RU61792U1 - AXIAL PISTON INTERNAL COMBUSTION ENGINE - Google Patents

Abstract

Axial piston internal combustion engine. It can be used in construction, cross-country, agricultural machinery as part of the drive of mining machines, drilling rigs, winches, sinking and other machines. A sleeve mounted obliquely on the motor shaft, located in the beam connected to the pistons through the connecting rods, and through the reaction trunnions - with the motor housing is made swinging with an adjustable angle of inclination.

A new technical result achieved by the claimed solution consists in combining in one machine a mechanism for converting translational motion into rotational and a mechanism for continuously variable torque control.

Ultimately, the claimed solution combines an axial piston internal combustion engine with a continuously variable variator, eliminating the need for a gearbox.

Description

The utility model relates to engine building and can be used in construction, cross-country, agricultural machinery as part of the drive of mining machines, drilling rigs, winches, sinking and other machines.

The basis of the operation of drives based on internal combustion engines (ICE) is the conversion of translational motion into rotational with the possibility of torque control, a classic version of which is a gearbox.

One of the trends in the development of designs of internal combustion engines is the rejection of the gearbox, which regulates the torque stepwise and the transition to stepless regulators, the so-called variators.

Known axial piston internal combustion engine (RU 2268366, publ. 2003), which contains a sleeve mounted obliquely on the motor shaft, located in the beam, connected to the pistons through the connecting rods, and through the reaction pins - with the engine body. Known engine requires an additional mechanism for regulating torque.

The objective of this technical solution is to create a simpler and less overall design of the internal combustion engine. To solve this problem, in contrast to the prototype, a sleeve mounted obliquely on the engine shaft located in the beam connected to the pistons through the connecting rods, and through the reaction trunnions with the engine body is made swinging with an adjustable angle of inclination.

When making thermodynamic cycles of an internal combustion engine in cylinders and alternately moving pistons

rocking rocker movement occurs, which gives rotation to the swinging sleeve and the output shaft of the engine. The adjustable angle of inclination of the rocker arm and the sleeve determines the gear ratio of the gear, the torque and the revolutions of the output shaft, and thus allows to achieve a stepless regulation of the torque. The resulting reactive torque on the beam is perceived by the reaction pins and transmitted to the body.

A new technical result achieved by the claimed solution consists in combining in one machine a mechanism for converting translational motion into rotational and a mechanism for continuously variable torque control.

Example. The axial piston engine contains a housing, a shaft, cylinders with pistons located parallel to the axis of the output shaft, a swinging sleeve mounted on the output shaft with a finger, and a swinging beam with radial reaction pins moving in grooves parallel to the shaft located in the walls of the housing with pistons. In this case, the pistons are connected by connecting rods to the swinging beam, the swinging sleeve is located inside the beam and connected to it by any angular contact bearing, which allows rotation and prohibits axial, radial, angular movement. The swing sleeve has an eye connected by a connecting rod to the sleeve. The sleeve has the possibility of axial movement along the output shaft, moved by a wedge fork through a thrust bearing, thereby changing the angle of inclination of the beam.

Figure 1 shows the described axial piston engine, figure 2 is the same section along aa and bb.

The engine comprises a housing 1, cylinders 2, in each of which pistons 3 are placed, connected by connecting rods 4 to the rocker arm 5, the output shaft 6 has the ability to rotate in

bearing unit 7, in the housing cover. A swinging sleeve 9 is fixed on the shaft with a finger 8, which is connected through the bearings 10 to the swinging beam 5, and through the rod 11 with the thrust sleeve 12. The thrust sleeve through the thrust bearing 13 rests on the wedge plug 14, the threaded lead of the wedge fork is screwed into the nut 15, rotating in the housing 1. Thus, when the nut 15 is rotated, the fork 14 moves perpendicular to the shaft with an inclined plane moving the sleeve 12, the rod 11, changing the angle of inclination of the rocker arm. The oscillating rocker 5 has reactive trunnions that move longitudinally in the grooves of the housing parallel to the axis of the shaft. Axial piston adjustable engine operates as follows.

When thermodynamic cycles of the internal combustion engine are completed in the cylinders 2 and the pistons 3 are alternately moved, the rocker arm 5 oscillates, which gives rotation to the oscillating bush 9 and the output shaft 6. The angle of inclination of the rocker arm and bush is determined by the position of the thrust bush 12 and fork 14, which determines the transfer gear ratio, torque and revolutions of the output shaft, and a stepless variator mode is achieved. The resulting reactive torque on the beam is perceived by the reaction pins and transmitted to the body. The application describes an engine with two cylinders, but multi-cylinder engines can also be made.

Thus, the claimed solution combines an axial piston internal combustion engine with a continuously variable variator, eliminating the need for a gearbox.

Claims (1)

An axial piston internal combustion engine containing a sleeve mounted obliquely on the engine shaft, located in the beam connected to the pistons through the connecting rods, and through the reaction pins, with the engine housing, characterized in that the inclined sleeve is made swinging with an adjustable angle of inclination.