Abstract: A powertrain system for a hybrid vehicle. The hybrid vehicle includes a heat engine, such as a diesel engine, and an electric machine, which operates as both an electric motor and an alternator, to power the vehicle. The hybrid vehicle also includes a manual-style transmission configured to operate as an automatic transmission from the perspective of the driver. The engine and the electric machine drive an input shaft which in turn drives an output shaft of the transmission. In addition to driving the transmission, the electric machine regulates the speed of the input shaft in order to synchronize the input shaft during either an upshift or downshift of the transmission by either decreasing or increasing the speed of the input shaft. When decreasing the speed of the input shaft, the electric motor functions as an alternator to produce electrical energy which may be stored by a storage device.
Type:
Grant
Filed:
December 1, 1997
Date of Patent:
December 28, 1999
Assignee:
Chrysler Corporation
Inventors:
Robert E. Lawrie, Richard G. Reed, Jr., David R. Bernier
Abstract: A transmission generates the travelling and PTO outputs of a farm tractor. The transmission can easily generate the travelling output of a 15-step forward movement and a 9-step backward movement and the output of a 4-step PTO by fractionalizing the number of speed changing steps. The transmission uses a large number of identically standardized gears and hub sleeves but reduces the number of built-in parts in each part of the transmission, raises the productivity by using a large number of the same parts and controls the equipment efficiently due to easy disassembly for maintenance.
Abstract: A method and apparatus is provided for automatic shifting of a multi-path, toothed-wheel gear change box with at least two gearbox subunits in parallel to one another in the power transmission path between an input shaft and an output shaft and having loose wheels which can be coupled to their shaft in each case by a gearwheel clutch. A starting shift condition is selected if the vehicle is at a standstill, in which condition both the gearwheel clutch connected to the loose wheel of the gearwheel stage of the reverse gear and the gearwheel clutch of that gearwheel stage which forms the lowest of the gears, which are independent of the power-shift clutch of the gearbox subunit with the gearwheel stage of the reverse gear, are engaged.
Type:
Grant
Filed:
October 4, 1991
Date of Patent:
January 26, 1993
Assignee:
Mercedes-Benz AG
Inventors:
Wolfgang Zaiser, Hans Merkle, Gerhard Wagner, Gerhard Spengler
Abstract: A motor vehicle such as a four-wheel drive vehicle having a first axle shaft which is driven by a drive source and a second axle shaft which is driven by the same drive source, each of a pair of wheels associated with the second axle shaft being powered by way of individual variable torque transmitting devices, further comprising: a steering condition sensor; and a control unit which reduces a torque transmission ratio of one of the variable torque transmitting devices corresponding to the inner one of the wheels of the second axle shaft when the steering condition sensor has detected a steering angle greater than a prescribed value. Thereby, the problem of the tight turn braking can be avoided without losing the advantages of four-wheel drive.
Abstract: The anvil rotor on a wood chip slicing machine is connected to its drive shaft via shear pins which extend into the hub of the rotor from a coupling which is mounted on the shaft. The coupling provides bearings for rotation of the rotor hub thereon when the shear pins are sheared as a consequence of an overload or load shock condition. The overload protection mechanism is applicable to other machines.
Type:
Grant
Filed:
January 5, 1990
Date of Patent:
July 9, 1991
Assignee:
Acrowood Corporation
Inventors:
Donald A. Dean, Adrian Artiano, Gabriel M. Terrenzio
Abstract: A dual counterrotating propeller drive mechanism for a marine propulsion system incorporates a torque splitting device which consists of a differential gear means and a ratio gear means. The torque splitting device assigns a selectable fixed fraction of the engine torque to each propeller regardless of power, thrust, and speed conditions. The rear one of the two propellers adjusts its rotational speed relative to the front propeller in response to changes in the front propeller's wake and in this way maintains optimum propulsive efficiency over a wide range of operating conditions. Furthermore, precise matching of front and rear propeller parameters for a given application is no longer required.
Type:
Grant
Filed:
March 20, 1989
Date of Patent:
April 23, 1991
Assignee:
Brunswick Corporation
Inventors:
Herbert A. Bankstahl, Lyle M. Forsgren, Neil A. Newman, Wayne T. Beck, John M. Griffiths
Abstract: A system for damping relative rotation between two axially driven shafts (30) rotating in the same direction and for indicating failure of one of the shafts is disclosed. The system includes a coupling mechanism (34), coupling the driven shafts together to transmit torque from one of the shafts to the other of the shafts upon a predetermined relative angular rotation between the two shafts and providing a free zone of relative rotation between the shafts without transmitting torque between the shafts when the shafts have moved less than a predetermined angular rotation with respect to each other within the free zone of rotation. A mechanism (32) is provided which is coupled to the shafts for producing movement of a movable member (40) which is directly proportional to the degree of relative rotation between the shafts (30) during relative rotation between the shafts less than the predetermined relative angular rotation within the free zone of rotation.
Abstract: A versatile transmission, particularly a test stand transmission, in which internally and/or externally toothed conversion elements can be inserted from the outside to transmit torque from gears driven by one or more input shafts to one or more output shafts.
Abstract: The present invention is a multipath power transmission for use in an aircraft nosewheel steering system. Two planetary gear sets, together providing the power to steer the nosewheel, have their ring gears externally meshed to balance the power delivered by each of the planetary gear sets. As a result, each planetary gear set must only be sized for fifty percent of the rated load, thereby minimizing weight and size, both of which are critical in an aircraft.
Abstract: The specimen (P) can be turned about each of three axes (A, B and C) by rtion of the input shaft (10). The apparatus exhibits three brackets (H1, H2, H3) mounted on each other in the manner of a cardan joint and supported by the frame (GR). The first bracket (H1) is fixed on the frame (GR) via a clutch coupling (K1). Additional couplings (K2 and K3) connect the second bracket (H2) to the first bracket (H1) and the third bracket (H3) to the second bracket (H2). Of the three couplings, only one is ever released, while the two others are engaged. In this manner the specimen (P) can describe a movement about each of the three axes by rotation of the single input shaft (10).
Type:
Grant
Filed:
June 25, 1985
Date of Patent:
January 5, 1988
Assignee:
Deutsche Forschungs--und Versuchsanstalt fur Lift--und Raumfahrt E.V.
Abstract: This invention relates to a jam tolerant rotary actuation system having multiple flight control surfaces. The actuation system includes in combination an actuation mechanism for each flight control surface. Each actuation mechanism is releaseably coupled to a main drive line shaft. The main drive line shaft is mechanically, serially coupled to each actuation mechanism to thereby establish an actuation assembly.A power drive unit is provided and is drivingly coupled to either end of the actuation assembly to thereby create an actuation system that will respond to the jamming of one of the flight control surfaces by the release of the actuation mechanism associated with the jammed surface from the main drive line shaft and the actuation of the remaining surfaces by the power drive unit.
Abstract: The present invention relates to a gondola lift having two parallel suspension haulage cables between which the gondolas hang. The two cable loops extend between two stations and each cable is driven by a direct current electrical motor, the two motors being identical and having separate excitation circuits. The armature windings are connected to the same power supply source by two armature circuits including identical resistors which provide an armature voltage drop and a reduction in speed for restoring identical power outputs of the two motors when one of the cables is in advance. The mechanical connections between the cables and the motors include gear boxes, the high speed shafts therefrom being coupled by a control clutch.
Abstract: A marine transmission gear unit with double drive where two driving engines are arranged offset from and on one side of and parallel to a propeller shaft axis and on opposite sides of gear train assembly including a common pinion gear and a greater wheel gear coupled to the propeller shaft. The two driving engines are arranged to drive the greater wheel gear by way of the pinion gear. An intermediate gear unit is coupled between the common pinion and at least one of the driving engines and a clutch device is disposed in the drive train adjacent the greater wheel. One or both engines are coupled to the common pinion through an intermediate gear unit. The engines can be codirectional in one direction or the opposite direction or can be contra-directed one relative to the other. The engines can be axially offset or coaxial. The clutch device may comprise an overriding clutch assembly. The intermediate gear unit may comprise either a spur gear and a planetary gear assembly, or a pair of planetary gear assemblies.
Abstract: A marine transmission gear unit with double drive where two driving engines are arranged offset from and on one side of and parallel to a propeller shaft axis and on opposite sides of gear train assembly including a common pinion gear and a greater wheel gear coupled to the propeller shaft. The two driving engines are arranged to drive the greater wheel gear by way of the pinion gear. An intermediate gear unit is coupled between the common pinion and at least one of the driving engines and a clutch device is disposed in the drive train adjacent the greater wheel. One or both engines are coupled to the common pinion through an intermediate gear unit. The engines can be codirectional in one direction or the opposite direction or can be contra-directed one relative to the other. The engines can be axially offset or coaxial. The clutch device may comprise an overriding clutch assembly. The intermediate gear unit may comprise either a spur gear and a planetary gear assembly, or a pair of planetary gear assemblies.
Abstract: A change-speed transmission comprises: an input member; an output member; a hydrokinetic unit having a pump connected to the input member for simultaneous rotation therewith and a turbine; first and second clutches; a divider in the form of a planetary gear set; and a planetary gear train. The divider has a first, a second and a third rotary element, while, the planetary gear train also has a first, a second and a third rotary element. The first rotary element of the divider is connected to the first rotary element of the gear train for simultaneous rotation therewith, and the second rotary elements are connected to each other through the second clutch. The second or third rotary elements are connectable through a first or a torque split clutch to the input member. The turbine of the hydrokinetic unit is connectable to the other one of said second and third rotary elements. The output member is connected to the third rotary element of the gear train or divider.
Abstract: A cone drive, high output speed reducer, having a low clearance for low profile applications. An input shaft drives a helical idler pinion which in turn drives two other helical idler pinions. The two other idler pinions are each mounted on a separate shaft carrying a cone drive worm. The two worm shafts turn in unison, and the worms are each meshed with a separate worm gear. The two worm gears are operatively mounted on an output shaft. One of the helical idler pinions is provided with an adjustment means for equalizing the load sharing. That is, to provide equal loads on each of the helical pinions for load sharing throughout the twin drive gearing units of the speed reducer. The speed reducer may be provided with either an air cooling system or a water cooling system.
Type:
Grant
Filed:
March 27, 1978
Date of Patent:
October 28, 1980
Assignee:
Ex-Cell-O Corporation
Inventors:
Walter H. Douglas, Richard F. Peterson, Willard J. Nielsen, Charles D. Treat, Jerry B. Hagaman, Wendell G. Loveless, William R. Scott
Abstract: The rotational speed and torque mechanical transducer comprises an outer rotor connected to the motor through a power input shaft; a transverse shaft rotatably mounted at the interior of the outer rotor, and presenting an inner rotor secured thereon; a second shaft rotatably mounted in the inner rotor at right angles with respect to the axis of said inner rotor, and carrying secured thereon a central rotor; an intermediate rotor rotatably mounted around the axis of the inner rotor, and connected through a gear transmission with the shaft of the central rotor, and through another gear transmission with a main output shaft, while the shaft of the inner rotor is connected through a gear transmission with an auxiliary output shaft.
Abstract: Fourfold power branching for each propulsion mode (forward and reverse) requires recombining on a single output shaft which is carried out via two large gears mounted separately on axially spaced hollow shafts, one being traversed by the output shaft whose end is coupled centrally to the facing ends of the two hollow shafts by two gear couplings with crowned teeth.
Abstract: A marine gear drive has two drive pinions for coupling to respective high-speed and low-speed engines and both pinions connected through intermediate gears to a common larger gear adapted to be coupled to a propeller shaft. The drive pinions, intermediate gears and larger gear are disposed in only two planes and one drive pinion is in the driving train from the other drive pinion to the larger gear. An arrangement for a twin propeller drive, with each propeller driven by high-speed and low-speed engines as aforesaid, counter-rotates the propellers without reversing the direction of rotation of the drive inputs.
Abstract: A power distributing apparatus for vehicles includes an input shaft, first and second output shafts, a simple planetary gear set having a carrier operatively connected to the input shaft, a ring gear cooperating with the first output shaft, and a sun gear selectively engaged with the second output shaft, and means for selectively engaging the carrier and the sun gear and for integrally rotating the sun gear and the carrier in the engaging state of the sun gear and the carrier, and for more slowly rotating the sun gear than the carrier in the disengaging state of the sun gear and the carrier.
Abstract: The invention relates to a drive for magnetic tapes, wherein the tape is driven in the fast rewind and fast forward modes off a reversible electric motor which is concurrently and constantly connected to two spindles wherearound the tape coils and decoils, and wherein a means is provided for automatically engaging for rotation the electric motor with that spindle which rotates in a direction such as to wind up the tape, and a friction clutch device which in the recording and playing modes compensates for the differential between the tape speed and the spindle speed as driven by the electric motor, whereas in the fast forward mode it locks automatically.
Abstract: A transmission mechanism adapted especially for agricultural and industrial tractors and for heavy construction vehicles comprising a pair of hydrostatic pump-and-motor units arranged in a closed hydrostatic fluid flow circuit, a planetary gear unit and geared connections between separate elements of the gear unit and the rotor for each hydrostatic unit, each geared connection having its characteristic speed ratio thereby defining multiple speed ranges within which an infinite torque ratio variation is achieved.
Abstract: Continuously operating sedimentation tank with center pier supported rake structure rotated by a drive head featuring an improved hydrostatic bearing, of compact construction wherein the bull gear is shaped to conform to an improved arrangement of vertical load supporting hydrostatic bearing faces, and radial hydrostatic bearing faces, wherein the base structure of the drive head is a unitary casting embodying an annular reservoir for collecting the hydrostatically spent operating oil, together with improved torque transmitting and weight supporting connecting means between the bull gear and the surrounding top end portion of the vertical cage portion of the rake structure.
Abstract: A power transmitting mechanism for starting a load which is either of high inertia or of high starting torque and which is to be driven at a high speed through a high reduction ratio. The load has a main power source and also an axuiliary power source which initially turns over the load from a zero speed condition. After the load has been turned over by the auxiliary starting means and through a high reduction ratio, the main power source acts to slip the overrunning clutch and bring the load up to speed. The auxiliary power source has a hydraulic coupling retarder which acts to retard the auxiliary power source during its initial operation and thereby reduces its kinetic energy during its initial operation and decreases the large torque pulses which would otherwise occur in the mechanism during the start-up. The mechanism includes hydraulic control means for controlling the sequencing of the fluid fill of the hydraulic coupling retarder.
Type:
Grant
Filed:
January 8, 1975
Date of Patent:
April 20, 1976
Assignee:
Twin Disc, Incorporated
Inventors:
Raymond C. Schneider, Robert W. Meyer, Gerald C. Borgelt