摘要:
Vibration damper includes a tubular body to which an external part, which acts as a stop, is fastened. A component such as a steering knuckle, which is supported against the stop, is also fastened to the tubular body. When a normal load on the component is exceeded, a deformation area allows the component to shift on the tubular body.
摘要:
For the individual drive of a wheel of a motor vehicle, a planetary transmission can be combined into a single module with a motor. The planetary transmission has a sun wheel which on a motor shaft of the motor, a ring gear and a planet carrier with planet wheels which are rotationally mounted on journals. The planet carrier and the ring gear are non-rotationally connected to a support part which simultaneously forms the transmission housing, or to a driven shaft part which is rotationally mounted on the support part. The planet carrier is designed as a shaped sheet metal and comprises a sheet metal base wall which runs axially perpendicular to the axis of rotation of the planetary transmission, into which sheet metal base wall the journals are shaped in a cup shape. Projecting in the same direction as the journals from the outside circumference of the sheet metal base wall is a circumferential wall in which there is a toothed portion for the non-rotational coupling of the planet carrier with the support part or the driven shaft part. The planet wheels are held by a ring-shaped positioning disc on the shaped sheet metal part. Projecting axially from the outside circumference of the positioning disc are webs which are engaged between neighboring planet wheels, and which are welded to the sheet metal base wall. The planet carrier can be manufactured easily, and the forces which are exerted on it during operation are essentially equalized or compensated.
摘要:
In a drive arrangement of a motor vehicle in which the wheels of the motor vehicle are driven by separate electric motors and the electric motors are powered via a d.c. voltage intermediate circuit by a generator arrangement driven by an internal combustion engine, the speed of the internal combustion engine and individual wheels is sensed by speed sensing circuits which respond to pulse signals of commutator circuits of the generator arrangement and electric motors. The commutator circuits generate the pulse signals depending on position transmitters which are arranged at the generator arrangement and at the electric motors. In this way, the speeds can be sensed with great accuracy exclusively on the basis of already existing components of the drive arrangement. In particular, the speed sensing means cooperate with an antilock braking system (ABS) and a drive slip regulating system (ASR).
摘要:
A motor vehicle including a unit (2) consisting of an internal combustion engine, a generator supplying current to electric motors (12, 16) coupled with driving wheels (14, 18) over an energy distributor/power electronics system (8) and a battery which is supplied with energy by the internal combustion engine/generator unit via the energy distributor (2). An electronic control system (20) controls the energy distributor (8) as a function of a driving signal according to boundary conditions, for example, according to the least possible specific fuel consumption. A temporary increase in the power required to drive the motors can be supplied by the battery (22). In the event that the increase in power lasts for longer periods, the internal combustion engine, which as far as possible operates in a state that ensures low fuel consumption, is accelerated in order to cover the demand for high power. At the maximum output of the internal combustion engine, the energy stored in the battery (22) supplies the power for the additional thrust.
摘要:
A mobile paving machine which may, with minor modification, be employed either to distribute material along the path of movement of the machine or in a region which is laterally offset to one side of the motion path. In order to spread material in a laterally offset region, which may correspond to a break-down lane being formed along the side of a travel lane, a tiltable secondary skip is installed above the primary skip to which paving material is normally supplied. A scraper is mounted from an extension of the distribution beam of the machine to controllably disperse material discharged through an end of the secondary skip when the loaded secondary skip is angularly inclined to cause gravity induced flow of material into the lateral region.
摘要:
The control device for a motor-vehicle friction clutch incorporates an electric motor which drives an output member in a substantially translational motion through a motion conversion crank gear unit designed as a worm gearing. This axis of a worm of the crank gear unit and the resultant drive force exerted on the output member by the assigned worm gearwheel lie in a common plane normal to the axis of rotation of the worm gearwheel. A spring-type energy accumulator supports the drive motion of the electric motor in the release direction of the clutch and is tensioned in the engagement direction by the electric motor. In this way a comparatively small-sized electric motor can also be used for rapid release movements.
摘要:
For controlling a central locking installation and/or theft alarm of a motor vehicle a switch lock installation is provided which comprises at least one lock with mechanical tumblers for the mechanical locking and unlocking of a door or a bonnet of the motor vehicle. The tumblers form a first key secret. The key which blocks the tumblers carries an electrically, magnetically or optically readable information carrier for a second, operationally variable key secret. A reading device detects the information of the second key secret in a position in which the mechanical tumblers of the lock are released. If the key is moved in the opening direction of the lock, a control circuit compares the information read by the reading device with an ideal information stored in a memory circuit and controls the central locking installation and/or theft alarm accordingly. If the key is moved in the closure direction of the lock, then the information of the second key secret read by the reading device is taken as new ideal information into the memory circuit.
摘要:
The torsional vibration damper which is suited in particular for the clutch disk of a motor vehicle friction clutch has two damper parts (13, 17) rotatable relative to one another around a common rotational axis (7) over a defined rotational angle, which damper parts (13, 17) together enclose at least one, preferably, at least three, damper chambers (33, 35) sealed outwardly and at least partially filled with a hydraulic fluid. A roller body (37) is arranged in each damper chamber (33, 35) which roller body (37) divides the damper chamber (33, 35) in the circumferential direction into two spaces (39, 41) whose relation of volume changes during the relative rotation of the damper parts (13, 17). A throttle connection (47) between the two spaces (39, 41) makes possible the compensation of the hydraulic fluid as a by-pass connection to the roller body (37). The damper chamber is formed by means of two recesses (33, 35) located opposite one another and with volumes varying from one another in faces (29, 31 ) of the damper parts (13, 17), which faces complement one another, adjoin one another on opposite sides and move relative to one another during relative rotation. The circumference of the roller body (37) is in a friction-locking or form-locking drive rotational contact with mutually oppositely located faces (43, 45) of the two recesses (33, 35) and rolls without slipping in the recesses. The roller body is formed particularly resilient and is fixed in the recesses (33, 35) under its own spring pretensioning. The roller faces (43, 45) of the recesses (33, 35) are so formed that an increasing pretensioning force and thus a restoring moment acting contrary to the torsional torque results as the torsional angle increases. Such a torsional vibration damper acts hydraulically as well as a spring damper and permits relatively large torsional angles.
摘要:
Method for adjusting the throttling action of a valve comprising a valve body with at least one through-channel for a working medium, where the working medium is throttled by at least one valve disk which covers the throttle channel. By making use of the effect of the heat of a laser beam to change the elastic pretension of the disk, deviations from a predetermined throttling action are minimized. The laser beam is used to cause partial local melting in the minimum of one valve disk, the heat thus introduced having the effect of working at least one defined bending axis into the disk.
摘要:
Filling valve for a gas bag installed in a space bounded by rigid walls, where the forces of a liquid medium, which is under pressure and which flows into and out of this space, act on this space. The gas bag serves as a compensation space, is filled with gas, and can be filled through a filling valve, which has an access channel aligned with an opening in the rigid wall. The access channel is located in a connector part connected to the gas bag, the connector part also being connected to a guide part resting against the inside surface of the rigid wall, the access channel being in effective connection with the opening in the rigid wall via this guide part.