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427results about "Fluid gearings" patented technology

Novel cross-country forklift

The invention discloses a novel cross-country forklift, which relates to the technical field of hydraulic hybrid power systems of engineering machinery and comprises the following modules: a power module for providing driving power of the whole forklift; the power division module is used for realizing double-flow power division and convergence and comprises an integrated mechanical gear speed change unit and a hydraulic stepless speed change unit; the mechanical transmission module is used for transmitting the power of the mechanical direct drive branch to the drive part; the hydraulic execution module is used for realizing a dynamic characteristic cooperative control technology and matching the flow of a hydraulic system with a mechanical gear speed ratio by establishing a speed-torque-pressure three-parameter coupling model; a composite speed change module; and a control and management module. By adopting double-flow power division and convergence, power division of 70% mechanical energy direct drive and 30% hydraulic energy speed regulation is achieved, and the traditional transmission efficiency bottleneck is effectively broken through. And under the rugged terrain and the variable-load working condition, the energy utilization rate can be increased, fuel consumption is reduced, and the whole machine has higher economical efficiency and durability.
Owner:LAIZHOU DAYANG MASCH MFG CO LTD

Transmission structure

[Problem] A transmission structure that may improve a traveling feeling when a drive traveling state is interrupted in traveling and then the drive traveling state is resumed is provided. [Solution] A control device actuates a clutch actuator so that only a clutch mechanism on a most downstream side in a transmission direction in a selected shift gear is brought to a disengaged state when receiving a power cut-off signal in a state in which a traveling state change member is subjected to a forward operation or a reverse operation, and, actuates the clutch actuator so that only the clutch mechanism on the most downstream side in the transmission direction in the selected presumed shift gear is brought to a disengaged state based on a traveling state, and in addition, actuates a gear shift actuator so that a gear ratio of a continuously variable transmission mechanism that realizes a vehicle speed at that time point in the presumed shift gear is obtained while the power cut-off signal is valid, and actuates the clutch actuator so that the clutch mechanism on the most downstream side in the transmission direction in the presumed shift gear at that time point is brought to an engaged state when a cancel signal for canceling the power cut-off signal is input.
Owner:KANZAKI KOKYUKOKI MFG

Method, device and equipment for processing clamping stagnation of hydraulic control loop of hydraulic torque converter

The invention discloses a method, a device and equipment for processing clamping stagnation of a hydraulic control loop of a hydraulic torque converter. The method, the device and the equipment are used for realizing self-cleaning of clamping stagnation of the hydraulic control loop of the hydraulic torque converter. The method comprises the steps that vehicle gear information, the vehicle speed, the engine rotating speed and the turbine rotating speed are obtained; when the vehicle gear information, the vehicle speed, the engine rotating speed and the turbine rotating speed meet the target conditions, it is determined that the hydraulic torque converter hydraulic control loop is in a clamping stagnation state; and when the hydraulic control loop of the hydraulic torque converter is in a clamping stagnation state, the hydraulic torque converter is controlled to control the current of the electromagnetic valve to change in a pulse form.
Owner:SAIC MOTOR

Novel 20Kw aluminum alloy PTO gear box

The novel 20Kw aluminum alloy PTO gear box comprises a front box cover, an input shaft and a large gear, a rear box cover is installed on the outer side of the rear end of the front box cover, a vent valve is arranged in the upper end of the front box cover in a communicating mode, and an output shaft is installed in the upper end of the rear box cover; an input shaft is installed in the lower end of the front box cover in a penetrating mode, and the rear end of the input shaft is connected with a bearing. A large gear is installed on the outer side of the input shaft. The utility model belongs to the technical field of PTO gear boxes, and aims to solve the problems that in the prior art, a hydraulic system of a tractor is small in flow, a power output shaft and a gear pump are difficult to install, and a small-power gear box is insufficient in power, so that the flow of the gear pump connected with the small-power gear box is insufficient. The technical effect is that the problems that the flow of a hydraulic system of the tractor is small, the power output shaft and the gear pump are difficult to install, and the flow of the gear pump connected with a small-power gear box is insufficient due to insufficient power of the small-power gear box are effectively solved.
Owner:SHANGHAI KORESON MASCH CO LTD

A hydraulic torque converter guide wheel based on drainage hole to inhibit cavitation

PendingCN122236803AFluid gearings
This invention belongs to the field of fluid machinery technology, specifically relating to a hydraulic torque converter guide wheel that suppresses cavitation based on a guide hole. It includes an outer guide wheel ring, an inner guide wheel ring, and multiple guide wheel blades evenly distributed circumferentially between the outer and inner guide wheel rings. The outer guide wheel ring, inner guide wheel ring, and guide wheel blades are an integral structure. A main guide hole penetrating the guide wheel blade is formed at its tip along its extension direction. An end hole communicating with the main guide hole is formed on the outer or inner guide wheel ring. A flow guiding unit is provided on the guide wheel blade, and the flow guiding unit includes multiple flow guiding holes evenly distributed along the extension direction of the guide wheel blade, which communicate with the main guide hole. This invention compensates for the pressure in the cavitation region at the blade tip by introducing impeller gap flow field pressure, thereby suppressing cavitation caused by local low pressure.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY

Multi-leaf type axial volume variable suction and discharge device and variable speed drive system thereof

The present application provides a kind of multi-leaf type axial volume variable suction and exhaust device composed of driving system, mainly in the inside of a impeller type suction and exhaust device, with a multi-blade rotor as the center and a fixed wall piece, a movable leaf chamber cover and a movable wall piece, together into a multi-bias leaf chamber area leaf chamber body that can change the leaf chamber volume along the multi-blade rotor, and let the total amount of fluid suction and exhaust of the suction and exhaust device tend to be equal, and at least two of the suction and exhaust device are connected, combined into a closed loop system with active drive and passive drive, and based on driving force and load resistance will automatically reach force balance, and the relationship between the leaf chamber volume of the suction and exhaust device and the rotational speed is inversely proportional, so that the rotational speed between the active suction and exhaust device and the passive suction and exhaust device is the best driving ratio, and then achieve the optimal stepless automatic transmission drive.
Owner:CH CREATIVE CO LTD

METHOD FOR ADJUSTING THE DRIVETRAIN TORQUE OF A HYBRID VEHICLE

A method for controlling a torque output of a hybrid power machine, comprising the following: during a temporary increase in torque in response to a change in the target output torque of a powertrain (200), setting a power machine output torque and a motor output torque in response to a change in the target output torque of the powertrain (200), Adjusting the motor output torque in response to a response to a speed of a drive wheel (285) of a torque converter (206), characterized by Adjusting the power machine output torque for a power machine torque error in response to the settings of a motor torque.
Owner:FORD GLOBAL TECH LLC

Pressure plate with radially extending connecting elements

Pressure disc (86), which includes: an annular lower part (92) comprising a radially extending pressure surface (92b), a further radially extending surface (92c) on a side of the annular lower part (92) opposite the radially extending pressure surface (92b), an outer circumferential surface (92a) extending axially from the radially extending pressure surface (92b) to the further radially extending surface (92c), and an inner circumferential surface (92d) extending axially from the radially extending pressure surface (92b) to the further radially extending surface (92c); and radially extending connecting elements (90) that extend radially outwards from the annular lower part (92), wherein each of the radially extending connecting elements (90) comprises a radially extending arm (100) extending from the annular lower part (92) and a circumferentially extending clamp (102) extending circumferentially from an outer end of the radially extending arm (100), wherein each of the circumferentially extending clamps (102) comprises a circumferentially extending section (104) extending circumferentially from the outer end of the radially extending arm (100) and a radially extending section (106) extending radially inward from the circumferentially extending section (104), wherein each of the radially extending connecting elements (90) includes an inclined surface (106b) and a clamp (102) defined by a groove (96) formed in the inclined surface (106b).
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG

Motor anti-suck method, device and hydrostatic drive vehicle

The application provides a motor anti-vacuum method and device and a hydrostatic drive vehicle. The hydrostatic drive system comprises a pump and a motor and is used for transmitting power between an engine and a driving wheel. The method comprises the following steps: in response to the operation of stepping on a brake pedal, an angle change rate of the brake pedal is obtained, the angle change rate being a ratio of a rotating angle of the brake pedal to a rotating time length of the brake pedal; and in the case that the angle change rate is greater than or equal to a predetermined threshold value, the displacement of the pump is controlled to be 0, and the motor is controlled to increase the displacement at a predetermined rate until the maximum displacement of the motor is reached, thereby solving the problem of high cost of an oil supplement pipeline for preventing the motor from being in a vacuum state in the prior art.
Owner:WEICHAI POWER CO LTD

Torque converter

A torque converter, which may be found in an automotive transmission, is provided. In some examples, the torque converter includes a shell that extends about an axis of rotation, a core that extends about the axis of rotation, and a plurality of curved blades that extend contactedly from the shell to the core. At least one blade of the plurality of curved blades may include a non-ruled surface. The at least one blade of the plurality of curved blades may narrow as it extends from the shell to the core.
Owner:ALLISON TRANSMISSION INC

Hydrostatic transmission and methods for braking with it

Hydrostatic transmission for a drive system, comprising a drive shaft (4) of a primary unit (1) that can be coupled to an internal combustion engine of the drive system and a secondary unit (2) that can be coupled to an output of the drive system, wherein the two units (1, 2) are fluidically connected to each other via two working lines (10) of a closed circuit, and wherein the primary unit (1) has an adjustable swivel angle (angle_pump) and an adjustable displacement volume (Vg_pump) that can be controlled by an electrical control unit (8) when the hydrostatic transmission is braked, characterized by a controller (38;138), from which a correction value (Vg_pump_add_incr) for the swivel angle (angle_pump) or the displacement volume (Vg_pump) can be output, wherein the correction value (Vg_pump_add_incr) can be added to a swivel angle (angle_pump_brake) or displacement volume (Vg_pump-brake) pre-controlled by the control unit (8), wherein an input variable of the controller (38; 138) is a speed difference (Δn_eng) between an actual speed (n_eng_act) of the internal combustion engine or a quantity derived therefrom (n_pump_act) and a maximum speed (n_eng_max) of the internal combustion engine or a quantity derived therefrom (n_pump_max).;
Owner:ROBERT BOSCH GMBH

Oilfield pressure pumping system with slow speed and high pressure fracturing fluid output

An oilfield pressure pumping system is configured to perform a preliminary' fracturing stage or operation at a high pressure but slow speed before initiating normal fracturing. The oilfield pressure pumping system includes an auxiliary underdrive system that can drive the transmission at a slower input speed that can be provided by an idle speed of the power unit's engine to facilitate different fracturing modes, including a preliminary fracturing mode during a slow speed / high pressure preliminary fracturing stage. The auxiliary underdrive system may include a hydrostatic transmission driven by the engine and which, drives the transmission at an underdrive speed that would correspond to a sub-idle engine speed driving the transmission.
Owner:TWIN DISC INC

Lock-up clutch control device

Provided is a lock-up clutch control device that suppresses vibration caused by a clearance collision in a drive transmission system by improving hydraulic pressure control of a lock-up clutch when a driving load (road load) is large although an accelerator pedal is in a slow-down state, and the driving load (road load) is not large even if the accelerator pedal is in a slow-down state. The accelerator pedal is further depressed from a state in which the vehicle is decelerated (further depressed). In this lock-up clutch control device, when an accelerator pedal is depressed slowly and a vehicle is traveling at a reduced speed, the hydraulic pressure of a lock-up clutch is lower than the hydraulic pressure when normal lock-up clutch control is performed. As a result, it is possible to suppress vibrations caused by a clearance collision in the drive transmission system when the accelerator pedal is further depressed thereafter.
Owner:TOYOTA JIDOSHA KK

Drive system for a vehicle

The present invention relates to a drive unit (2) for a vehicle (100) comprising a drive (6) and an output (5). The drive unit (2) includes a transmission assembly (7) with a variator (10) for providing multiple driving ranges, a central shaft (36), and an output shaft (42). Furthermore, the drive unit (2) comprises a gearshift transmission (8) with a forward shift element (46) for mechanically connecting the output shaft (42) to the output (5) with a first gear ratio (48) for forward travel. It also includes a shift device (55) for selectively switching between a second gear ratio (53) for forward travel and a gear ratio (49) for reverse travel. The drive unit (2) also includes a reverse shift element (47) for mechanically connecting the output shaft (42) to the shift device (55).The drive device (2) has a double switching element forming the forward switching element (46) and the reverse switching element (47).
Owner:ZF FRIEDRICHSHAFEN AG

Launching device

To suitably attach a rotor onto an outer peripheral surface of a fluid coupling.SOLUTION: A starting device 1 includes a fluid coupling 2, an electric motor 3, and a regulation mechanism 4. A rotor 31 is disposed on the radial outside of the fluid coupling 2. The regulation mechanism 4 regulates relative rotation between the fluid coupling 2 and the rotor 31. The regulation mechanism 4 has a first key groove 41, a second key groove 42, and a key body 43. The first key groove 41 axially extends on an inner peripheral surface of the rotor 31. The second key groove 42 axially extends on an outer peripheral surface of the fluid coupling 2. The second key groove 42 is shorter than the first key groove 41. The key body 43 has a first key portion and a second key portion. The first key portion is fitted in the first key groove 41, and the second key portion is fitted in the second key groove 42.SELECTED DRAWING: Figure 1
Owner:EXEDY CORP

Driving control method, device, controller, vehicle and storage medium

This application provides a driving control method, device, controller, vehicle, and storage medium. The method includes: in response to a first gear change request, acquiring vehicle steering information and gear information included in the first gear change request; determining whether a cornering coasting downshift condition is met based on the vehicle steering information, gear information, and accelerator pedal opening; if the cornering coasting downshift condition is met, prohibiting gear change, unlocking the torque converter lock-up clutch, and activating the engine speed following function; determining whether a cornering coasting downshift exit condition is met based on at least one of a second gear change request, vehicle steering information, and vehicle speed; if the cornering coasting downshift exit condition is met, releasing the gear change prohibition, engaging the torque converter lock-up clutch, and exiting the engine speed following function, thereby reducing the downshift shock caused by coasting downshifts.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

Apparatus to convert hydrokinetic energy into electrical energy

A hydrokinetic apparatus for generating electricity is provided. The apparatus is similar to a large wheel having a central axis; one or more support rings; and multiple spokes where the proximal end is attached to the central axis. Some spokes, named conduits, are hollow spokes having a turbine located proximately to the central axis and at least one valve that may open and close as appropriate to allow the ingress and egress of water into the hollow spoke. Other spokes, named counterweight spokes, are configured to assist in rotating the wheel. Still other spokes, named support spokes, give the apparatus structural support. As the wheel rotates, a conduit containing water will rotate into the upper half of the wheel and open its valve to release the water into an opposing conduit in the lower half of the wheel that has opened its valve to receive the water. The water will pass through at least one turbine, thereby generating electricity.
Owner:HARRIS MARTIN

Speed change device

A transmission device (21) is provided with an input shaft (22), an output shaft (23), a planetary continuously variable transmission mechanism (24), a direct coupling mechanism (27), an idler element (28), a multi-speed transmission mechanism (26), and a controller (25). A controller (25) controls the rotational speed of a first transmission member (33) of the planetary continuously variable transmission mechanism (24) and the engagement and disengagement of a first clutch (27C) of the direct coupling mechanism (27). The controller (25) can switch the transmission device (21) to three transmission states, namely a first transmission state (stepless speed change), a second transmission state (internal lock) and a third transmission state (external lock).
Owner:HITACHI CONSTRUCTION MACHINERY CO LTD

Power section-changing hydraulic mechanical stepless speed change tractor

The invention provides a power section-changing hydraulic mechanical stepless speed change tractor which comprises an engine, a section-changing double clutch, a multi-section speed change transmission mechanism, a planetary mechanism, a first shaft, a second shaft, a third shaft, a fourth shaft, a fifth shaft, a sixth shaft, a variable pump, a constant displacement motor, a central transmission, a final transmission and a driving wheel. The engine is in transmission connection with the variable pump and the section-changing double clutch through the first shaft, the constant displacement motor is connected with the variable pump through a pipeline and is in transmission connection with the third shaft, the third shaft is rotationally sleeved with the fourth shaft, the sixth shaft is rotationally sleeved with the fifth shaft, and the section-changing double clutch is in transmission connection with the fifth shaft and the sixth shaft. The fifth shaft and the sixth shaft are in transmission connection with the fourth shaft through a multi-section variable transmission mechanism, the third shaft and the fourth shaft are in transmission connection with the planetary mechanism, the planetary mechanism is in transmission connection with the central transmission through the second shaft, and the central transmission is in transmission connection with the final transmission and the driving wheel.
Owner:LOVOL HEAVY IND CO LTD

Hybrid electric vehicle control device

To suppress start of an engine so that a torque amplification action of a torque converter can be appropriately obtained at the time of motor travelling.SOLUTION: At the time of BEV traveling (motor traveling), a target slip amount Nslipt with an input torque Ti equal to an output torque of a torque converter as a maximum value Timax is calculated on the basis of MG characteristics and TC characteristics, in response to input rotation speed Nia determined according to vehicle speed V, and an LU hydraulic pressure Plu is controlled so that a slip amount Nslip of an LU clutch becomes a target slip amount Nslipt. In other words, differential rotation of the torque converter is controlled so that a maximum input torque Timax can be obtained according to the vehicle speed V at that time, and accordingly a BEV travel region is widened, engine start, in other words, shift to HEV traveling is suppressed, and fuel consumption is improved.SELECTED DRAWING: Figure 2
Owner:TOYOTA JIDOSHA KK

CVT (continuously variable transmission) hydraulic torque converter with projection welding energy-gathering ring structure

The invention belongs to the field of hydraulic torque converters, and particularly relates to a CVT (continuously variable transmission) hydraulic torque converter with a projection welding energy gathering ring structure. The hydraulic torque converter comprises a cover wheel hub and a cover wheel shell. An energy gathering ring is arranged on the end face of one end of the cover hub; the end face of one end of the cover hub is further provided with two molten pool grooves. The two molten pool grooves are annular grooves and are oppositely formed in the inner ring and the outer ring of the energy gathering ring on the hub cover; the sides, close to each other, of the two molten pool grooves are connected with the inner ring and the outer ring of the energy gathering ring correspondingly. Gaps are respectively formed between the inner side edge and the outer side edge of the end surface of one end of the cover hub and the other sides of the two molten pool tanks, and the end surface of one end of the cover hub is positioned at the gaps to serve as a supporting surface. According to the invention, the energy-gathering ring is innovatively designed, the bottom supporting surface is increased, and meanwhile, the melting tank is designed at the root part, so that the deflection phenomenon in the welding process is avoided, the form and location tolerance requirements of the perpendicularity and the coaxiality after the hub is welded are met, meanwhile, the welding strength requirement is met, and the welding qualification rate is improved.
Owner:XIAN AEROSPACE PUMP CO LTD

Gearbox and agricultural machine

The gearbox comprises a box body, a connecting shaft and a first shaft are arranged in the box body, the first shaft is arranged at one end of the connecting shaft, and the axis of the first shaft coincides with the axis of the connecting shaft; a transmission shaft parallel to the connecting shaft is further arranged in the box body, and high-low gear fixing teeth are fixedly arranged on the transmission shaft. The first shaft is sequentially provided with second and third gear fixing teeth, a first shaft belt tooth and a PTO input tooth. The connecting shaft is provided with slidable high-low gear sliding teeth which can be meshed with the high-low gear fixing teeth. A bevel gear shaft is further arranged in the box body, a driving bevel gear is arranged at one end of the bevel gear shaft, a four-wheel-drive input shaft is arranged at the other end of the bevel gear shaft, the bevel gear shaft coincides with the axis of the four-wheel-drive input shaft, and four-wheel-drive input teeth are fixedly arranged on the four-wheel-drive input shaft. A four-wheel drive shaft is further arranged on one side of the four-wheel drive input shaft, and four-wheel drive sliding teeth are arranged on the four-wheel drive shaft. The gearbox with the structure is more reasonable in structural design, better in structural strength and larger in hydraulic output quantity.
Owner:CHANGSHA XINGJU AGRI MACHINERY

Hydraulic torque converter control method and apparatus

ActiveCN116221359Bavoid stallingkeep oil offGearing controlFluid gearingsStall (engine)Control theory
The application provides a hydraulic torque converter control method and device, and belongs to the field of automobile gearbox control. When current vehicle parameters meet preset conditions, especially when the current vehicle speed is within a preset vehicle speed range, the clutch in the hydraulic torque converter is controlled to switch to a sliding friction state, that is, a semi-linked state. In this state, the engine can stop fuel injection, and the engine can also be prevented from stalling due to low wheel speed dragging the engine or the engine losing connection with the wheels. In summary, the engine can continue to be fuel cut on the basis of avoiding engine stall, the fuel cut time is prolonged, and oil consumption is further reduced.
Owner:CHERY AUTOMOBILE CO LTD

electric work vehicle

To provide an electric work vehicle capable of changing a vehicle speed while maintaining the rotation speed of power take-off shafts at a target rotation speed.SOLUTION: An electric work vehicle includes: a motor control unit for controlling a motor M; power take-off shafts 17, 18 that can be connected with a work device and transmit rotary power from the motor M to the work device; and a distribution mechanism 20 for distributing the rotary power outputted from the motor M to a hydrostatic continuously variable transmission 15 and the power take-off shafts 17, 18. The hydrostatic continuously variable transmission 15 is configured to shift the speed of the rotary power inputted into the hydrostatic continuously variable transmission 15 and output the rotary power to a travel device. The motor control unit can perform maintenance control for maintaining the output rotation speed of the motor M at a rotation speed corresponding to the target rotation speed of the power take-off shafts 17, 18. The hydrostatic continuously variable transmission 15 is configured to be capable of changing a gear shift state in the hydrostatic continuously variable transmission 15 according to manual operation of a speed change operation tool in the state where the maintenance control is being performed.SELECTED DRAWING: Figure 4
Owner:KUBOTA CORP

A server liquid cooling pump, liquid cooling system and method of use thereof

This invention discloses a server liquid cooling pump, a liquid cooling system, and its usage method, relating to the field of liquid cooling pump technology. The invention includes a motor unit, a motor heat dissipation unit, a hydraulic coupling transmission unit, and a coolant pumping unit. The motor unit includes a motor housing, a housing cover, and three motor modules. The motor heat dissipation unit includes a heat-conducting capillary tube, a converging tube, and a return main pipe. The housing cover has a hydraulic coupling chamber, in which the hydraulic coupling transmission unit is installed. The coolant pumping unit includes a pumping assembly and a pumping cylinder, the pumping cylinder being installed on the front end of the housing cover. The liquid cooling system includes coolant piping and a server liquid cooling pump, which is used for server liquid cooling. This invention achieves heat transfer oil circulation and heat dissipation through different oil pressures within the chamber via the hydraulic coupling transmission unit, and ensures motor stability by switching motors. This solves the problems of existing liquid cooling pumps, such as motor malfunctions during prolonged operation and the inability to promptly cut off coolant supply lines in case of malfunctions.
Owner:JIANGSU QIYAO NEW ENERGY TECH CO LTD

Power transmission device for work vehicle and work vehicle

A power transmission device (10) for a work vehicle (100) includes a transmission (11) including an input shaft (20) rotationally driven by a prime mover (103), a continuously variable transmission (30), a planetary gear mechanism (40), and a plurality of transmission gears (50). The first planetary gear mechanism (41) includes a first ring gear (41R), a first sun gear (41S), and a first planetary gear (41P). The second planetary gear mechanism (42) includes a second ring gear (42R), a second sun gear (42S), and a second planetary gear (42P). The first planetary gear (41P) further includes a third planetary gear (43P) that meshes with the second planetary gear (42P). An outer diameter dimension (RS1) of the first sun gear (41S) is larger than an outer diameter dimension (RS2) of the second sun gear (42S), and an inner diameter dimension (RR2) of the second ring gear (42R) is larger than an inner diameter dimension (RR1) of the first ring gear (41R).
Owner:KUBOTA CORP

Speed change device for drilling machine

The speed change device for the drilling machine comprises a hydraulic motor assembly, a power input gear assembly and a power output gear assembly, the power input gear assembly comprises an input gear part and an input bearing part, and a power input internal spline is arranged in the power input gear assembly. The input bearing part is fixedly connected with a first bearing part. The power input internal spline is in key connection with a power shaft of the hydraulic motor assembly. The input gear part is engaged with the outer side gear assembly. The outer side gear assembly is connected with the power output gear assembly in a meshed mode. The power output gear assembly is used for being connected with a follow-up device. The outer side gear assembly is further connected with an inner side gear assembly in a meshed mode. The outer side gear assembly is connected with a gear adjusting assembly in a matched mode, and the gear adjusting assembly is used for adjusting connection between the outer side gear assembly and the inner side gear assembly. Operators can switch different gears only by operating the gear adjusting assembly, so that the rotating speed and the torque of the drill rod are adjusted, and the speed changing device is simple in structure and convenient to operate.
Owner:CHENGDU CHANGNIAN KEPU MECHANICAL & ELECTRICAL EQUIPMENT CO LTD

Apparatus to convert hydrokinetic energy into electrical energy

A hydrokinetic apparatus for generating electricity is similar to a large wheel having a central axis; one or more support rings; and multiple spokes where the proximal end is attached to the central axis. Some spokes, named conduits, are hollow spokes having a turbine located proximately to the central axis and at least one valve that may open and close as appropriate to allow the ingress and egress of water into the hollow spoke. Counterweight spokes are configured to assist in rotating the wheel. Support spokes give the apparatus structural support. As the wheel rotates, a conduit containing water will rotate into the upper half of the wheel and open its valve to release the water into an opposing conduit in the lower half of the wheel that has opened its valve to receive the water. The water will pass through at least one turbine, thereby generating electricity.
Owner:HARRIS MARTIN

Drive unit

To provide a drive unit that can increase drive power.SOLUTION: A drive unit 100 includes an electric motor 2 and a torque converter 3. The electric motor 2 is configured to drive a drive wheel via the torque converter 3. The electric motor 2 has a characteristic that output torque becomes large as revolution speed increases in a range from stopping to a specific revolution speed.SELECTED DRAWING: Figure 1
Owner:EXEDY CORP

A platform type sea wave power generation device

The application provides a platform type sea wave power generation device, which comprises a supporting platform, a supporting column, a conversion assembly, a floater assembly, an energy storage assembly, a transmission and a generator, wherein the floater moves up and down under the action of sea waves, and drives a chain wheel to move up and down in the moving process; the chain wheel contacts a first piston oil cylinder when moving up and down; the first piston oil cylinder converts pressure into hydraulic oil; the hydraulic oil is connected with a second piston oil cylinder through a hydraulic joint and a pipeline; the second piston oil cylinder transmits the hydraulic pressure to a force transmission assembly; the force transmission assembly can contact a one-way ratchet wheel, converts the hydraulic pressure into power, makes a rotating shaft rotate, and transmits the rotating power to the generator through the transmission; the number of the first piston oil cylinder and the second piston oil cylinder is one-to-one; intermittent power is generated, energy is stored and power is generated, the device has simple structure, low cost and high power generation efficiency.
Owner:余占福