Abstract: A three-speed transfer case for providing a direct drive connection between the input shaft and the output shafts, a low-range drive connection and an ultra low-range drive connection. The ability to choose between the distinct speed ratio drive connections permits the vehicle operator to best match the road conditions or off-road terrain to the tractive requirements of the motor vehicle.

Abstract: In a variable-speed transmission arrangement, a continuously variable toroidal transmission and a planetary aggregating transmission are arranged in the power path between an input shaft and a coaxial output shaft. A central intermediate shaft is mounted to the input shaft for rotation therewith and to an input disc of the toroidal transmission. A planet carrier is connected firmly to the central intermediate shaft which passes through a concentric intermediate shaft, to which an output disc of the toroidal transmission and a second transmission member of the output transmission are connected. A third transmission member of the aggregating transmission is connectable to the output shaft, by means of a first clutch in a low mode, and a fourth transmission member of the aggregating transmission is connectable to the output shaft by means of a second clutch in an upper driving mode.

Abstract: A powertrain having an engine and a continuously variable transmission provides a continuously variable drive ratio between the engine and the transmission output. The transmission includes a continuously variable unit (CVU) and a planetary gear arrangement. The CVU is of the traction type. The planetary gear arrangement has a compound planetary gear set, two simple planetary gear sets, and two torque transmitting mechanisms. The compound gear set is disposed adjacent the CVU and has members connected with the input and the output of the CVU. The two simple planetary gear sets are disposed axially between the compound planetary gear set and transmission output shaft. The sun gear member of the compound planetary gear set is rotatably supported on a single shaft that passes axially therethrough and transmits power from the engine to the carrier assembly member of the compound planetary gear set and one input member of the CVU.

Abstract: A planetary gear transmission has two or more planetary gear sets in the gear train. Each planetary gear set comprises a sun gear mounted on a sun shaft with the sun gear engaging a plurality of planet gears mounted on a planet gear carrier with the plurality of planet gears engaging a ring gear mounted on the transmission housing. Each gear of the planetary gear transmission is a helical cut gear. Sun gears and/or ring gears are mounted for axial movement with respect to the transmission. Thrust imbalances on the sun gears and/or ring gears resulting from uneven loading and the helical cut result in sun gears and/or ring gears moving in the axial direction to eliminate the thrust imbalances and thereby resulting in equal loading or power sharing amongst the planetary gear sets.

Abstract: A constant output transmission apparatus operable to transform a variable RPM input to an input shaft member through the use of double planetary gear set means and the use of a low range gear and clutch assembly and a high range gear and clutch assembly to transfer output through a ring gear and carrier assembly and an output ring gear assembly to an output shaft assembly to provide a constant RPM output to an output shaft member. The variable input to the input shaft member is constantly causing rotation of an input carrier plate assembly driving input planet gear members and, concurrently, driving an input drive gear assembly. The input gear drive assembly is operable to concurrently drive a low range gear and clutch assembly and a high range gear and clutch assembly. On activation of a respective low range clutch piston or a high range clutch piston, this operates to selectively operate and rotate a respective low range clutch assembly and a high range clutch assembly.

Abstract: A continuously variable transmission (CVT) has a continuously variable unit (CVU) which has co-axial input and output shafts that are also co-axial with the input and output of the CVT. The CVU includes a toroidal drive having the two input members, two output members and a plurality of transfer members disposed therebetween. The CVT includes a summing differential planetary gear set having one member driven by the CVU input, a second member driven by the CVU output and a third member driving the CVT output. The CVU output is connected through a central compound planetary gear set which is co-axially arranged about the CVU input shaft and positioned between the CVU output members. The CVU input shaft absorbs the normal forces applied through the CVU input members thereby reducing the capacity of some of the rotating bearings.

Abstract: A planetary gear transmission has two or more planetary gear sets in the gear train. Each planetary gear set comprises a sun gear mounted on a sun shaft with the sun gear engaging a plurality of planet gears mounted on a planet gear carrier with the plurality of planet gears engaging a ring gear mounted on the transmission housing. Each gear of the planetary gear transmission is a helical cut gear. Sun gears and/or ring gears are mounted for axial movement with respect to the transmission. Thrust imbalances on the sun gears and/or ring gears resulting from uneven loading and the helical cut result in sun gears and/or ring gears moving in the axial direction to eliminate the thrust imbalances and thereby resulting in equal loading or power sharing amongst the planetary gear sets.

Abstract: A method for operating an automatic traction drive transmission for use in motor vehicles having a first gear unit for operation in an infinitely variable mode and a second gear unit for operation in a continuously variable mode includes connecting the first gear unit to the transmission output, disconnecting the second gear unit from the first gear unit, and changing the speed ratio of the variator to produce low forward and low reverse ranges, or connecting the second gear unit to the first gear unit, disconnecting the first gear unit from the transmission output, and changing the speed ratio of the variator to produce high mode low and high forward ranges.

Abstract: The present invention refers to a transmission unit comprising a transmission input, a transmission output, at least one first main transmission stage and a second main transmission stage connected in series therewith, and a housing encompassing said first and second main transmission stages in common, at least said first main transmission stage being defined by a gear/shaft carrier provided with at least one shaft and at least two gears, and the thus defined first main transmission stage being replaceably inserted in a reception bore of the housing as a modular unit.

Abstract: The invention comprises an all gear mechanism for a continuously variable transmission that provides a wide range of output speeds and torque. The basic elements of the transmission are two planetary gear sets used as a power divider and a power combiner along with a one-way clutch and a hydraulic pump and hydraulic pump control devices. The controlling devices provide a continuously variable force against the low rpm power path. A high rpm gear train and a low rpm gear train are provided to vary the output. Appropriate sized gears are used to produce the desired overall output ratio. The output ratio is determined by engine capability or by the operator.

Abstract: In a multi-range, continuously variable transmission, input engine power is split between a belt-type, continuously variable transmission unit and a system of interconnected planetary gears. This gear system then combines the split power received from the engine and the transmission unit output to produce a transmission output for propelling a vehicle in multiple forward ranges and one reverse range, each range of continuously variable speed produced by stroking the transmission unit. Synchronous shifting between ranges is achieved by selectively clutching or braking elements of the planetary gear sets at appropriate stroke settings of the transmission unit, such that the vehicle may be smoothly accelerated from rest to maximum speed.

Abstract: An automatic transmission for an automotive vehicle includes a continually variable drive mechanism having one sheave assembly fixed to an input shaft and the output sheave assembly supported on an intermediate shaft, a first gearset for producing forward drive low gear and a range of continuously variable gear ratios, a second gearset for producing reverse drive, a first fixed ratio drive mechanism in the form of a chain drive providing a torque delivery path between the intermediate shaft and a ring gear of the first gearset, a second fixed drive mechanism in the form of a chain drive located in a torque delivery path between the output shaft and a front drive shaft, a transfer clutch for connecting and releasing the output sheave of the variable drive mechanism and sprocket wheel fixed to that shaft, a coast brake and forward brake for holding alternately the ring gear of the first gearset, and a reverse brake for holding the carrier of the second gearset.

Abstract: An automatic transmission for an automotive vehicle includes a continually variable drive mechanism having one sheave assembly fixed to an intermediate shaft and the input sheave assembly supported on an input shaft, gearset driveably connected to the input shaft and an output shaft, a fixed ratio drive mechanism in the form of a chain drive providing a torque delivery path between the intermediate shaft and the carrier of the gearset, a transfer clutch for connecting and releasing the first sheave of the variable drive mechanism and input shaft, a low brake, and a reverse brake.

Abstract: A transmission for a four-wheel drive vehicle having a multi-speed geartrain and power transfer mechanism incorporated into a common housing assembly. The multi-speed geartrain includes a input shaft, a mainshaft, and a plurality of constant-mesh gearsets arranged for selectively coupling the mainshaft to the input shaft for driven rotation at various speed ratios. The mainshaft can be selectively coupled to the power transfer mechanism for establishing two alternative power transmission routes. In particular, a synchronized range shift mechanism is provided for establishing a high-range transmission route and a low-range transmission route from the mainshaft to the input of an interaxle differential. The torque delivered to the interaxle differential is split between the front and rear drivelines to establish a full-time four-wheel drive mode. As an option, a lock-out clutch can be provided for permitting the interaxle differential to be locked for establishing a locked four-wheel drive mode.

Abstract: A two-stage planetary gear unit with a fixed gear case contains a first stage planet carrier, and a second stage planet carrier. The first stage planet carrier has a first set of rotatably mounted planet wheels and a first pinion that meshes with the first planet wheels. The second stage planet carrier is formed as a one-piece component that is mounted in the gear case and supports the first stage planet carrier. Rotatably mounted within the second stage planet carrier is a second set of two planetary wheels. Furthermore, a second pinion is housed within the second stage planet carrier and meshes with the second set of planetary wheels. There are rolling contact bearings housed within fixed gear case to support the second stage planet carrier. A clamping ring is inserted into the fixed gear case and braces two of the roller contact bearings next to each other.

Abstract: A drive system has a pair of planetary gear sets located between an input shaft and an output shaft with an intermediate shaft located between the pair of planetary gear sets. A series of oil shear brakes and clutches allow the drive system to operate in neutral, high speed forward, high speed reverse, low speed forward and low speed reverse. These operating modes are selectable without having to stop and reverse the input shaft which is allowed to rotate constantly in the same direction during all of the above operational modes.

Abstract: A six speed manual transmission having a double planetary gearset consisting of two simple planetary gearsets for use in a motor vehicle. The transmission includes an input shaft, a mainshaft rotatably connected by constant-mesh gearwheels to the input shaft, and an output shaft. This assembly provides two dissimilar fixed speed ratios, with a first power path using the first fixed speed ratio and a second power path using the second fixed speed ratio. The first power path includes a first sliding synchronizer clutch, a second sliding synchronizer clutch, and a first planetary gearset. The second power path includes a third sliding synchronizer clutch and a second planetary gearset. In addition, the first and second power paths share a common brake. The transmission provides a plurality of forward speeds, a braked neutral and a reverse drive. The transmission may be applied in either front wheel or rear wheel drive vehicles.

Abstract: A multi-speed power transmission has two simple planetary gear sets interconnected to provide a planetary arrangement. The planetary arrangement has input members selectively connectible by a plurality of friction clutches to a prime mover through two distinct input ratio gear sets. One member of one of the simple planetary gear sets is selectively connectible with both input ratio gear sets via two of the clutches. Two additional clutches and two friction brakes are also included, whereby six forward speed ratios and two reverse speed ratios are attainable by engaging selective combinations of the clutches or clutch and brake.

Abstract: A multi-speed power transmission has two simple planetary gear sets interconnected to provide a multi-speed planetary arrangement. The planetary arrangement has input members selectively connectible by a plurality of friction clutches to a prime mover through two distinct input ratio gear sets. One member of the one of the simple planetary gear sets is selectively connectible individually with both input ratio gear sets via two of the clutches. Two additional clutches and two friction brakes are also included, whereby eight forward speeds and two reverse speeds are attainable by engaging selective combinations of the clutches or clutch and brake.

Abstract: A multiple rotation materials processor for trituration or mixing of materials comprises a first and second coupled differential gear assemblies rotatingly positioned on a mount, and an outer container rotatingly coupled to a first differential gear assembly containing an inner container in which processants to be triturated or mixed are stored. A first motor fixed to the mount rotates the coupled gear assemblies about a first axis wherein the outer container revolves thereabout. A second motor fixed to an opposite side of the mount, and cylinder container mounted on the rotating second gear assembly and effected by a second axis perpendicular to the coupled rotation of the gear assemblies. A gas conduit leads into a space within the outer container surrounding the inner container whereby the ambient temperature and pressure of the processant can be controlled.

Abstract: A lightweight and compact apparatus is provided for altering and controlling the pitch of a plurality of rotating blades during rotation using a mechanical clutch and gear arrangement driven by a rotational speed differential between the blade drive shaft and the blades. A first set of clutches and gears controls the direction of rotational power to the pitch change mechanism and is disengaged from rotation when desired blade pitch is established. A second set of clutches and gears controls the speed of rotational power applied to the pitch change mechanism. This pitch change mechanism includes a failsafe capability against pitch change through disengagement of the directional clutches except when needed, and an inherent rotational lock resulting from the rate change clutches' bias to simultaneous engagement. Variation of that speed of rotational power permits coarse and fine pitch adjustments at variable rates.

Abstract: A torque distributing differential for distributing torque from an input element to two output elements and including a first planetary carrier connected to one of the two output elements of the differential and a sun gear coupled to the other of the two output elements. A second planetary carrier of a planetary gear type torque distributing mechanism coupled to the other of the two output elements. An external tooth gear of a ring gear of the torque distributing mechanism and an external tooth gear of the first planetary carrier being operatively connected to each other with a predetermined reduction ratio through a pair of spur gears, so that the sun gear is rotatably driven by a motor.

Abstract: A dual drum drive unit, in particular for a ropeway, with at least one motor includes a transmission unit for dividing the motor power to the drums in order to attain a high efficiency. The transmission unit includes a first gearing which is operatively connected to the motor and has an output, and a second gearing which is operatively connected to the first gearing and has two outputs which are respectively connected to the drums, with the output of the first gearing being selectively connectable with the two outputs of the second gearing.

Abstract: An assembly for receiving input power and delivering that power to a range pack transmission in either a forward or a reverse mode. One or more first gears are drivingly connected to the source of input power. One or more second planet gears are also drivingly connected to the source of input power. The first and second planet gears are meshingly interconnected. The first planet gears meshingly engage a ring gear that may be selectively grounded to effect reverse rotation of the sun gear with respect to the carrier. The second planet gear meshingly engages the sun gear which serves as an output to deliver power from the reversing assembly to a range pack transmission.

Abstract: In a load change-over gear with infinitely variable transmission, which includes a linkage gear (1) driven by a main drive shaft (5), a control gear (2) associated with the linkage gear (1), as well as a switching or change-over gear (4) series-connected after the linkage gear (1), linkage shafts (10 and 11) can be alternately coupled to the switching gear (4). To create a variable switching logic and to save structural components of the switching gear (4), a superposition gear (3) is series-connected after the linkage gear (1) whose input shaft (14) can be coupled alternately to linkage shafts (10 and 11). Superposition gear (3), in which the main drive shaft rpm can be superposed on the rpm of the input shaft (14), in turn includes a linkage shaft (21) that can be coupled directly to a main output shaft (24) or to the switching gear (4).

Abstract: A continuously variable transmission and differential combination including an input shaft 36, a variable speed drive pulley 40 on the input shaft 36, a drive shaft 54, a variable speed driven pulley 500 on the driven shaft 54 and a v-belt 48 trained around the pulleys 40 and 50. A drive sprocket 64 driven by the drive shaft 54 and a driven sprocket 64 with a silent chain 66 trained around them provides a speed reduction drive. The driven sprocket 68 drives a sun gear 88 which drives planet gears 98 that mesh with a stationary ring gear 100. The planet carrier 102 is rotated at a reduced speed. The bevel gears 108 and 112 carried by the planet carrier 102 form a differential that drives axles 114 and 116. A reversing gear drive can be provided between the sun gear 78 and the sun gear 88 to reverse the direction of rotation of the axles 114 and 116.

Abstract: A continuously variable drive train or power train which is a fluid mechanical drive system which is self-contained and self-controlled. It is useful as in a power equipment drive train between a power source and a transfer case, for example. It includes first and second rotatable bell housings, two fluid couplers, and a plurality of inter-connected planetary gear assemblies for transmitting rotational energy from a power source (e.g., an engine) to an output shaft.

Abstract: An actuating mechanism for adjusting the angular relationship of co-axial primary and second drives while both are running comprises a double planetary gear train having a freely rotatable common sun gear (201) and first and second ring gears (213, 223) rotatable relative to each other and each coupled to the sun gear by respective sets of caged planet gears (208, 218). One ring gear (213) is normally held against rotation and the other (223) is adjustable relative thereto. The gear cages are fast with the respective drives.

Abstract: A continuously variable drive train or power train which is a fluid mechanical drive system which is self-contained and self-controlled. It is useful as in power equipment drive train between a power source and a transfer case, for example, etc. It includes first and second rotatable bell housings, two fluid couplers, and a plurality of inter-connected planetary gear assemblies for transmitting rotational energy from a power source (e.g., an engine) to an output shaft.

Abstract: A hydrostatic-mechanical power-distribution transmission with infinitely variable gear ratio in the hydrostatic branch and several ratios in the mechanical branch, which downstream of the coupling gear has shiftable planetary reduction gears for the purpose of reducing the power contribution of the hydrostatic branch in the starting range.

Abstract: A power transmission has three countershaft gear sets which provide selective input members for a pair of interconnected simply planetary gear arrangements. The planetary gear arrangements have the sun gears interconnected, a ring gear and a carrier interconnected, another carrier connected with a transmission output shaft and another ring gear connected with one of the transfer gear sets. The other two transfer gear sets are connected with respective ones of the interconnected members. A plurality of selectively engageable clutches and brakes are arranged to establish input and reaction members for the planetary gear arrangement to provide six forward speed ratios and one reverse speed ratio.

Abstract: A chamber having therein a V-belt type continuously variable transmission is separated from another chamber having therein a differential mechanism. These chambers, however, are in fluid communication with an oil pan via generally vertical holes.

Abstract: A torque converter system is provided with two differential gears, the cage of the first differential gear receiving the power from the engine motion input shaft and the output shaft of the second differential gear cage driving the system output shaft. The two differential gears have their four planetaries coupled two by two, wherein:the engine motion input shaft and the system power output shaft are coaxial;the motion is transmitted through each differential gear by planetary shafts which are coaxial to each other and coaxial to the shaft respectively connected to the input cage and the output cage,a mechanism is provided for the staging of fixed ratios between the rotation speeds at the input and the output; a rotation of the converter system output shaft in one direction and in the other; a disconnection of the output shaft in order to obtain a dead point, and the blocking of the output shaft rotation.