618results about How to "Increase gear ratio" patented technology

A transmission includes a pair of conical transmission element carriers with one being a drive carrier and one being a driven carrier. The drive carrier has a plurality of fixed drive elements attached. The driven carrier has a plurality of fixed driven elements attached. An endless connecting element rotationally couples a drive carrier element to a driven carrier element to provide a transmission output ratio. Also, a shift element means transfers the endless connecting element between a selected drive element to a corresponding driven element to establish a change in the rotational ratio between the drive carrier and the driven carrier.

A hyper-spectral imaging filter has serial stages along an optical signal path in a Solc filter configuration. Angularly distributed retarder elements of equal birefringence are stacked in each stage, with a polarizer between stages. The retarders can include tunable (such as abutted liquid crystals tuned in unison), fixed and / or combined tunable and fixed birefringences. Although the retardations are equal within each stage, distinctly different retardations are used for two or more different stages. This causes some stages to pass narrow bandpass peaks and other stages to have widely spaced bandpass peaks. The transmission functions of the serial stages are superimposed with selected preferably-tunable peaks coinciding. The resulting conjugate filter has a high finesse ratio, and good out of band rejection.

A differential gearing unit with controllable torque and rotational speed distribution, composed of a housing (1), a differential gearing (6), a superposition gearing (7) and an auxiliary drive (8), with the differential gearing (6) comprising an input member (11) which is driven by the vehicle engine, and two output members (15, 16) with output shafts (3, 4), and with the superposition gearing (7) being a planetary gear set which is connected to two members (15, 16) of the differential gearing (6) and to the auxiliary drive (8). In order to provide precise control with a low-power auxiliary drive, the superposition gearing (7) comprises a first (22) and a second (27) sun gear, a first (20) and a second (25) ring gear and first (21) and second (26) planet gears on a common planet carrier (28), with the first (21) and second (26) planet gears meshing in each case with the first (22) and second sun gear (27) respectively and with the first (20) and second ring gear (25) respectively, and with a ring gear being rotationally fixedly connected to an output shaft.

The engine disclosed features an engine cylinder provided with an air intake valve, an injector having a fuel injection port which is directed towards an interior of the engine cylinder, and a control unit which is connected to the air intake valve and to the injector, the control unit effecting changes in the air intake amount by controlling the degree of opening of the air intake valve, and, also, controls the air / fuel ratio by changing the amount of fuel supplied by the injector. The engine also has an exhaust valve in the engine cylinder such that the control unit controls the intake valve and the exhaust valve so that an opening period of the intake valve is overlapped with an opening period of the exhaust valve at least when the opening period of the intake valve is maximum. The period of the overlap is longer when a relatively large amount of air is required than when a relatively small amount of air is required. According to such a scheme, the amount of the air can be changed by the lift of the intake valve. By changing the lift, the overlap with an exhaust valve is also changed. During the high-output or power operation, the period of overlap between the exhaust valve and the intake valve is made longer. When engine torque decreases to a level lower than the target engine torque, the air amount is adjusted by the cam or the throttle valve.

A planetary gear train of an automatic transmission may include an input shaft; an output shaft; first to fourth planetary gear sets and six control elements disposed at a portion selectively connecting the rotation elements and the rotation elements or a portion selectively connecting the rotation elements and the transmission housing, wherein the input shaft is continuously connected to the third rotation element, the output shaft is continuously connected to the twelfth rotation element, the first rotation element is continuously connected to the transmission housing, the fourth rotation element is continuously connected to the seventh rotation element, the fourth rotation element is continuously connected to the tenth rotation element, the eighth rotation element is continuously connected to the twelfth rotation element, the fifth rotation element is selectively connected to the transmission housing.

A transmission system is provided utilizing multiple sets of clutch friction elements, each engaged to transfer torque from a torque input, such as an engine, to different gear ratios. The sets of clutch friction elements are operated simultaneously to provide a blended, gear ratio to a drivetrain. By varying the engagement of the clutch elements, and thus the proportion of the torque transferred to the gear ratio associated with each set of friction elements, an intermediate, effective gear ratio is developed. This effective gear ratio can be increased or decreased in response to external stimuli, such as vehicle and / or engine sensors, by modifying the degree of engagement of each set of clutch friction elements, and thus the proportion of torque transferred by each set of elements to its associated gear ratio.

A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving rotary power of an engine, an output shaft outputting the rotary power with rotary speed changed, a first planetary gear set including a first, a second, and a third rotating element, a second planetary gear set including a fourth, a fifth, and a sixth rotating element, a third planetary gear set including a seventh, an eighth, and a ninth rotating element, a fourth planetary gear set including a tenth, a eleventh, and a twelfth rotating element, and seven control elements disposed between one of the rotating elements and another of the rotating elements or the input shaft, between one of the rotating elements and the output shaft, or between one of the rotating elements and a transmission housing.

An all-wheel drive with hybrid drive has an internal combustion engine (1), a first drive train (4) for a first driven axle (2), a second drive train (10) for a second driven axle (3), an electric machine (15) in the second drive train (10; 110), and a first clutch (20) upstream of the electric machine (15) and a second clutch (21) downstream of the electric machine (15). In order to improve all the electrical functions and to provide an all-wheel drive which meets all requirements, the electric machine (15) is composed of a stator (17) and of a rotor (18) which is connected to a first element (44) of a three-element planetary gear mechanism (19), whose second element (45) is connected to the first clutch (20) and whose third element (46) is connected to the second clutch (21).

A transmission system is provided utilizing multiple sets of clutch friction elements, each engaged to transfer torque from a torque input, such as an engine, to different gear ratios. The sets of clutch friction elements are operated simultaneously to provide a blended, gear ratio to a drivetrain. By varying the engagement of the clutch elements, and thus the proportion of the torque transferred to the gear ratio associated with each set of friction elements, an intermediate, effective gear ratio is developed. This effective gear ratio can be increased or decreased in response to external stimuli, such as vehicle and / or engine sensors, by modifying the degree of engagement of each set of clutch friction elements, and thus the proportion of torque transferred by each set of elements to its associated gear ratio.

The invention relates to a crosshead shoes driving reducer for a multi-joint robot. The crosshead shoe driving reducer for the multi-joint robot comprises input shafts, output shafts, reducer bodies, crosshead shoes, transmission balls, track controllers and drive balls. The input shafts, the crosshead shoes, the track controllers and the output shaft are installed in the reducer bodies. Transmission tracks used for the installation of the transmission balls are arranged in the crosshead shoes. The transmission balls move in the transmission tracks to convey the movement of the input shafts to the track controllers. Moving track used for the installation of the drive balls are arranged on the lower surfaces of the track controllers. The track controllers adjust the output of the output shafts through the drive balls. According to the crosshead shoe driving reducer for the multi-joint robot, automatic adjustment for complete consistency of movement and eccentric magnitude of an eccentric shaft is achieved, the tracks of the transmission balls and the tracks of the track controllers of the reducer are completely consistent, the output of the reducer is stable, and the mechanical wear rate is low.

The invention relates to a combination cylinder including a service brake cylinder as an active service brake with at least one pressure-medium-actuated service brake piston which actuates a brake mechanism via a service brake piston rod, and a spring store brake cylinder as a passive parking brake with a spring store brake piston which is actuated by pressure medium counter to the action of at least one store spring, with the spring store brake piston transmitting the force of the at least one store spring to the service brake piston rod by a force-transmitting gearing in the parking braking situation. The invention provides for the gearing to be designed such that the movements of the spring store brake piston and of the service brake piston rod are coaxial and the force transmission ratio becomes greater with progressive stroke of the spring store brake piston.

The invention relates to a portable folding bicycle. Frame connecting rods are reduced to the maximum by a telescopic pipe body nested on a frame and pivot folding, and thereby frame pipe fittings can be rapidly shortened by about half the size; the front wheel and the rear wheel are placed together in parallel after the frame is folded, thereby also reducing the size of the bicycle body to the greatest extent and saving materials and the manufacture cost. The transmission ratio is increased by a multiplying gear configured on the bicycle, thereby enabling minor-diameter wheels used by the bicycle to reach the running speed of big wheels; handle bars and foot pedals can be folded, the folding dimension of the bicycle is about 60*20*10 cm, and the weight is about 5kg, therefore, the bicycle can be carried in a hand bag or a packsack.

The present invention provides a seat adjustment device for an aircraft or spacecraft, comprising:a seat rail for connection to a floor; anda seat connection for connection to at least one seat;and a worm is provided which can be actuated to adjust the seat connection relative to the seat rail.

Nine or more forward speeds and at least one reverse speed are achieved by a planetary gear train of an automatic transmission for a vehicle including an input shaft, an output shaft, four planetary gear sets respectively having three rotational elements, and six control elements for selectively interconnecting the rotational elements.

The invention discloses a flapping wing and turning device of a micro aerial vehicle. The flapping wing and turning device comprises a flapping wing rocking rod, a round pin, a connecting plate, a driving motor, a connecting rod, an installing frame, a gear, a turning rod, a tail wing supporting plate, a turning motor, a swinging arm, a rotating component and a swinging frame, wherein the driving motor drives a first-grade pinion to rotate, and the first-grade pinion drives a double-layer gear to rotate, and the double-layer gear drives second-grade gears at two sides to rotate, and the second-grade gear drives the connecting rod to move, and the connecting rod drives a left wing connecting plate, a right wing connecting plate and a flapping wing rocking rod to swing up and down so as to achieve the flapping of the wing. The turning motor drives a rocking frame to rock, the rotating component in the rocking frame drives the rocking arm to rotate around the round pin, so that the angles of two turning rods are deviated, and as a result, the aerial vehicle can be turned. According to the flapping wing and turning device, the flapping wing and the turning device are integrated, so that the benefit is brought to the microminiaturization of the flapping wing aerial vehicle; and meanwhile, the flapping wing and turning device has the characteristics of being simple in structure, flexible and small.

The invention relates to a transition gear and a transition gear train, aiming at providing the simple, practical and high-efficiency gear and the gear train used as a force conversion system for a reciprocating piston type heat engine. The transition gear is an incomplete gear with deformed tooth profile, and the tooth profile is deformed so that the transition gear can be the one with close contact and repeatedly changed speed direction and speed degree to form a gear pair. The transition gear train at least comprises one transition gear. In the rack transition gear train, the transition rack is in close contact with the tooth profile of the transition gear to make equidirectional or reversed motion or to be stationary so that the rack moving in a reciprocating manner can transfer the motion to the transition gear without rigid compact and the pushing force of fuel gas can be redistributed to drive a crankshaft to rotate.

A planetary gear set of an automatic transmission for a vehicle may include input and output shafts for receiving and outputting torques, first to fourth planetary gear sets respectively forming first to third, fourth to sixth, seventh to ninth, and tenth to twelfth rotational elements, and six control elements each of which selectively interconnects a corresponding pair among the input and output shafts, the rotational elements, and a transmission housing, where the input and output shafts are fixedly connected to the first and eleventh rotational elements respectively, respective pairs of the first and sixth rotational elements, the second and ninth rotational elements, the third and tenth rotational elements, the fifth and eleventh rotational elements are fixedly interconnected, and the seventh rotational element is selectively connected to the transmission housing.

The invention relates to a portable multi-mode controlled hand function rehabilitation training device, wherein a four-fingered driving mechanism and a four-fingered reducing mechanism are arranged on a thumb plate; a thumb driving mechanism and a thumb reducing mechanism are arranged on the thumb plate; the four-fingered driving mechanism is connected with a connecting rod mechanism by the four-fingered reducing mechanism; the connecting rod mechanism is connected with a curved chute mechanism and a self-adaption finger adjusting mechanism; the curved chute mechanism is driven by the four-fingered driving mechanism, so that the movement of metacarpal joints and the movement of proximal phalangeal joints are realized; the thumb driving mechanism is connected with a thumb driving connecting rod mechanism by the thumb reducing mechanism; the driving connecting rod mechanism is connected to a thumb curved chute mechanism; the front end of the thumb curved chute mechanism is connected with a non-elastic bandage for thumbs; the thumb driving mechanism drives the thumb curved chute mechanism to prompt thumb joints to move. According to the portable multi-mode controlled hand function rehabilitation training device, two micro-motors are used for realizing single training of thumbs, and joint training and grabbing training of four fingers; the independent movements of thumb metacarpophalangeal joints, four-finger metacarpophalangeal joints and proximal phalangeal joints under a simple structure are realized.

The invention relates to a following type driving speed reducer for a joint robot. The following type driving speed reducer comprises an input shaft (2), an output shaft (16), a machine casing (11), a back press plate (4), a differential gearbox (12), a bearing upper cover (14), and a bearing lower cover (17), wherein a following plate (7) is arranged between the differential gearbox and the back press plate; a V-shaped rail (20) of a surface A is arranged on the surface A of the following plate, a V-shaped rail (21) of a surface B is arranged on the surface B of the following plate, a first crossing roller (5) is arranged on the V-shaped rail (20), and a second crossing roller (8) is arranged on the V-shaped rail (21); a transmission track (22) for installing the first crossing roller is arranged on the back press plate; a movement track (19) for installing the second crossing roller is arranged on the surface of the differential gearbox. The following type driving speed reducer has the advantages that the movement of the input shaft (eccentric shaft) is automatically adjusted to be completely engaged with the eccentric quantity, the tracks of the transmission ball and the differential gearbox of the speed reducer are completely engaged; the output of the speed reducer is stable, and the mechanical loss rate is low.

A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft configured to output changed torque of the engine, a first planetary gear set including first, second, and third rotation elements, a second planetary gear set including fourth, fifth, and sixth rotation elements, a third planetary gear set including seventh, eighth, and ninth rotation elements, and a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements.

The invention relates to a polishing and grinding device for workpieces, and in particular to a multi-stage transmission type polisher. The multi-stage transmission type polisher comprises a vertical column, a cross arm and a grinding barrel. The cross arm is connected with a lifting system. A grinding device connected to the cross arm is arranged over the grinding barrel. The grinding device comprises a drive motor, a main shaft, a rotating system and a grapping disc. The rotating system comprises a primary planet wheel rotating system and a secondary planet wheel rotating system. The drive motor drives the primary planet wheel rotating system to rotate through the main shaft. The primary planet wheel rotating system drives the secondary planet wheel rotating system to rotate. The secondary planet wheel rotating system drives the grapping disc to rotate. The polishing and grinding device has the following beneficial effects that 1, the machining number of the workpieces is large, the machining speed is high, and production efficiency is high; and 2, grinding is complete, the grinding effect is good, and the surface finish degree is high.

The present invention relates to a transfer case for distribution of a driving force on a first axle (9) and a second axle (8) of a motor vehicle. The transfer case (1) is arranged between the first axle (9) and the second axle (8). The transfer case (1) includes a planetary gear (3) with a central gear (4) (for example, a sun gear), a central gear (5) (for example, an internal gear), and a planetary pinion support (6) with multiple planetary pinions (7), as well as an electrical machine (2). The electrical machine (2) is connected with an element (4, 5, 6) of the planetary gear (3). The distribution of the driving force on the two axles (8, 9) takes place according to the present invention by means of controlling the electrical machine (2), in order to produce a predetermined moment of rotation on of the elements of the planetary gear (3), whereby the moment of rotation of the two other elements of the planetary gear, which is connected respectively with one of the axles, are fixed.

A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving power of an engine, an output shaft configured to output shifted power, a first planetary gear set including first, second, and third rotation elements, a second planetary gear set including fourth, fifth, and sixth rotation elements, a third planetary gear set including seventh, eighth, and ninth rotation elements, a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements, and six control elements which are disposed between the rotation elements, and disposed at portions where the rotation elements are selectively connected to a transmission housing.

A load limiting mechanism for a motor vehicle, comprising at least two parts (1, 2, 10, 12, 16, 20, 21, 46, 22, 40) controlled relative to one another with a frequency controlled oscillating movement. The parts (1, 2, 10, 12, 16, 20, 21, 46, 22, 40) moving relative to one another comprise interlocking gears (3, 4, 13, 15, 24, 25, 26, 27) and the frequency controlled oscillating movement results thereby that at least one of the parts (1, 10, 21, 22) compared to the other part (2, 12, 16, 20, 40, 46) executes a wavelike oscillating feed motion, in which the gears (3, 4, 13, 15, 24, 25, 26, 27) alternately become engaged and disengaged thereby dissipating energy.

In a double clutch transmission with a winding path power flux arrangement, which has two countershafts arranged coaxially with respect to one another and with seven forward gears and a plurality of reverse gears, for selected gears the power flux extends from a part region of the transmission forward and then again back to another part region of the transmission in such a way that only four shift clutches are needed for shifting through all the gears.

An electric power steering apparatus includes a reduction gear mechanism (17) for reducing the rotation speed of an output shaft (16) of an electric motor (15). The reduction gear mechanism (17) comprises an inscribed gear (39) rotatable interlockingly with the output shaft (16), and a circumscribed gear (40) in which the inscribed gear (39) is inscribed. An endless belt connects a driving pulley (41) integrally rotatable with the circumscribed gear (40) and a driven pulley (42) disposed so as to surround a steerable shaft. By heightening the reduction gear ratio by the speed reduction using the inscribed gear (39) and the circumscribed gear (40), the reduction gear mechanism (17) as a whole can achieve a high reduction gear ratio without making the diameter of the driving pulley (41) very small.