2951results about How to "Reduce torque" patented technology

A cooling fan for an engine in a vehicle. Ordinarily, a fan rotates within a shroud, which surrounds the fan. Leakage can occur between the tips of the fan blades and the shroud, wherein fan exhaust moves forward, and then passes through the fan again. The invention reduces leakage by placing a surface downstream of the fan. The surface employs the Coanda Effect, to urge fan exhaust to continue in the downstream direction, and not move forward as leakage air.

A support for a pad computer and the like includes a body support strap which may be placed around the neck or shoulders of a user, and a body propping unit that positions a computer outwardly from the torso of the user. The body support strap connects to the body propping member preferably at a location proximately aligned with the center of gravity of the combined mass of the computer and computer support when the body popping member is deployed in its stand-off position. In a preferred variant the body propping member is a U-shaped strut assembly with two arms joined by a bridge. The body support strap connects to the arms. The arms are hinged at the sides of the computer. The bridge may be swung from an in-use orientation spacing the computer outwardly from a user, to a parked position wherein the bridge lies adjacent to an opposite transverse edge of the computer in the plane of the computer.

A system for providing regenerative power for an aircraft to sustain flight includes multiple energy cells disposed within the aircraft, the energy cells being configured to supply power to a propulsion motor and electronics of the aircraft, a fan generator harnessing propeller blast created by an aircraft propeller and converting kinetic energy of the propeller blast into electrical energy, a charger receiving the electrical energy generated by the fan generator and using the electrical energy to recharge one or more of the energy cells, and a power transfer switch selectively connecting one of the energy cells to the propulsion motor and electronics of the aircraft, such that the energy cells are rotated one at a time to power the propulsion motor and electronics. During recharging, the one or more of the energy cells are disconnected by the power transfer switch.

Generally, the invention relates to power generation and energy storage. In particular, to systems and methods for providing constant power from hydraulic inputs having widely-varying pressures. More particularly, the invention relates to hydraulic-pneumatic energy storage and recovery systems that include either a fixed or variable displacement hydraulic motor and control systems that allow a user to maintain constant power from the fixed or variable displacement hydraulic motor.

A removable denture system comprising a support beam fixedly attached to the individual's alveolar ridge above the mucous membrane by a plurality of dental implants, and a denture generally conforming with the dental parameters of the individual and integrated with a supper-structure. The supper-structure comprises at least a portion shaped in confirmation with the support beam, and a denture locking arrangement for removably though fixedly articulating the denture to the support beam preventing unintentional disengagement of the denture.

During downshifting, a control for restricting an output of an engine to constantly maintain electric power balance between a first electric motor and a second electric motor or a control for suppressing a rate of increase in engine rotational speed by a control on the engine, such as ignition timing retardation control or fuel injection amount reduction control, is executed to thereby allow torque of the second electric motor to be reduced during downshifting. In addition, the engine rotational speed is decreased before downshifting, and, after the engine rotational speed is decreased to a rotational speed at which a protection control is not activated, an automatic transmission downshifts. With the above control, it is possible to suppress an increase in rotational speed of the second electric motor during downshifting. Thus, shift shock may be suppressed, and the friction material of the frictional engagement element may be protected.

Embodiments of the invention provide a laparoscopic morcellating device and method for removing tissue from a body cavity. The morcellating device includes a containment mechanism having an aperture, a cutting mechanism designed to fit into an interior space of the containment mechanism and a retractor mechanism that is coupled to the cutting mechanism. The containment mechanism and cutting mechanism combination surrounds the tissue and the aperture of the containment mechanism is closed around the tissue. The morcellating device further includes a motor for actuating the retractor such that the cutting mechanism constricts and morcellates the tissue. The laparoscopic morcellating device further allows for torque balancing of the retractor mechanism, gas flow regulation of the body cavity, and safety feedback mechanisms that can alert the surgeon.

In an image forming apparatus, an area applied with a lubricant, i.e., an area of a lubricant layer having a uniform thickness, is obtained by spreading the lubricant by a lubricant smoothing blade. The area applied with a lubricant covers an area cleaned by a cleaning blade, i.e., a contact portion of the cleaning blade with a photoconductor.

A system and method for generating power includes a motor assembly, an inertia-assisted, torque-enhanced gearbox, including a flywheel assembly and a clutch assembly, and a generator assembly. The motor assembly is used to drive the flywheel assembly up to the generator's designed operating speed. When the flywheel assembly reaches the generator operating speed, the clutch assembly engages and connects the flywheel assembly to the generator assembly. When the flywheel assembly is connected to the generator assembly, it supplies the generator with the starting torque required to start the generator. The motor assembly then supplies the torque necessary to operate the flywheel assembly and the generator assembly at the generator's designed operating speed. When the generator encounters peak loads, the flywheel assembly also supplies peak load torques to the generator assembly. The generator assembly is operable to supply power to a load connected to the generator assembly.

A hydrodynamically lubricating geometry for the generally circular dynamic sealing lip of rotary seals that are employed to partition a lubricant from an environment. The dynamic sealing lip is provided for establishing compressed sealing engagement with a relatively rotatable surface, and for wedging a film of lubricating fluid into the interface between the dynamic sealing lip and the relatively rotatable surface in response to relative rotation that may occur in the clockwise or the counter-clockwise direction. A wave form incorporating an elongated dimple provides the gradual convergence, efficient impingement angle, and gradual interfacial contact pressure rise that are conducive to efficient hydrodynamic wedging. Skewed elevated contact pressure zones produced by compression edge effects provide for controlled lubricant movement within the dynamic sealing interface between the seal and the relatively rotatable surface, producing enhanced lubrication and low running torque.

Systems and methods are provided for restarting an engine that can be selectively deactivated during idle-stop conditions. In one embodiment, the engine is restarted with torque reduction over an interval of the restart, for example, by upshifting the transmission. In response to a vehicle launch request, the torque reduction is decreased, for example, by downshifting the transmission, to expedite return of driveline torque.

A tablet electronic device is disclosed. The tablet electronic device includes a first side, a second side and an electronic component. The first side has a first thickness. The second side is opposite to the first side and has a second thickness. The second thickness is larger than the first thickness. The second side has a recess. The electronic component is accommodated in the recess such that a gravity center of the tablet electronic device is adjusted towards the second side. The tablet electronic device has a holding portion and the center of gravity of the tablet electronic device is arranged in a suitable position, thus the tablet electronic device disclosed herein can be comfortably operated while being held in a user's hand. Furthermore, the tablet electronic device can be set in various ways for comfortable usage.

This invention concerns an aircraft propulsion system in which an engine has an engine core comprising a compressor, a combustor and a turbine driven by a flow of combustion products of the combustor. At least one propulsive fan generates a mass flow of air to propel the aircraft. An electrical energy store is provided on board the aircraft. At least one electric motor is arranged to drive the propulsive fan and the engine core compressor. A controller controls the at least one electric motor to mitigate the creation of a contrail caused by the engine combustion products by altering the ratio of the mass flow of air by the propulsive fan to the flow of combustion products of the combustor. The at least one electric motor is controlled so as to selectively drive both the propulsive fan and engine core compressor.

A rock bolter has a drill and a bolt driver, both mounted to a turret that rotates relative to a base to align either the drill or the bolt driver with a work axis. A stinger/centralizer has two head elements, each advanced along a curvilinear path. When advanced, the head elements mate to provide a centralizer passage on the work axis. A supplementary stinger affixed to the base extends to engage the rock surface and provide stability as the head elements are retracted. The drill and the bolt driver are mounted on carriages activated by a common mechanism. A drill carriage disabling surface is affixed to the base to block the drill carriage when the drill is off the work axis, and a bolt driver carriage disabling surface is affixed to the base to block the bolt driver carriage when the bolt driver is off the work axis.

A read head system has a housing and a read positioned in the housing with a slot for swiping a magnetic stripe of a financial transaction card with the slot utilized to enable a financial transaction between a buyer and seller. The read head reads data on the magnetic stripe and produces a signal indicative of data stored on the magnetic stripe. The read head includes an output jack configured to be coupled to at least one of a audio jack or microphone port of a mobile device. The read head provides the signal to the mobile device. The slot is oriented and sized to reduce torque applied on the read head as the financial transaction card is swiped through slot in order to maintain accuracy and reliability of the data read by the read head. Decoding of the signal is performed in the mobile device. The decoding includes determining pulses in the signal and converting at least some of the pulses to characters.

A system for distributing propulsion to front and rear axles of a vehicle includes: a front axle motor coupled to the front axle and a rear axle motor coupled to the rear axle. An electronic control unit (ECU) electronically coupled to the motors commands the rear axle motor to increase torque supplied to the rear axle during understeer and commands the front axle motor to increase torque supplied to the front axle during oversteer. A method to distribute propulsion to front and rear axles of a vehicle includes estimating actual yaw rate, estimating desired yaw rate, providing electrical energy to the front axle motor during oversteer, and providing electrical energy to the rear axle motor during understeer. Additionally, electrical energy may be extracted from the rear axle motor during oversteer and electrical energy may be extracted from the front axle motor during understeer.

The servo actuated robot manipulator for surgical operation has fingers in the most front end as well as finger circularly moving joint mechanism, arc guide rotating joint mechanism, inclined guide straight motion joint mechanism, the first small arm rotating joint mechanism, the second small arm rotating joint mechanism, large arm rotating joint mechanism, vertical position regulating mechanism and sync toothed belt wheel mechanism. The present invention is used mainly in micro wound surgical operation, eye operation, orthopaedics operation, etc., especially in blood vessel stitching and other microscopic surgical operations.

When it is determined that accelerator operation and brake operation are performed at the same time based on the output values of an accelerator sensor and a stop lamp switch, a torque of an engine is reduced based on a brake pedal force which is computed based on a pressure in a negative pressure chamber of a master bag and a brake oil pressure.

The invention relates to a power driven system of the aircraft, which is characterized in that the power driven system comprises a power supply, a motor and a bearing support. The motor is vertically arranged in the bearing support by a bearing. Both the stator and the rotor of the motor are extending upwards and are respectively provided with propellers. The upper ends of the stator and the rotor where the propellers are arranged are coaxially sleeved, and the lower end of the rotor is fixed with a rotary disc after stretching out of the bearing support, an electromagnet with the magnetic pole part near the rotary disc is fixed-arranged outside the bearing support. When the motor is electrified, both the rotor and the stator drive the propellers to rotate to acquire power at the same time, and the power is transmitted to the frame by the bearing support to drive the aircraft to rise or advance. Meanwhile the electromagnetic moment between the electromagnet and the rotary disc is used to counteract the friction torque, and control the size of the electromagnetic moment to achieve the turning of the aircraft. The power driven system has the advantages of solving the problem of anti-torque of the propeller, satisfying the design requirements of miniature, simplification and lightness of the aircraft, and being beneficial to the popularization and manufacturing of the aircraft.

In a powertrain that includes wheels supporting a vehicle, an engine, a first machine able to operate alternately as an electric motor and electric generator, a second machine electric able to operate as an electric motor, and an electric storage battery having a variable state of charge, a method for holding the vehicle stationary on an incline including determining a magnitude of torque at the wheels required to hold the vehicle on the incline, determining whether the state of charge is low or high relative to a reference state of charge, determining whether a temperature of the first machine is low or high relative to a first reference temperature, and whether a temperature of the second machine is low or high relative to a second reference temperature, using the engine and the machines in various combinations to produce the required torque at the wheels.