THE RUSSIAN FEDERATION

THE FEDERAL SERVICE
FOR INTELLECTUAL PROPERTY,
PATENTS AND TRADEMARKS

INVENTION DESCRIPTION FOR PATENT

METHOD FOR CONVERSION OF PISTONS RECIPROCAL MOTION IN PISTON ROTOR CYLINDERS INTO ROTATIONAL MOTION OF ROTOR AND TRANSMISSION MECHANISM

The invention relates to machine manufacturing and can be used in hydraulic and air engines, pumps, compressors and other units. Method for the conversion of pistons reciprocal motion in piston rotor cylinders into the rotational motion of a shaft in a transmission mechanism is implemented by the rotation of the piston rotor fixed at the shaft. Piston rods of the piston rotor bring rack reducers in motion. Rack reducers interact with the sun wheel of the planetary gear. A transmission mechanism for the method implementation comprises a piston rotor, rack and planetary gears. The rotor shaft (1) is movably fixed at immovable supports (2) and bearings (3). The rotor is fitted with rigidly fixed “x” amount of cylinders (4) and the corresponding number of rack reducers (8). A displaceable piston (6) with a rod (7) being simultaneously a reducer rack is installed inside each cylinder. A planetary pinion (10) is located on the output shaft (9) of each rack reducer. The planetary pinions are set on the rigidly fixed sun wheel (11). The invention allows obtaining higher efficiency output of 2 current values of the formula, located on Pic. 2

The invention relates to machine manufacturing. The transmission mechanism used is a rotor piston planetary mechanism and designed for transformation of translational motion of the piston in the piston rotor cylinder into rotational motion of the piston rotor itself. This mechanism can be used in hydraulic and air engines, pumps, compressors and other units. In specific cases it can replace crank gear.

The task of the proposed solution is development of a rotor piston planetary transmission mechanism designed for transformation of translational motion of the piston in the piston rotor cylinder into rotational motion of the piston rotor itself by means of rack and planetary gears.

Technical result is the possibility to build equipment for transformation of pressure, for example, fluid or gas pressure, into mechanical energy of rotational motion. At the same time, a significant increase in efficiency is expected in comparison with existing mechanisms, for example, hydraulic turbines (by factor of 2-2.5 times), as the proposed transmission mechanism has no significant structural power losses.

The proposed mechanism is shown in Fig. 1 (side view) and Fig. 2 (end view), where numbers are the following: 1 – rotor shaft, 2 – immovable supports, 3 – bearings, 4 – cylinder, 5 – fastener, 6 – piston, 7 – piston rod, 8 – rack reducer, 9 – output shaft, 10 – planetary gear pinion, 11 – sun wheel.

The rack gear includes a rod (7), which simultaneously serves as a rack, and a reducer (8). The planetary gear includes a carrier that is also a rotor, a pinion (10), and a sun wheel (11).

The design of the transmission mechanism is a combination of the piston rod, rack and planetary gears. The rotor shaft (1) is movably fixed at immovable supports (2) and bearings (3). Several ("x" amount) cylinders (4) and the same (corresponding, return) number of rack reducers (8) are immovably fixed at the rotor shaft with bracings (5). The rack reducers may have various designs. Inside each cylinder there is a movable piston (6) with a piston rod (7) that is also a reducer rack. A planetary gear pinion (10) is located at the output shaft (9) of the piston. Pinions are located at the immovably fixed sun wheel (11).

The proposed mechanism operates in the following way.

When the piston (6) moves longitudinally inside the cylinder (4), the piston rod (7) passes through the reducer (8). The reducer sets the planetary gear pinion (10) in rotational motion, at the same time, the piston rotor being the planetary gear carrier is set in rotational motion.

Therefore, the operating principle of the rotor piston planetary transmission mechanism is transformation of pistons reciprocal motion in cylinders of the piston rotor into rotational motion of the piston rotor itself by using rack and planetary gears for motion transformation.

The advantages of the proposed transmission mechanism are:

• 2-2.5 times higher efficiency in comparison with similar purpose mechanisms;
• usage of the transmission mechanism in hydraulic energy equipment, compressors, pumps and similar equipment.

Patent claim

1. Method for conversion of pistons reciprocal motion in “x” number of piston rotor cylinders into rotational motion of a shaft in a transmission mechanism, which is implemented by the rotation of the piston rotor fixed at the shaft, and obtained by means of interaction of “x” number of rack reducers that are set in motion by piston rods with the sun wheel of the single planetary gear.
2. The transmission mechanism implementing the method from previous paragraph is distinctive in that it contains a piston rotor, rack and planetary gears; the rotor shaft is movably fixed at immovable supports and bearings; “x” amount of cylinders and the corresponding number of rack reducers are immovably fixed at the rotor shaft with fasteners; a displaceable piston with a rod being simultaneously a reducer rack is installed inside each cylinder; a planetary gear pinion is located at the output shaft of the piston, pinions are located at the immovably fixed sun wheel.