hollow space is closed off by a cover which is adapted to be pushed out when the gas cushion is set into operation; means are thereby provided which open the cover independently of the inflating gas cushion as a function of the response of a sensor serving to set the gas generator into operation.