1612 results about "Transfer case" patented technology

An autonomous transport vehicle for transferring case units to and from predefined storage areas in an automated case unit storage system, the automated case unit storage system including an array of multilevel storage racks with picking aisles passing therebetween and at least one multilevel vertical conveyor having movable shelves, the autonomous transport vehicle including a frame configured to traverse the picking aisles and a transfer deck connecting the picking aisles to the at least one multilevel vertical conveyor for transferring case units between the predefined storage areas and the at least one multilevel vertical conveyor, and a controller connected to the frame, the controller being configured to effect movement of the autonomous transport vehicle through the picking aisles for accessing each storage area within a respective level of the array of multilevel storage racks and each shelf of the at least one multilevel vertical conveyor.

A multiple speed transmission capable of producing five underdrive gear ratios, one direct drive ratio, four overdrive ratios, and four reverse ratios includes four interconnected planetary gearsets, multi-plate clutches and brakes controlling the gearset elements, and a coupler that changes between forward drive and reverse drive by holding and releasing alternate gearset components against rotation on the transmission case. The transmission in combination with a single-speed transfer case having either an on-demand transfer clutch, or a full-time all-wheel drive system, are formed in an integrated package.

The invention relates to a fracturing transmission and high-pressure discharging system. The fracturing transmission and high-pressure discharging system comprises a chassis and is characterized in that a high-power engine, a transfer case, a plurality of variable displacement plunger pumps and a double-acting fracturing pump are arranged on the chassis, the output end of the high-power engine is connected with the input end of the transfer case, the output end of the transfer case comprises a plurality of power take-off ports, and each power take-off port is connected with one variable displacement plunger pump; the variable displacement plunger pumps drive the double-acting fracturing pump through a hydraulic system. The fracturing transmission and high-pressure discharging system further comprises a system radiator and a heat dissipation plunger pump used for driving the system radiator, and the heat dissipation plunger pump is connected with one power take-off port of the transfer case. The power take-off ports of the transfer case and the variable displacement plunger pumps are arranged annularly. The fracturing transmission and high-pressure discharging system has the advantages that hydraulic driving replaces mechanical transmission, and working vibration is reduced; the layout space of a whole vehicle is saved, and meanwhile, operating efficiency and the stability of the whole vehicle are improved.

A method of modifying a conventional internal combustion powered vehicle to hybrid electrical form involving modifying the drive train so that the rotor of a motor generator may be connected to the input of the drive train. This may be accomplished by removing an element and substituting a transfer case having driving inputs from both the engine and motor-generator, or by connecting the rotor of the motor generator to an input to the drive train.

A blast-resistant armored land vehicle that may include a monocoque body comprised of sheet material with the bottom portion of the vehicle being substantially V-shaped. The apex of the V is substantially parallel with the centerline of the vehicle with the tip of the V having a radius of approximately 1-4 inches. The angle of the V may be approximately 115°-130°. The vehicle has a ground clearance of greater than 30 inches. The vehicle further includes an engine detachably affixed within the body, a transmission connected to the engine, a transfer case connected to the transmission having a front output shaft and a rear output shaft. The transfer case may be located at the approximate the fore and aft center of the vehicle and may be enclosed within a blast resistant that includes sheet material above the transfer case. The drive train may be connected to the engine and may be detachably affixed to the body.

An autonomous transport vehicle for transferring case units to and from predefined storage areas in an automated case unit storage system, the automated case unit storage system including an array of multilevel storage racks with picking aisles passing therebetween and at least one multilevel vertical conveyor having movable shelves, the autonomous transport vehicle including a frame configured to traverse the picking aisles and a transfer deck connecting the picking aisles to the at least one multilevel vertical conveyor for transferring case units between the predefined storage areas and the at least one multilevel vertical conveyor, and a controller connected to the frame, the controller being configured to effect movement of the autonomous transport vehicle through the picking aisles for accessing each storage area within a respective level of the array of multilevel storage racks and each shelf of the at least one multilevel vertical conveyor.

An outboard motor for a marine vessel application, transmission devices for such an outboard motor, and related methods of making, operating, and modifying attributes of same, are disclosed herein. In at least one embodiment, the motor includes a horizontal-crankshaft engine in an upper portion of the motor, positioned substantially above a trimming axis of the motor. In at least another embodiment, first, second and third transmission devices are employed to transmit rotational power from the engine to propeller(s). In at least a further embodiment, the motor is made to include a rigid interior assembly formed by the engine, multiple transmission devices, and a further structural component. In further embodiments, the motor includes numerous cooling, exhaust, and / or oil system components, and / or other transmission features. In at least some additional embodiments, a transmission device of the motor is configured to facilitate gear ratio variation and / or includes an integrated oil pump.

An auxiliary electric drive assembly includes an alternating current induction motor, planetary speed reduction gearing and a differential. The differential may be either active or passive. The auxiliary drive system is utilized as the front axle in a rear wheel drive vehicle and the rear axle in a front wheel drive vehicle. Elimination of many of the components in a conventional four wheel drive system such as the transfer case and hybrid gears improves the overall efficiency and fuel economy of a vehicle so equipped.

In a motor vehicle driveline including a transfer case whose output is continually connected to a first output, a clutch, operating partially engaged, responds to a control signal to change the degree of clutch engagement, whereby a second output is connected driveably to the first output. A digital computer continually calculates a change in clutch temperature at frequent intervals and updates a running sum of clutch temperature changes. The control causes the clutch to more fully engage if the current calculated clutch temperature exceeds a predetermined reference clutch temperature.

A hybrid drive system for a four-wheel drive system arranged to supply motive power to a first output shaft of a transfer case from an internal combustion engine and to a second output shaft from an electric motor / generator. The transfer case includes a reduction gearset driven by the electric motor / generator, a power take-off unit driven by the reduction gearset, and a disconnect clutch operable for selectively coupling the reduction gearset to the second output shaft. This hybrid drive arrangement permits installation of a modified transfer case in place of a conventional transfer case for use in a traditional four-wheel drive driveline arrangement.

A transfer case for a vehicle that allows shifting between AWD and two-wheel drive at any vehicle speed. The transfer case includes a center differential employing pinion and sun gears that allow a front drive shaft and a rear drive shaft to turn at different speeds to provide the all-wheel drive function. The transfer case further includes an electrically actuated synchronizer assembly that allows the speed of the front drive shaft to be synchronized to the speed of the rear drive shaft when shifting from two-wheel drive to all-wheel drive to provide the shift on the fly function. The synchronizer assembly also includes a neutral position where both the front drive shaft and the rear drive shaft are not engaged to the vehicle transmission to allow for vehicle towing.

The invention discloses an energy-saving control method for concrete transportation pump, according to the status request of the construction site, and the matching relation of load pressure PL and the engine power in central control unit, the rotating speed ne of engine and the oil pump current I are calculated preliminarily, the control signal of engine speed ne is send to the chassis engine of concrete transportation pump through central control unit, the rotating speed is adjusted in closed-loop according the current speed feedback from chassis engine to make the current speed n is same with the set rotating speed ne; the chassis engine transmits the power to oil pump through the transmission mechanism (transfer case), the control of current I in oil pump is completed by: the central control unit sends signals to oil pump directly, the oil pump transmits the power of chassis engine to the hydraulic pressure system to realize the control of concrete transportation pump working process. The invention can adjust the engine rotating speed timely and the control mode of oil pump displacement according the requirements of actual working condition to adapt various power occasions, reduce fuel consumption and improve the operating efficiency.

The invention relates to an urban rail operation vehicle and in particular relates to a straddle type monorail operation vehicle with a structure comprising two pairs of wheels. The straddle type monorail operation vehicle comprises a carriage, a steering frame, an engine, a transfer case and a walking pump, wherein the steering frame is connected with an underframe of the carriage through a central pin dragging device; the steering frame comprises a framework, a secondary suspension device and a dragging device; the overall framework is of an II-shaped full-steel installed and welded plate type box structure and comprises a side beam, end beams connected to two ends of the upper part of the side beam and two vertical beams which are connected between the end beams; a motor bracket is fixed between the upper part of the side beam and the corresponding vertical beam; two independently-driven walking wheel assemblies are mounted on two motor brackets; four guide wheel assemblies are mounted on two sides of the middle part of the side beam; two stabilizing wheel assemblies are mounted on two sides of the lower part; the secondary suspension device adopts a secondary steel coil spring assembly. The straddle type monorail operation vehicle can reasonably meet the circuit requirements of monorail PC beams and is high in safety coefficient, excellent in dragging performance, simple and compact in structure, easy to maintain, stable in running and excellent in brake performance.

A friction clutch pack utilizes permanent magnets and induction rings to actuate a ball ramp actuator which come in turn, engages the friction clutch pack to transfer torque between drive and driven members in, for example, a motor vehicle transfer case. The permanent magnets and induction rings may also be utilized as a synchronizer to urge the speeds of two rotating members into synchronism to facilitate engagement of a direct coupling i.e., a dog clutch.

A torque transfer mechanism is provided for controlling the magnitude of a clutch engagement force exerted on a multi-plate clutch assembly that is operably disposed between a first rotary and a second rotary member. The torque transfer mechanism includes a clutch actuator for generating and applying a clutch engagement force on the clutch assembly.

In a motor vehicle driveline having an automatic transmission driveably connected to a transfer case whose output is continually connected to a first output, a clutch, selectively engaged in response to a control signal, driveably connects a second output to the first output. A digital computer continually monitors the occurrence of a change of clutch slip, input torque and a torque rate change to control the torque transmitted by the clutch to the second output. The control causes the clutch to transmit torque to the second output having a constant fraction of the input clutch torque and another portion that is proportional to the clutch slip. This result simulates the torque slip characteristics produced by transfer case having both a center differential mechanism and a viscous clutch.

A hybrid transfer case can include first and second output shafts adapted for connection to respective rear and front drivelines, a first input shaft adapted for connection to a transmission and for selective connection to the first output shaft, and a second input shaft that can be rotatably supported on the first input shaft and selectively connected to the first output shaft. The transfer case can further include a planetary gearset, a transfer system and an electric motor / generator. The planetary gearset can include a first member fixed for rotation with the first input shaft, a second member fixed for rotation with the second input shaft, and a third member. The transfer system can couple the second input shaft to the second output shaft, and the electric motor can selectively drive the third member.

A gear box assembly as used in an inverted portal axle or transfer case includes a drive gear and at least one driven gear in meshing engagement with the drive gear at a contact point. A gear housing closely surrounds portions of an outer circumference of the drive and driven gears to form a baffle area. The gear housing includes an discharge orifice that is located near the contact point and a fluid gallery that extends from the discharge orifice to other locations within the gear housing. As the drive gear drives the driven gear, fluid is pumped into the discharge orifice and through the fluid gallery to fluid outlets positioned at desired locations to lubricate other gear box components. Radial inlets with elongated chamfers and stator vanes can be formed within the gear housing to draw air ingested during pumping away from the discharge orifice. Additionally, a bypass loop can be used to scavenge unwanted air ingested into meshing gear teeth.

The invention discloses an oil hybrid system for an excavator with energy differential recovery, belonging to the technical field of energy-saving control of a hydraulic excavator, including: a controller, a transfer case, a variable pump, a variable motor, a reversing valve, a one-way valve and an accumulator, so that the energy differential recovery function and the oil hybrid function can be combined hydraulically. The accumulator is used as the energy storage unit, the variable pump and the variable motor are used as the auxiliary power unit, and power coupling is completed by the transfer case and the engine. The controller solves the matching problem of master and auxiliary power sources according to control rules, to stabilize the engine to work in the high-efficiency fuel zone. In the invention, energy from the hydraulic system and power system of the excavator can be maximally recovered, distributed and reused, the working efficiency of the engine can be optimized, the fuel economy of the excavator can be improved, and the system exhaust can be reduced.

The invention relates to a hybrid vacuum sweeper. A chassis is provided with an engine, a gear transfer case, a silicon rectifying generator, a storage battery, a power converter, a motor, a dustbin, a suction tube, a suction cup, a fan, a water tank and a water pump. The engine drives the silicon rectifying generator and the fan respectively. The silicon rectifying generator is connected with the power converter and the storage battery to output generated electric current. The power converter is connected with the motor to drive a rear axle shaft to drive the vacuum sweeper to run. The fan sucks dust and garbage on the ground in front of the suction cup into the dustbin through the dustbin, the suction tube and the suction cup. The water pump pumps water from the water tank to control the dust in the suction tube and the suction cup by a wet method. In the invention, a hybrid drive technology is applied to a special urban environment sanitary vehicle with vehicle-mounted operating devices, and the special vehicle has an oil-saving effect due to the use of a single engine as well as good operation effects; and a hybrid drive mechanism continuously generates electricity and overcomes the drawback that an electrical vehicle can not work for a long time due to the limitation from the capacity of the storage battery.

A hybrid transfer case includes a mainshaft, front and rear output shafts, an electric motor / generator connected to the mainshaft, and an input clutch for selectively coupling the transmission to the mainshaft. The transfer case further includes a planetary gearset having a sun gear driven by the mainshaft, a ring gear, and planet gears supported from a carrier. A direct clutch is operable to selectively couple the rear output shaft for rotation with the input shaft. A low brake is operable to selectively brake rotation of the ring gear. A transfer clutch controls the amount of drive torque delivered through a transfer assembly to the front output shaft. A hybrid control system is provided for controlling actuation of the various clutch and brake assemblies and the electric motor / generator to establish various drive modes.

The invention belongs to the technical field of fracturing construction mechanization, and particularly provides a full-automatic liquid adding device for fracturing construction and an adding calibration method. The full-automatic liquid adding device comprises a prying frame, an engine, a transfer case, a hydraulic device, a liquid adding pump, a metering calibration tank, a liquid additive tank, a liquid supply pump and a control unit, wherein the input ends of the engine, the transfer case and the hydraulic device are sequentially connected; the output end of the hydraulic device is connected with the liquid supply pump and the liquid adding pump; the liquid supply pump is connected with an inlet of the liquid additive tank; an outlet of the liquid additive tank is sequentially connected with inlets of the metering calibration tank, the liquid adding pump and the liquid additive tank; the control unit is electrically connected with the engine, the transfer case, the hydraulic device, the liquid adding pump, the metering calibration tank, the liquid supply pump and the liquid additive tank; and the current situation that in the fracturing construction process, the liquid additive adding precision is large in adding difficulty and discontinuous is avoided, the mechanization and automation degree of fracturing construction is improved, meanwhile, the construction quality and potential safety hazards are effectively eliminated, and the construction success rate is increased.

An electric drive unit is pre-assembled within a cradle housing that is to be mounted as a single unit on a vehicle structure to provide a hybrid vehicle. The electric drive unit includes a pair of inverters, a pair of battery packs, a pair of cooling units, and an electronic control unit (ECU) that are enclosed within the cradle housing. A transfer case with an associated pair of electric motors is also supported by the cradle housing. The cradle housing is mounted to a pair of vehicle frame rails and extends laterally across a vehicle.

The invention discloses a single-engine washing and sweeping vehicle. The single-engine washing and sweeping vehicle comprises a chassis, a full-power power takeoff, an auxiliary gearbox, an operation walking system, an auxiliary vehicle frame, a transfer case, a fan assembly, an oil pump assembly, a high-pressure water pump assembly, a box body, a disc brush, a suction opening and the other operation devices. The full-power power takeoff, the auxiliary gearbox and the operation walking system are arranged in a chassis transmission system, the transfer case, the operation devices and the box body are arranged on the auxiliary vehicle frame, power of a chassis engine is driven to the transfer case through the full-power power takeoff and a transmission shaft, three output openings of the transfer case drive the various operation devices respectively, and the operation walking system comprises a walking variable pump, a walking motor and an accessory device. In the working process, the power takeoff of the chassis gearbox drives the variable pump, and a closed type system is formed by the variable pump and the walking motor. The chassis engine is utilized for achieving chassis walking and driving in the driving and operation process of the washing and sweeping vehicle, and high-speed stable rotating speed of the operation device and low-speed and variable-speed walking control of the chassis are ensured.