Abstract:
The invention essentially relates to a method for blocking wheels of a vehicle when stopped in which a transmission device (1) is placed between an output (2) of a heat engine (3) and a wheel (5) axle shaft (4). This device (1) comprises an input shaft (13) connected to the output (2) of the engine (3), an output shaft (31) connected to the wheel axle shaft (4), and at least one electrical machine (6, 7). The device also comprises a mechanical assembly (12) interconnecting the input shaft (13), the output shaft (31) and the shaft (8, 9) of the machine. This assembly (12) is connected to a bridge (15) that, in turn, is connected to the wheel (5) axle shaft (4). The invention provides that, in order to block the wheels when the vehicle is stopped and to limit an observable torque on the elements of the assembly (12), the wheel axle shaft is blocked by the mechanical assembly.
Abstract:
A dual clutch forward/reverse unit includes a pair of spring engaged clutch units and a pair of lifter pins, each pin operable to disengage a corresponding one of the clutches. An actuator mechanism for the forward/reverse unit includes a housing, a shaft rotatably mounted in the housing, and a hollow cylindrical sleeve rotatably mounted on the shaft. The shaft and the sleeve are operatively coupled to the lifter pins. The shaft has a pair of cam surfaces formed on an outer periphery thereof. The sleeve has a pair of openings through which the cam surfaces are exposed. A pair of lifters are pivotally supported in the housing. Each lifter has one side engaging a corresponding one of the lifter pins, and has another part engagable with one of the cam surfaces through a corresponding one of the openings. Each cam surface is thus operatively coupled to one of the lifter pins by a lifter. The sleeve is rotatable to a position wherein a wall of the sleeve acts to uncouple the lifters from the shaft so that the shaft can be rotated while both clutches are disengaged. The shaft is then rotatable to selectively engage one or the other of the clutches.
Abstract:
The remote-control device features a servomechanism that transmits the movements of a first control cable or tie rod, which is connected to handgrip or control pedal, to a second cable or tie rod which is connected to an application. The servomechanism features two neutral levers with bodies having a cylindrical sector. The levers are connected, respectively, to the cables or tie rods. This servomechanism features a shaft of a geared motor which is arranged coaxially between two bodies of the levers, features a spiral spring arranged between the two bodies and the shaft, and is tightly wound on the shaft. The spring has opposing ends which face outward and extend between the bodies. The servomechanism further features a transducer which detects the movements of first control cable and actuates an electronic unit which controls the geared motor in such a way that the remote control can be effected electromechanically or, in the event that the electrical components malfunction, mechanically.
Abstract:
A bearing arrangement for the drive pinion of a marine transmission or the like reduces deflections of the shaft on which the pinion is mounted. The bearing arrangement mounts the pinion in part on the shaft and in part directly on the transmission housing, thus reducing loads imposed on the shaft by the pinion. The bushing which typically supports the pinion on the drive shaft is eliminated in favor of a first bearing supporting the input end of the pinion in the housing and a second bearing supporting the output end of the pinion on the shaft. Third and fourth bearings support the output and input ends of the shaft in the housing and on the pinion, respectively. Preferably, the first, second, and third bearings comprise single taper roller bearings which permit the points at which the effective loads are imposed on the shaft to be shifted and the running clearances of which are adjusted by a single shim pack. Deflections can be reduced still further by positioning the clutch return spring proximate an outer surface of the clutch.
Abstract:
The constant-mesh transmission includes a gear case, an input shaft, a counter shaft and an output shaft. An input drive gear integral with the input shaft meshes with the counter shaft drive gear. First, second and third speed counter shaft gears are integral with the counter shaft. A fifth speed counter shaft gear and a counter shaft sprocket are journaled on the counter shaft. First, second and third speed driven gears are journaled on the output shaft and in mesh with the first, second and third speed counter shaft gears. A reverse driven sprocket is journaled on the output shaft. A fifth speed output shaft gear is secured to the output shaft. A chain is trained around the sprockets. Clutch assemblies are mounted on the output shaft and a clutch is mounted on the counter shaft. A clutch locks gears to the output shaft for first and second speed. A clutch locks a gear to the output shaft for third speed or locks the input shaft to the output shaft for fourth speed. A clutch locks a gear to the counter shaft for fifth gear or locks a drive sprocket to the counter shaft. A clutch locks a driven sprocket to the output shaft. A shift fork simultaneously locks a sprocket to the counter shaft and locks a sprocket to the output shaft to drive the output shaft in a reverse direction from the input shaft rotation. Some of the clutches include synchronizers.
Abstract:
A forward and reverse power shift transmission (10) with an enclosed gear se (38) and a torque converter housing (44) is adapted to be connected to an engine bell housing (12). An input shaft (46), a lay shaft (146) an output shaft 36 and a pump driveshaft (280) are rotatably journaled in the gear case. A clutch cylinder and gear (78) secured to the input shaft is in mesh with a clutch cylinder and gear (178) secured to the lay shaft 146. A clutch gear (100) rotatably mounted on the input shaft (46) and a clutch gear (200) rotatably mounted on the lay shaft (146) are both in mesh with an output gear 240 on the output shaft 36 and in the front portion of the gear case (38). A pump drive gear (248) is journaled on the input shaft (46) and is adapted to be driven by the torque converter housing (262). The pump drive gear (248) is in mesh with a driven pump gear (290) on the pump drive shaft. The pump drive shaft (280) drives a lubrication pump (291) and is also a power take off. The input shaft (46) and the lay shaft (146) carry multiple disk clutches that lock the clutch gears (100 or 200) to the input or lay shafts when engaged. Switches (484) provide a warning when the clutch disk assemblies (112 or 212) and the clutch dics (114 or 214) are worn. A catch basin (334) on the outside of the gear case (38) catches any lubricant that is released while removing the external filter (326). A brake and assembly (336) encircles the output shaft 36; inside the gear case and brakes the output shaft when engaged.
Abstract:
A reverse gear mechanism in a vehicle gear transmission having a first shaft, a second shaft, and gear trains associated with the first and second shafts for transmitting the torque from one of the first and second shafts to the other. The reverse gear mechanism includes a reverse drive gear supported on the first shaft, a reverse driven gear supported on the second shaft, and an idle gear assembly interposed in meshing relation between the reverse drive and driven gears. The idle gear assembly is composed of a third shaft, a first idle gear supported on the third shaft and meshing with the reverse drive gear, a second idle gear supported on the third gear and meshing with the reverse driven gear, and a clutch unit interposed between the first and second idle gears for limiting the torque transmitted between the first and second idle gears to a prescribed value. The components of the power transmission mechanism can be designed reasonably and advantageously.
Abstract:
An oil pump assembly having an adjustable production rate and capable of long stroke, low stroke per minute pumping rates, comprising a reciprocating pumping rod in a well hole, a counterbalancing mechanism for reducing the power needed to pump oil by the pumping rod, a driving mechanism to drive the reciprocating pumping rod and the counterbalancing mechanism, including a first cable and a second cable, to drive the reciprocating pumping rod and the counterbalancing mechanism, respectively, a speed control for the driving mechanism, and a dwell mechanism for the driving mechanism.
Abstract:
A power transmission of the type having an interleaved, multiple friction plate clutch in which helical cam elements are used to provide clutch plate clamp up force and transmit driving torque between the parts. In one form of such a transmission where the input and output members are arranged in coaxial alignment, special axial thrust absorbing means are used for absorbing the axial thrust developed in one clutch assembly.