US 2015/0354357 A1 · HYDRAULIC GEAR MOTOR, GEAR PUMP AND GEARBOX WITH CONTINUOUSLY VARIABLE PARAMETERS

Abstract

Transmission with continuously variable parameters comprises at least one pump and at least one hydraulic motor, wherein at least one pump, or a hydraulic motor is with the continuously variable parameters. It consists of an input shaft and one or more output shafts with equal or proportional continuously variable regulation of rotational speed. It may be constructed as a centralized—one piece, or de-centralized, where the pump is at a distance from the hydraulic motor and the liquid medium passes through the hydraulic pipes. Pump and the hydraulic motor may be of the same design or different and are provided with the shift mechanism composed of a holder, the shift wheel and the snap lock. Gear pump with a continuously variable flow rate comprises at least one shaft which holds the inner rotor that is inserted into the outer rotor. The rotors are mutually axially movable. The inner rotor is provided from the both sides with a sliding seal with the shift screw and sliding seal with compensatory cylinders are secured by snap locks. These parts are fitted into the central body, side seal and side seal having inlet opening and outlet opening connected by bypass regulated member. Compensating pistons of the planar compensating system are rigidly attached to the side seal. Pump with the continuously variable flow rate comprises at least one planar compensating system.

Claims20

Dependent claims

A hydraulic gear motor with continuously variable rotational speed comprising a shaft with a rotation axis X on which at least one inner rotor with outer teeth is mounted, which is insertable into at least one outer rotor with inner teeth and a rotation axis Y, whereas a number of teeth of the outer rotor with inner teeth is one more than a number of teeth of the inner rotor with outer teeth and comprising an input opening and an output opening, wherein the inner rotor with outer teeth and the outer rotor with inner teeth have at least one degree of clearance in axial direction and from sides they are provided with a first sliding sealing with an inner thread and a second sliding sealing with compensation cylinders of uneven diameters, whereas the first sliding sealing with the inner thread has a diameter corresponding to the inner diameter of gear apices of the outer rotor with inner teeth and the second sliding sealing with compensation cylinders has a diameter corresponding to the outer diameter of the gear apices of the inner rotor with outer teeth;

while it contains at least one surface compensation system for compensation of inner volume changes that will arise at relative axial movement of the rotors due to uneven diameters of the first and second sliding sealings.

A transmission with continuously regulated output parameters, comprising a minimum of one gear pump with continuously variable output flow comprising a shaft with the rotation axis X, on which is mounted at least one inner rotor with outer teeth, which is insertable into the outer rotor with inner teeth with the rotation axis Y, whereas a number of teeth of the outer rotor with inner teeth is one more than a number of teeth of the inner rotor with outer teeth and containing the input opening and the output opening, wherein the inner rotor with outer teeth and the outer rotor with inner teeth have at least one degree of clearance in the axial direction, from sides they are provided with the first sliding sealing with the inner thread and the second sliding sealing with compensation cylinders, of uneven diameters, whereas the first sliding sealing with the inner thread has a diameter corresponding to the inner diameter of the gear apices of the outer rotor with inner teeth and the second sliding sealing with compensation cylinders has a diameter corresponding to the outer diameter of gear apices of the inner rotor with outer teeth;

and whereas it contains at least one surface compensation system, for compensation of inner volume changes that emerge at relative axial movement of the rotors due to uneven diameters of the first and second sliding sealings, and by-pass regulated system or synchronising system of the rotors and at minimum one hydraulic motor;
or a minimum one hydraulic gear motor with continuously variable rotational speed comprising a shaft with a rotation axis X on which at least one inner rotor with outer teeth is mounted, which is insertable into at least one outer rotor with inner teeth and a rotation axis Y, whereas a number of teeth of the outer rotor with inner teeth is one more than a number of teeth of the inner rotor with outer teeth and comprising an input opening and an output opening, wherein the inner rotor with outer teeth and the outer rotor with inner teeth have at least one degree of clearance in axial direction and from sides they are provided with a first sliding sealing with an inner thread and a second sliding sealing with compensation cylinders of uneven diameters, whereas the first sliding sealing with the inner thread has a diameter corresponding to the inner diameter of gear apices of the outer rotor with inner teeth and the second sliding sealing with compensation cylinders has a diameter corresponding to the outer diameter of the gear apices of the inner rotor with outer teeth;
while it contains at least one surface compensation system for compensation of inner volume changes that will arise at relative axial movement of the rotors due to uneven diameters of the first and second sliding sealings and at minimum one pump;
or at minimum one gear pump with the continuously variable output flow and at minimum one hydraulic gear motor with the continuously variable rotational speed, and where an output of the pump or of the gear pump with the continuously variable flow volume is connected with an inlet of the hydraulic motor or of the hydraulic gear motor with the continuously variable rotational speed and an outlet of the hydraulic motor or of the hydraulic gear motor with the continuously variable rotational speed is connected with the inlet of the pump or of the gear pump with continuously variable flow volume.

1 more element

Dependencies are inferred from the claim text.

Hydraulic gear motor, gear pump and gearbox with continuously variable parameters

Life of this patent

Hydraulic gear motor, gear pump and gearbox with continuously variable parameters

Life of this patent

Abstract

Claims20