270results about How to "Sufficient torque" patented technology

In a hybrid vehicle drive system, an output shaft of an internal combustion engine is connected to a first motor generator and a wheel drive shaft through a power distribution mechanism, and the wheel drive shaft is connected to a second motor generator. The hybrid vehicle drive system is provided with a device that increases the torque of the wheel drive shaft separately from the second motor generator when the internal combustion engine is cranked by the first motor generator.

The invention provides an insertion instrument and methods for rotatably inserting an insertable medical device into a target region of the body. In particular, the instrument can be used in a method for rotatably inserting a medical device having a helical shape into a portion of the eye. The instrument includes a distal portion with a securing member that can hold a portion of the device during the rotational insertion process, and an actuating member that can be triggered to gently release the device upon insertion of the device into the target site.

A wheelchair type robot for use as a walking aid wherein an outer skeleton to be worn on the lower body of a user is combined with a lift and a drive part in a wheelchair form. The drive part is furnished with a drive motor and wheels that are installed on a main frame. The lift is furnished with an outer linear guide that is fixed and joined with the main frame, an inner linear guide that can move up and down along same, an upper chair part that connects with the inner linear guide to enable up and down motion, and a lower chair part that connects with the outer linear guide such that unfolds if the inner linear guide descends and folds if it ascends. The outer skeleton is furnished with a lift locking part that is fixed and joined with the upper chair part, an upper frame whereto a thigh brace is joined, a lower frame whereto a calf brace is joined, a hip part that is installed between the lift locking part and the upper frame to rotate the upper frame around the lift locking part, and a knee joint part that is installed between the upper frame and the lower frame to rotate the lower frame around the upper frame.

A driving unit for a washing machine, and method for controlling the same. The driving unit includes a bearing housing fixedly secured to an outer tub. A motor is mounted on the bearing housing. A ring gear shaft is rotatably mounted to the bearing housing and is coupled to an inner tub. A carrier shaft is rotatably mounted in the ring gear shaft, with a driving shaft rotatably mounted in the carrier shaft. The driving shaft is coupled to the motor. A reduction gear is positioned between the ring gear shaft and the carrier shaft to reduce a speed of the ring gear shaft. A one directional holding device that holds the carrier shaft when the driving shaft rotates in a first direction, and holds two of the carrier shaft, the ring gear shaft, and the driving shaft when the driving shaft rotates in a second direction.

A rotational drive apparatus for screw pilings is described. The apparatus comprises a housing having a cylindrical pipe coupling adapted to receive a shaft of a screw piling therethrough. A detachable connecting element secures the coupling to the shaft at different positions along the shaft. A rotational drive is provided within the housing for imparting rotation to the coupling. An elongated rod is secured to the housing and is held by a user person whereby to immobilize the housing wherein to permit the rotational drive to transmit a drive force to the coupling to rotate the shaft of a screw piling.

A method is for controlling a hybrid drive of a vehicle, which includes at least one internal combustion engine and at least one electric machine, having a first clutch situated between the electric machine and the drive train of the vehicle and a second clutch situated between the electric machine and the internal combustion engine. In the method, a predefinable clutch torque is applied to the second clutch for a start of the internal combustion engine by the operating electric machine, the rotational speed of the internal combustion engine is monitored, and the clutch torque is incremented to a higher value if the rotational speed of the internal combustion engine is less than a predefinable threshold value within a predefinable time interval.

Device for mounting a tethered camera on a portable computer, including a base attached to a back of the computer's screen housing via an adhesive, a holder for the camera removably engaged to the base via cooperating mating members formed thereon, and a hinge in the holder allowing movement of the camera. The hinge includes two coil springs assembled over a pair of split shafts incorporated in the holder to provide a relatively high friction force on a pair of pins non-movably attached to the camera. The camera and holder combination can be attached to or detached from the base as need be, but the base can remain unobtrusively attached to the housing. When attached to the housing, the camera is stably held in position to allow easier hands-free use of the camera. A separate stand is also provided which can similarly mated with the holder.

The present invention discloses an adjustable base for a portable saw and a portable saw therefore. The base includes a longitudinal shell secured to the housing, and mounted to a baseplate. A shaft is mounted to the housing extending through a slot formed in the shell. A collar is connected to the shaft and has a first cam surface cooperating with a corresponding second cam surface of the housing. Rotation of the collar in an unlocked direction extends the shaft away from the housing. A clamp member is received within a shell inner region and cooperates with the shaft. The shaft is threadably engaged to one of the collar, the housing or the clamp member so that rotation of the collar in the unlocked direction either extends the shaft further away from the housing or extends the clamp member along the shaft away from the housing.

A start system for a gas turbine engine delivers starter current according to a schedule selected according to measured rotational speed and oil temperature of the gas turbine engine.

The invention discloses a small crawler-type cleaning device. The small crawler-type cleaning device comprises a shell, a handle device arranged on the upper portion of the shell, a liquid adding mechanism, a water squeezing mechanism and a cleaning mechanism; the liquid adding mechanism comprises a button cavity formed in the handle device, a liquid adding button located in the button cavity and a water tank fixed in the shell; the water squeezing mechanism comprises a water squeezing switch, a liftable roller mechanism arranged on the top of the shell and a suction box fixed in the middle of the shell; the cleaning mechanism comprises two hollow crawler wheels, a crawler belt installed on the outer edges of the crawler wheels, a cleaning cloth layer arranged on the surface of the crawler belt and driving motors, wherein each driving motor is arranged in a hollow cavity of the corresponding crawler wheel and used for driving the crawler wheel to walk. According to the small crawler-type cleaning device, the liquid adding mechanism, the water squeezing mechanism and the cleaning mechanism are combined, the structure is compact, use is convenient, carrying and storing are convenient, and the time and the physical power are saved by adopting the motor driving mode.

An apparatus for controlling the driving force of a vehicle is capable of using brakes to limit a differential operation, securing sufficient torque, and suppressing the heating and wearing of the brakes. In the vehicle, an engine generates torque to drive front wheels and / or rear wheels. A front differential allows differential rotation between the front wheels and transmits torque of the engine to the front wheels. A rear differential allows differential rotation between the rear wheels and transmits torque of the engine to the rear wheels. Disk brakes separately brake the front and rear wheels. An ABS / attitude electric control unit controls the disk brakes to limit differential rotation between the front wheels or between the rear wheels. At least one of the front and rear differentials is provided with a differential limiting mechanism.

A pitch drive system for a wind turbine is provided which comprises a regulation drive for regulating the pitch of a rotor blade of the wind turbine during normal operation, the regulation drive comprising at least one drive train, and an emergency drive for pitching the rotor blade in case of emergency, the emergency drive comprising at least one drive train, wherein the at least one drive train of the emergency drive is separate from the at least one drive train of the regulation drive.

A power generator is provided having one or more reservoirs. Each reservoir has an inlet and an outlet. A float is disposed in each reservoir. A shaft is connected to each float. Controls are provided for actuating each inlets and outlet to cause water to flow into and out of each reservoir via its corresponding inlet and outlet, respectively. As a result, the flowing water moves each float in a vertically oscillating manner to rotate the shaft at an output a rate suitable to generate usable power. Also provided are a method for generating electricity and an energy converter that converts vertical float movement into rotational energy.

The present invention discloses an adjustable base for a portable saw and a portable saw therefore. The base includes a longitudinal shell secured to the housing, and mounted to a baseplate. A shaft is mounted to the housing extending through a slot formed in the shell. A collar is connected to the shaft and has a first cam surface cooperating with a corresponding second cam surface of the housing. Rotation of the collar in an unlocked direction extends the shaft away from the housing. A clamp member is received within a shell inner region and cooperates with the shaft. The shaft is threadably engaged to one of the collar, the housing or the clamp member so that rotation of the collar in the unlocked direction either extends the shaft further away from the housing or extends the clamp member along the shaft away from the housing.

An object of the present invention is to provide a three-phase brushless DC motor providing a high torque and performs stable operations which can be used even when an installation space is restricted. To achieve the object, the present invention adopts an inner rotor-type three-phase brushless DC motor in which an inner rotor-type three-phase brushless DC motor comprising a rotor provided with a plurality of magnetic poles divided equally in a circumferential direction at an outer peripheral of the rotor and a stator separately arranged along an outer peripheral of the rotor, wherein the stator is provided with M−n (wherein, n is an integer equal to or larger than 1) of stator sections each provided with three stator poles each having different phases, and the relationship between number of magnetic poles provided in the rotor and the total number of stator poles is made different from the conventional one.

A powered valve actuator assembly converts a manually operated valve without removal of the valve handle for automated valve operation in response to detection of a preselected condition. The design incorporates a motor, motor control circuit, drive shaft, valve handle engaging member and anti-rotation member. The motor is supported by its drive shaft, which is mounted on the valve handle via an adaptor. The motor, when operated, applies rotational torque to the drive shaft, and is secured from counter rotation about the drive shaft by the anti-rotation member, which extends between the motor and a fixed reference point with respect to the valve body such as the conduit or an extension thereof. The control circuit may incorporate a monitoring sub-circuit and power regulator, which operates at reduced power levels depending on the sensed state of the sensor or sensors.

The screw tightening apparatus includes a motor, an output shaft to which a bit for screw tightening is connected so as to be rotatable integrally with the output shaft and which is axially movable, the output shaft being driven to be rotated by the motor, a spring whose one end contacts a member constituting a main body of the screw tightening apparatus, and a spring receiving member which the other end of the spring contacts and transmits a biasing force of the spring to the output shaft. The screw tightening apparatus further includes a conductive member which contacts the output shaft and the spring receiving member. This configuration enables static electricity generated on the bit to certainly flow into the main body of the apparatus (ground) via the output shaft, the conductive member, the spring receiving member, and the spring.

A turbine assembly and a system for extracting tidal energy are disclosed. The turbine assembly may include identical sections disposed in a stacked arrangement. Each section may be shaftless, energizable by a fluid flow to produce lift and is appropriately oriented at a phase shift to an adjacent section such that a relatively constant resultant torque output with small amplitude fluctuation is generated by rotation of the turbine assembly. The turbine assembly may be employed in conjunction with a velocity enhancing device having a housing with variable profile openings to enhance the torque output. The turbine assembly may further be employed in a floating barrage arrangement which is transportable.

A pitch drive system for a wind turbine is provided which comprises a regulation drive for regulating the pitch of a rotor blade of the wind turbine during normal operation, the regulation drive comprising at least one drive train, and an emergency drive for pitching the rotor blade in case of emergency, the emergency drive comprising at least one drive train, wherein the at least one drive train of the emergency drive is separate from the at least one drive train of the regulation drive.

The present invention is a portable wire pulling device that receives and utilizes the rotational power and control features and functions of a cordless, battery-operated electric hand drill to selectively drive a rotatable reel of the portable wire pulling device with sufficient torque and speed to efficiently and quickly pull a wire thereby. The wire pulling device has a frame configured to rotatably carry and selectively position a take-up reel, and a drive interface coupled to the reel and having an input drive shaft configured to receive the hand drill for applying rotational power to the drive mechanism to rotate the reel. No on-site power is needed. The frame extends from a folded position into an upright position and into an angled position in order to pull wire for different applications.

A shoulder ring, for installation in a threaded pipe coupling between the installed pin ends of two pipes being connected by the coupling, has opposing end faces and a central opening, and may lobate or circular in shape. The shoulder ring provides enhanced axial retention within the coupling by incorporating a thread element which engages the internal threads of the coupling to prevent or deter displacement of the ring from the coupling. Alternatively, enhanced axial retention may be provided by means of an interference or interlocking fit that is plastically induced during the ring installation process. The shoulder ring may be of lobate or circular configuration, with the axial retention of lobate embodiments being further enhanced by forces acting radially outward against the coupling due to elastic deformation of the ring during installation. Also disclosed are tools for installing the shoulder rings in a threaded coupling.

An electrically operated drive controller includes first and second electric current command value calculation processors, for calculating first and second electric current command values from a target value of torque of an electrically operated machine; a voltage command value calculation processor, for calculating a voltage command value from the first and second electric current command values; and first and second adjusting value calculation processor, for calculating first and second adjusting values. The first electric current command value calculation processor includes first electric current command value adjustment processors, for adjusting the first electric current command value by the first adjusting value, and an electric current limit processor, for limiting the adjusted first electric current command value. The second electric current command value calculation processor includes a second electric current command value adjustment processor, for adjusting the second electric current command value by the second adjusting value.

A compressor driver for a compressor is provided, wherein at the start of the compressor, a phase of the current flowing in the motor is controlled to be ahead of an induction voltage, then the advancement of the phase is controlled to decrease. Under an unstable condition to detect a position, such as at the start under pressure-difference, the foregoing control allows the phase to advance up to the current-phase where the max. torque can be produced, thereby drawing the instantaneous max. torque of the motor for starting the compressor. Then the control reduces the advancement for obtaining a stable operation.

The present invention provides an apparatus for fixing a steel wire of a wale, which comprises the following components: a fixing body which is cross-beam-shaped, wherein a first end of the fixing body is combined with one end of a prestressed wale, the fixing body is provided with a coupling hole and penetration of one end of the steel wire of the wale through the coupling hole is allowed; an arrester which projects from a front surface of the fixing body for improving shearing force resistance of the fixing body; a guiding plate which has a preset curvature and is integrated with an inner surface of the fixing body for guiding the steel wire to be inserted into the fixing body; and a cushion block which is provided at a second end of the fixing body and fixes the end of the steel wire of the wale.

The invention relates to a double-stator conical adjustable air gap permanent magnet motor, which relates to the field of motors and solves the problem that the prior permanent magnet motor with a conventional structure has low efficiency. An outer stator core, a rotor and an inner stator core are coaxially sleeved together from outside to inside in turn, equal inside air gaps and outer air gaps are formed between the stator core and the rotor, both the outer surface of the inner stator core and the inner surface of the rotor are conical surfaces or cylindrical surfaces, and both the outer surface of the rotor and the inner surface of the outer stator core are conical surfaces or cylindrical surfaces; and a rotor slideway is arranged on an annular opening of a rotor output shaft of a supporting rack, the other rotor slideway is arranged at the end position of an inner rotor of the supporting rack, the rotor output shaft passes through a rotor slideway and is fixed on the supporting rack, the end part of the rotor passes through the other rotor slideway and is fixed in the supporting rack, and the rotor also comprises an air gap adjusting mechanism which is arranged between the end part of the rotor and the other rotor slideway. The double-stator conical adjustable air gap permanent magnet motor has the advantages of good adjusting performance, wide speed-expanding range and sufficient torque.