68results about How to "Save axial installation space" patented technology

The invention provides a three-phase flat wire motor stator winding. The three-phase flat wire motor stator winding is characterized in that a stator comprises eight poles and 48 rectangular stator slots formed at equal intervals, a number of layers of conductors in each rectangular stator slot is eight, the stator has three phases of winding structures in total, each phase of winding structure comprises two branch circuits which are connected in series, each phase of winding structure comprises an insertion side and a welding side, each welding side is provided with a power supply leading-outwire, pitch of the insertion sides is 6, each phase of winding structure is a U-shaped wire, an inner layer of the stator winding leads out a serial leading-out wire, and an outer layer of the winding leads out the power supply leading-out wires and a star point connecting wire; and the three-phase flat wire motor stator winding processes the serial leading-out wire connection, star point connecting wire connection and power supply leading-out wire connection of the two branch circuits of the same phase on the outer layer in a centralized manner. The three-phase flat wire motor stator windingsimplifies the winding structure, improves the winding insertion and manufacturing processability, realizes mechanical automatic wire insertion, shortens the size of end portions of the winding, reduces the overall size of the flat wire motor, and reduces the axial installation space of a driving motor.

It is known that two shafts can be connected via Oldham couplings. According to the invention, a coupling device is proposed, wherein recesses (13, 14) and projections (4, 5) of end sections (3, 8) of the shafts (1, 6) extend radially and a coupling member (15) substantially surrounds the two end sections (3, 8) of the two shafts (1, 6), wherein both end sections (3, 8) lie directly opposite each other. Accordingly, corresponding projections (26, 27) and recesses (17, 18) are provided on the coupling member (15) for the transmission of torque. Such a device reduces the axial installation length of a coupling device of this type.

The invention discloses a hybrid power speed changer transmission structure and a vehicle. An engine and a motor are included, and an input shaft of a speed changer is connected with an output shaft of the engine and an outer gear ring and further connected with a speed changer shell through a one-way clutch or a brake. The motor is connected with the input shaft of the speed changer through a fourth clutch, and a motor output shaft is connected with a sun gear. A planet row output gear is connected with a planet carrier. A first input gear, a first-gear driving gear and a third-gear driving gear are arranged on a first intermediate shaft, a second input gear, a reverse gear, a second-gear driving gear and a fourth-gear driving gear are arranged on a second intermediate shaft, and a first-gear driven gear, a second-gear driven gear, a third-gear driven gear, a fourth-gear driven gear and an output shaft main reduction gear are arranged on an output shaft of the speed changer. The first input gear and the second input gear are both meshed with the planet row output gear and correspondingly output power to the first intermediate shaft and the second intermediate shaft through a first clutch and a second clutch. The reverse gear is meshed with the first-gear driven gear and outputs power to the second intermediate shaft through the third clutch. The transmission efficiency is high, engine intervention and exit are smooth, and the axial size is small.

The invention relates to a fuel pump (1), which in particular serves as a pump arrangement for fuel injection systems of air-compressing, self-igniting internal combustion engines, comprising at least one housing part (3), a first toothed wheel (15) and a second toothed wheel (16). The toothed wheels (15, 16) are arranged in the housing part (3). Furthermore, the toothed wheels (15, 16) intermesh in order to form a gear pump (17). The invention further relates to an inlet or return (35, 36) for the gear pump (17), which is provided in the housing part (3).

The invention relates to a clutch device comprising two sub-clutches (2, 3) having a common torque input element on the drive side and transmitting torque on the driven side to two separate output elements, and The sub-clutches respectively comprise an outer plate holder (4, 17) having an outer piece (5, 26) and an inner piece holder (7, 20) having an inner piece (8, 21) and an axially movable operating element ( 11, 24), by means of the actuating element, the set of sheets respectively formed by the outer piece and the inner piece (5, 8, 26, 21) can be pressed, wherein at least one sub-clutch(2, 3) The actuating elements (11, 24) are arranged in a rotatable manner on the driven side.

The invention provides a crossed roller bearing and a speed reducer. The crossed roller bearing comprises an outer ring bearing, an inner ring bearing arranged coaxial with the outer ring bearing, anda rolling assembly arranged between the outer ring bearing and the inner ring bearing, wherein the outer ring bearing is provided with a first outer circular ring and a second outer circular ring which are coaxially arranged along the axial direction of the outer ring bearing, the inner diameter of the first outer circular ring is smaller than the inner diameter of the second outer circular ring,the inner ring bearing is located on the inner side of the second outer circular ring, and the rolling assembly is located between the inner ring bearing and the second outer circular ring; and the inner circumference of the first outer circular ring is provided with a first inner gear ring, and the inner circumference of the inner ring bearing is provided with a second inner gear ring. The crossed roller bearing can be directly applied to the NGWN type speed reducer or the NN type speed reducer, and can substantially reduce the axial installation space required by the NGWN type speed reduceror the NN type speed reducer at the same time, so that the speed reducer is compact in structure, simple and good in reliability, and can achieve high-precision and high-rigidity transmission.

The invention relates to an end face sealing structure of a shaft tail of a fuel pump and belongs to the technical field of product structures. The end face sealing structure of the shaft tail is simplified, the axial mounting space of the shaft tail sealing device of the gear pump is reduced, reduction of weight of a product is achieved, meanwhile, the shaft tail assembling difficulty is reduced, and defects in the prior art are overcome. According to the technical scheme adopted for achieving the purposes, according to the end face sealing structure of the shaft tail of the fuel gear pump, the fuel pump is used for aero-engines; and the sealing structure is a movable and static ring sealing structure which comprises a static ring assembly (a static ring) and a sealing end face (a movable ring) of a driving gear of the fuel pump.

A multi-speed transmission in planetary design for a vehicle includes a housing, a first shaft is provided as a drive (An), and a second shaft provided as an output arranged axially parallel to the drive. Three planetary gear sets and additional shafts along with six shifting elements are provided. Machine elements (ST1, ST2) are provided for transfer of torque between the drive (An) and the output (Ab). The first shaft (1) is connectable to the ring gear of the third planetary gear set, to the sun gear of the first planetary gear set, to the sun gear of the third planetary gear set, to the planetary gear carrier of the first planetary gear set and to the first machine element. The second shaft is connected or connectable to the first machine element and to the second machine element.

The invention relates to a high-power-to-weight-ratio integrated large-load-bearing all-electric rotation actuating device which comprises an outer cavity, threaded rollers, an inner cavity, a planet gear, a planet carrier, a stator sleeve, a rotor sleeve, a sun gear and the like. The stator cooling fins are mounted at the outer side of the stator sleeve and are used for cooling a motor stator; the motor stator and a permanent magnet are respectively arranged at the inner side of the stator sleeve and the outer side of the rotor sleeve, the motor stator and the permanent magnet form an integrated permanent magnet synchronous motor; the planet gear, the sun gear arranged at the outer side of the rotor sleeve and an outer gear ring arranged at the inner side of the stator sleeve form a planet gear reducer; multiple sections of annular raceways of the outer cavity and the inner cavity are meshed with the zero-lead threads of the threaded rollers to form a high-load-bearing integrated bearing; the outer cavity is installed on the end face of a fixed shell, and the inner cavity is fixedly connected with an output flange, and various sensors are integrated in the device. According to the present invention, the problems that an existing rotary actuating device is large in size and weight are solved, and the integration degree, the power-to-weight ratio and the loading capacity of the all-electric actuating device are improved.

A multi-speed transmission in planetary design for a vehicle with a housing (11) includes a first shaft 1 (1) provided as a drive (An) and a second shaft (2) provided as an output (Ab) that is arranged axially parallel to the drive. Three planetary gear sets (RS1, RS2, RS3) and additional shafts (3, 4, 5, 6, 7, 8, 9) along with six shifting elements (K1, K2, K3, K4, B1, B2) are provided, through which the actuation of several gears are realized. Machine elements (ST1, ST2) are provided for the transfer of torque between the drive (An) and the output (Ab). The first shaft (1) is connectable, as a drive, to the sun gear (SR3) of the third planetary gear set (RS2), to the planetary gear carrier (PT2) of the second planetary gear set (RS2), to the planetary gear carrier (PT3) of the third planetary gear set (RS3), and is connectable or connected to the sun gear (SR1) of the first planetary gear set (RS1). The second shaft (2) is connected or connectable, as a drive (Ab), to the first machine element (ST1) and to the second machine element (ST2).