279results about "Propulsion parts" patented technology

A chassis clings to a ship hull or other ferrous surface by a magnet that moves toward or away from the surface to adjust the magnet air gap and thus the attractive force. The magnet(s) can be the only clinging force or used with other sources such as a suction chamber or fluid jet drive. An internal magnet on a crank mechanism can pivot around a wheel rotation axis inside a wheel body having a non-ferrous traction surface or tire. The magnet gap is least at an angle perpendicular to the surface on which the wheel rests, and larger at an angle oblique to that, for varying the attractive force to two or more levels. The vehicle can be an autonomous hull maintenance device with sensors, controllers and actuators to sense, measure and clean away fouling.

A battery comprising powdered active materials and capable of storing a large power, and equipment or device having the battery as parts of its structure, wherein an anode cell (2) of two vessels connected via an ion-passing separator (1) is filled with an anode powdered active material and an electrolytic solution (4), a cathode cell (3) is filled with a cathode powdered active material and an electrolytic solution (5) and conductive current collectors (6, 7) in contact with the powdered active materials are provided in the two vessels.

A solid oxide regenerative fuel cell system is used to supply power in a fuel cell mode and to generate metabolic oxygen and a hydrocarbon fuel reserve in an electrolysis mode. The system may also be used as a secondary power source or for energy peak shaving applications.

A robot including a frame with wheels moves over a highly magnetically permeable support surface and at least one permanent magnet able to interact magnetically with, and couple the robot to, the surface. The permanent magnet is positioned so that one pole grazes the surface and is free to oscillate so that the pole always faces the surface and is a minimum distance from it.

A selectively powered ambulatory stretcher chair has a bifurcated articulating base of free-wheeling casters at each of the corners thereof, with motor driven wheels on a transaxle interposed therebetween. Articulation of the bifurcated base causes deployment and retraction of the drive wheels to allow use of the stretcher chair in both a manual and power-driven mode, while ensuring stability in both. A u-shaped positionable bar is pivotally connected to a back of the stretcher chair and maintains a control box within a tight range of positions as the chair of the stretcher chair assembly translates between upright and horizontal positions. The back of the stretcher chair is of a radiolucent material, accommodating medical procedures in the stretcher chair in a broad range of positions.

A drive control apparatus for a forklift. Based on the load state, it is determined whether to limit a maximum vehicle speed and an acceleration/deceleration during traveling of the forklift. Limitation contents regarding the maximum vehicle speed and the acceleration/deceleration is determined based on a determination result of whether to put the limitations. A speed of the engine is adjusted based on the determined limitation contents, thereby controlling driving of the forklift. When the determined limitation contents are changed, an acceleration/deceleration limitation value is selected from a plurality of acceleration/deceleration limitation values according to the pattern of the change of the limitation contents, and drive control related to the acceleration/deceleration is executed to limit the acceleration/deceleration of the forklift by using the selected acceleration/deceleration limitation value.

A permanent magnet motor operated by the magnetic interaction between two or more permanent magnets, and a control system therefor, is provided. The permanent magnet motor may be a piston motor having a magnetic piston assembly mounted on a crank shaft, and a rotatable cam shaft having a cam magnet corresponding to the piston assembly. When the cam shaft rotates about an axis, the poles of the cam magnet alternatingly face the adjacent magnetic pole of the corresponding piston magnet. The magnetic field interactions between the piston magnet and the cam magnet cause the piston to reciprocate within the cylinder. The permanent magnet motor may also be a rotary motor comprising a rotor having a plurality of rotor magnets, and a stator having a stator magnet. A stator motor drives the stator causing the rotor to rotate in response to alternating interactions between magnetic fields of the stator magnet and rotor magnets. A vehicle comprising a permanent magnet motor is also disclosed.

A diagnostic system for a vehicle driven by an internal combustion engine acquires a diagnostic driving pattern defined by a vehicle speed; stores a drive train model for calculating a torque and rotational speed of the internal combustion engine backward from a vehicle speed and an acceleration; stores map data in which a fuel consumption is associated with a torque and rotational speed of the internal combustion engine; updates the map data on the basis of a result of actual control over the internal combustion engine; uses the drive train model to calculate changes in torque and rotational speed of the internal combustion engine when the vehicle is caused to drive in accordance with the driving pattern; and uses the calculated changes in torque and rotational speed and the map data to calculate a fuel efficiency when the vehicle is caused to drive in accordance with the driving pattern.

When a determination result of a limitation determining section during a driving of a forklift is positive, a control section limits a vehicle speed and adjusts an engine speed. If a limitation canceling condition is met while the vehicle speed is limited, a control section cancels a vehicle speed limitation state, and executes a loading priority control in which an actuation of a loading device is prioritized. Thus, when a loading device is actuated during driving with a speed limit, the stability of the forklift is ensured while improving the workability of the loading operation.

PCT No. PCT/DE97/00921 Sec. 371 Date Jan. 8, 1998 Sec. 102(e) Date Jan. 8, 1998 PCT Filed May 7, 1997 PCT Pub. No. WO97/42067 PCT Pub. Date Nov. 13, 1997The invention relates to a vehicle hydraulic brake system having a traction control unit and a dynamic driving control unit. To enable building up pressure quickly with a return feed pump, even when the master cylinder is not actuated, a precharge pump, which is mounted on the storage container of the master cylinder and can be made to communicate with the master cylinder through a valve that is mounted in the storage container following the master cylinder. When the master cylinder is not actuated, pressure can be built up in the master cylinder and thus in the vehicle brake system using the precharge pump.

A power unit for a vehicle, such as an automobile, includes an internal combustion engine 1 as a prime mover for the vehicle, a generator 3, and a Stirling engine 4 for driving the generator 3. The Stirling engine 4 uses the exhaust gas discharged by the internal combustion engine 1 as a high-temperature heat source. Power generated by the generator 3 is supplied to an electric motor 2 for driving auxiliary machines 7, 8 and 9, and to a battery 5 for supplying power to the electric motor 2. The engine speed of the Stirling engine 4 is controlled through the control of the load on the generator 3 by a field regulator 15. An optimum engine speed of the Stirling engine 4 is determined such that the brake horsepower of the Stirling engine 4 increases to a maximum or substantially maximum brake horsepower. The fuel consumption of the internal combustion engine 1 as the prime mover that produces waste heat as a high-temperature heat source for the Stirling engine 4 is reduced, and the auxiliary machines are driven so as to fully exercise their functions even in a state where the brake horsepower of the Stirling engine 4 is low.

The invention discloses a dynamical system, in particular relates to an air energy dynamical system which adopts the air as the energy. The air energy dynamical system includes a high-pressure air holder which forms closed cycle through pipeline connection, an air engine, a low-pressure air holder and a secondary air booster, wherein, the high-pressure air holder is connected with an air inlet of the air engine; the low-pressure air holder is connected with an air exhaust of the air engine; an output shaft of the air engine outputs mechanical energy; and the energy of the secondary air booster is provided by a high-energy accumulator battery. The secondary air booster is an air compressor which adopts a direct current motor as the power. The invention has the advantage of taking air as energy without environmental pollution and having simple structure, high safety performance and closed cycle.

Stirling cycle engines with hot and cold gerotor sets separated by an insulation barrier. The barrier has regenerative gas passages to allow gasses to flow therethrough thus connecting displacing chambers of the hot and cold gerotor sets. Each gerotor set has a rotor within a stator and displacing chambers created in an offset space therebetween. The stators may rotate about the rotors, or vice-versa. Either the rotor of the cold gerotor set has an axis of rotation offset with respect to the rotor of the hot gerotor set or the stator of the cold gerotor set has an axis of rotation offset with respect to the stator of the hot gerotor set, and the non-offset rotors or stators rotate about a common axis and are rotationally connected and create an angular phase offset between connected hot and cold chambers. The gerotor apparatuses may be utilized for a Stirling cycle engine for generating electricity, for example.

The invention relates to a self-supply pneumatic vehicle, in particular to a self-supply pneumatic vehicle capable of supplying consumed compressed gas in the running process. At present, traffic tools at home and abroad are diverse, and the power is sourced from gasoline, diesel oil, liquefied petroleum gas, natural gas or storage batteries, so that the cost is high, pollution is generated to the environment, and more fundamentally, the energy is limited. An electric vehicle does not use fuel oil and is environmentally-friendly, but the core energy part of the electric vehicle is a storage battery which has low capacity and needs frequent charging, and the rejected storage battery causes environmental pollution. The self-supply pneumatic vehicle comprises an air compressor, a gas storage tank, a pneumatic motor, a worm wheel-worm mechanism, a clutch, a speed change device, a variable-energy speed change device, a generator and a storage battery. The self-supply pneumatic vehicle has a reasonable structure; and the adopted pneumatic motor does not consume gasoline, diesel oil, natural gas or other gases, so that the pneumatic vehicle has no pollution to the environment and is efficient and energy-saving. The gas storage tank is charged along running and can continually work, so that the pneumatic vehicle has long running distance.

A motorcycle includes a transmission, an ECU, an engine and a transmission operating mechanism. The engine has a crank. The transmission operating mechanism includes a shift pedal and a load sensor. The load sensor detects an operation of the shift pedal by a driver, and applies a detected value to the ECU. The ECU decreases an output of the engine when a torque (driving force) having at least a predetermined value is transmitted from the crank to the transmission when a shift operation of the driver is detected by the load sensor. Moreover, the ECU does not decrease the output when the torque transmitted from the crank to the transmission is less than the predetermined value when the shift operation of the driver is detected by the load sensor.

A power wheelchair includes a frame having first and second pivot portions on each of opposite sides of one end thereof, a pair of first wheel sets each having a first wheel mount pivoted to one of the second pivot portions of the frame and a first wheel rotatably connected to the first wheel mount, a pair of driving wheel sets each having a driving wheel mount pivoted to one of the first pivot portions of the frame and a driving wheel rotatably connected to the driving wheel mount, and a pair of suspension devices each connected between the first wheel mount of one of the first wheel sets and the driving wheel mount of one of the driving wheel sets. Thus, the power wheelchair has advantages of stable construction and safety in use.