A gear-double ring-hydraulic hybrid transmission device includes an input mechanism, a double ring series transmission mechanism, a hydraulic transmission mechanism, an output member, a front planetary gear mechanism, a middle planetary gear mechanism, a rear planetary gear mechanism, a clutch assembly, and a brake assembly. An output of the double ring series transmission mechanism is connected to the middle planetary gear mechanism. The clutch assembly connects the input mechanism to the double ring series transmission mechanism, the hydraulic transmission mechanism, and the front planetary gear mechanism, connects an output of the hydraulic transmission mechanism to the middle planetary gear mechanism, and connects an output of the rear planetary gear mechanism to the output member. The clutch assembly and the brake assembly provide a continuous transmission ratio between the input mechanism and the output member.

The system includes: a driver; a rotating load configured to be driven into rotation by the driver; a controller, for controllably changing a rotation speed of the load; and a variable speed transmission, arranged between the driver and the load. The variable speed transmission includes a speed summing gear arrangement with a first input shaft, a second input shaft and an output shaft. The output shaft is drivingly coupled to the rotating load. The first input shaft is drivingly coupled to the driver. A continuous variable transmission device is mechanically coupled to the driver and to the second input shaft of the speed summing gear arrangement. The continuous variable transmission device is functionally coupled to the controller.

The system includes: a driver; a rotating load configured to be driven into rotation by the driver; a controller, for controllably changing a rotation speed of the load; and a variable speed transmission, arranged between the driver and the load. The variable speed transmission includes a speed summing gear arrangement with a first input shaft, a second input shaft and an output shaft. The output shaft is drivingly coupled to the rotating load. The first input shaft is drivingly coupled to the driver. A continuous variable transmission device is mechanically coupled to the driver and to the second input shaft of the speed summing gear arrangement. The continuous variable transmission device is functionally coupled to the controller.

A continuously variable transmission for heavy duty vehicles, in which the classic hydraulic torque converter is permanently removed, comprising at least two planetary gear assemblies; a hydraulic pump, used as a gradual brake; a hydro-mechanical device for transforming the torque generated by the drive engine of the vehicle into a variable torque; a hydraulic regulator to control all torque variations in the hydro-mechanical device; a reverse drive mechanism that controls a forward or reverse movement of the vehicle; and a freewheel that allows for a transmission of a different variable gear ratios from the drive engine of the vehicle to at least one of the driving wheels or caterpillars.

A continuously variable transmission for heavy duty vehicles, in which the classic hydraulic torque converter is permanently removed, comprising at least two planetary gear assemblies; a hydraulic pump, used as a gradual brake; a hydro-mechanical device for transforming the torque generated by the drive engine of the vehicle into a variable torque; a hydraulic regulator to control all torque variations in the hydro-mechanical device; a reverse drive mechanism that controls a forward or reverse movement of the vehicle; and a freewheel that allows for a transmission of a different variable gear ratios from the drive engine of the vehicle to at least one of the driving wheels or caterpillars.

A hydraulic accelerator for providing an improved hydraulic accelerator within a hydraulic drive system is disclosed. The hydraulic accelerator is constructed from a set of four (4) top blades, a set of four (4) bottom blades, a bottom rod, a hen gear, a planetary gear small, a top rod, a planetary gear assembly, a middle bearing seat tube, and a funnel. Each of the top blades are combined with a corresponding bottom blade and the pair of blades are located at 90° angles from each other around a central axis. The central axis consists of the top rod and the bottom rod that are attached to each end of the middle bearing seat tube.

A rotation brake for stopping rotation of a spindle assembly on a horizontal directional drill. The rotation brake comprises a brake lock that is actuated by a cylinder and spring to interact with a non-rotating brake cap and a rotating pinion, thereby stopping rotation of the pinion. The brake lock is removed from the pinion by applying pressurized fluid to a cylinder such that a cylinder rod moves the brake lock out of a cavity between the brake cap and the pinion. Upon removing fluid pressure from the cylinder, a compressed spring moves the brake lock back to into the cavity, preventing rotation.

A method performs shifts in a dog clutch element of a transmission system in a hybrid vehicle. The vehicle has an input shaft being connected to a crankshaft of an internal combustion engine, an output shaft being connected indirectly to driven wheels, an electric machine which is in engagement with the input shaft, and an automatic transmission connected between the input and output shafts. The transmission has a dog clutch element for the releasable coupling of two transmission elements. During a desired shifting of the dog clutch element, the torque of the input shaft is adapted via the electric machine, and therefore a reduced load prevails in the region of the dog clutch element and the latter can be disengaged, after which the internal combustion engine is set to a desired target rotational speed, and after which the dog clutch element is engaged when the target rotational speed is reached.

A torque converter is disclosed. The torque converter includes a cover, an impeller, a turbine, a stator, and a first one-way clutch. A torque outputted from a prime mover is inputted to the cover. The impeller is unitarily rotated with the cover. The turbine is opposed to the impeller. The stator is disposed between the impeller and the turbine. The first one-way clutch is configured to make the cover rotatable relative to the turbine in a forward rotational direction. The first one-way clutch is further configured to rotate the cover unitarily with the turbine in a reverse rotational direction.

A rotation brake for stopping rotation of a spindle assembly on a horizontal directional drill. The rotation brake comprises a brake lock that is actuated by a cylinder and spring to interact with a non-rotating brake cap and a rotating pinion, thereby stopping rotation of the pinion. The brake lock is removed from the pinion by applying pressurized fluid to a cylinder such that a cylinder rod moves the brake lock out of a cavity between the brake cap and the pinion. Upon removing fluid pressure from the cylinder, a compressed spring moves the brake lock back to into the cavity, preventing rotation.