RU2330161C1 - Plunger satellite gas-hydraulic engine - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: plunger satellite gas-hydraulic engine incorporates movable rigid gear wheel (13) in mesh with another wheel, wave generator (2) with cylinders (3) spaced equidistant along the circumference and radial channels (6) communicating every cylinder with central bore (7). The said bore accommodates distributor (8) made as a shaft with a working medium feed and drain spaces. The said gear wheel represents a ring-separator (15) furnished with the slots accommodating radially-moving prismatic plungers (14) with holes. Ring-separator (15) radial holes accommodates pistons (14), pistons (4) driven by elastic elements, the aforesaid both pistons being furnished with holes receiving identical-section rods.

EFFECT: higher reliability of the plunger satellite gas-hydraulic engine allowed for by ruling out flexible elements from the engine design.

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Description

The invention relates to the field of oil and gas engineering and can be used as a power drive for automatic control systems of shutoff and control valves of gas pipelines of high and low pressure.

The efficiency of oil and gas transportation through pipelines is determined by the operational characteristics of the applied technical means. Power drives of shutoff and control valves, in particular plunger gas-hydraulic engines containing metal cables as a returning device, have low reliability.

Known wave pneumohydroengine (A.S. SU No. 1198285 “Wave pneumohydrodrive”, published in Bulletin No. 46, 1985), made in the form of a housing with a rigid and flexible gear wheel placed therein, a wave-forming machine with cylinders and radial evenly spaced around the circumference channels connecting each cylinder with a central hole in which a rotating distributor is installed in the form of a roller with cavities of supply and discharge of the working fluid.

In this engine, a flexible wheel performs the function of removing teeth from the engagement zone. Therefore, the main disadvantage of such a drive is its low reliability due to the low durability of the flexible wheels.

Closest to the proposed technical essence is a plunger gas-hydraulic engine, described in patent RU No. 2278979 "Plunger gas-hydraulic engine", publ. bull. Number 18. The engine contains a movable rigid gear wheel and a wheel interacting with it, a wave generator with cylinders and radial channels evenly spaced around the circumference connecting each cylinder with a central hole, in which the distributor is mounted in the form of a shaft with supply and drain cavities of the working fluid. The wheel is made in the form of a separator ring, in the grooves of which prismatic plungers are placed with the possibility of radial movement, and an inextensible flexible element with the same cross section is installed in the symmetrical grooves of the plungers.

The disadvantage of this drive is also the lack of reliability due to the use of inextensible flexible elements in its design - metal cables.

The technical problem to be solved by the claimed invention is directed is to increase the reliability of the plunger planetary gas engine by eliminating flexible elements from its design.

The problem is solved in that in a plunger planetary gas engine containing a movable rigid gear and a wheel interacting with it, a wave generator with cylinders and radial channels evenly spaced around the circumference connecting each cylinder with a central hole in which the distributor is mounted in the form of a rotation shaft with cavities of supply and discharge of the working fluid. The wheel is made in the form of a separator ring, in the grooves of which prismatic plungers are arranged with radial movement with holes made in them, and in the radial holes of the separator ring are placed with the possibility of movement under the action of elastic elements pistons with holes made in them, and in the piston holes and plungers installed rod with the same cross-section.

Figure 1 shows a cross section of a plunger planetary gas engine, in the working position;

Figure 2 shows the axial section of the plunger planetary gas engine;

Figure 3 shows the axial section of the separator ring.

The plunger planetary gas-hydraulic engine contains a gear coupling 1, rigidly mounted on the wave generator 2 with cylinders 3 evenly spaced around the circumference, with pistons 4 installed in their grooves, seals 5 inserted into the grooves, and radial channels 6 connecting each cylinder to the central hole 7, in which the distributor 8 is mounted for rotation in the form of a shaft with drainage cavities 9 and feeds made in the form of grooves 10, wherein an annular groove 11 and stems channels 12, informing the annular groove 11 with radial channels 6 at the time of working fluid therein.

The movable rigid gear wheel 13 is connected to the plungers 14 of the gear coupling 1. The plungers 14 are evenly spaced around the circumference and are fixed from angular movements relative to each other by a separator ring 15, rigidly fixed to the gear coupling 1, and from axial movements - by the housing covers, which play the role of gear couplings 1. Rods 16 are installed in the holes of the plungers 14, which are also installed in the holes of the pistons 20, interacting with elastic, adjustable screws 21, elements 22, the working fluid is fed through the feed fitting 17, the collector 18 and the axial channels 12.

The plunger planetary gas-hydraulic engine operates as follows.

When supplying a working fluid from a high-pressure line (not shown) through a fitting 17, a manifold 18, axial channels 12, an annular groove 11, grooves 10 of the distributor 8, radial channels 6 into the cylinders 3, which causes the pistons 4 to reciprocate and deform elastic elements 22, by force transmitted from the plungers 14 through the pistons 20 and further through the rods 16. Thus, the plungers 14 come into contact with the movable hard gear 13 and the gear coupling 1 and create two diametrically opposite engagement zones, aspolozhennye in one plane, and fed to the distributor 8 of the electromechanical converter or controllable turbine (not shown) of successive pulses rigid movable gear 13 is rotated by an angle proportional to the number of command pulses. Plungers 14, which are in the discharge zone, act on the pistons 4 by the force of elastic elements 22, which is transmitted to the pistons 20, and then on the rods 16, the pistons 4 release the cylinders 3 from the working medium through radial channels 6, drain cavities 9 and the central hole 19 of the distributor 8 to a low pressure line (not shown). The regulation of the force created by the elastic elements 22 is carried out using screws 21.

At the moment, testing a plunger planetary gas engine is in the experimental stage. The results of preliminary tests show that the decrease in the efficiency of the engine is negligible and is offset by an increase in the reliability of its operation.

Claims (1)

A plunger planetary gas engine containing a movable rigid gear and a wheel interacting with it, a wave generator with cylinders and radial channels uniformly spaced around the circumference connecting each cylinder with a central hole in which the distributor is mounted in the form of a shaft with supply and discharge cavities body, characterized in that the wheel is made in the form of a ring-separator, in the grooves of which are located with the possibility of radial movement of the prismatic plungers with holes made in them, and in the radial holes of the separator ring, pistons with holes made in them are arranged to move under the action of elastic elements, and a rod with the same cross section is installed in the holes of the pistons and plungers.

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