SU1456631A1 - Arrangement for starting an i.c. engine - Google Patents

Abstract

Invention m. Used in devices powered by muscular strength. The purpose of the invention is to simplify the design and increase the reliability of the device due to the use of a plate-shaped clamp with peripheral axial projections, size

Description

The invention relates to mechanical engineering, in particular, to an engine-building, and can be used in devices for starting an internal combustion engine, driven by muscular force.

The aim of the invention is to simplify the design and increase reliable

ti.

FIG. 1 shows the device, a general view; in fig. 2 - section aa in fig. I.

A device for starting an internal combustion engine comprises a housing which is integral with the trunnion.

2, on which a pulley 3 with a cable 4 and a return coil spring 5 are rotatably mounted,

one end of which is fixed to the pulley

3, and the other on the housing 1, a clamp 6 made of a plate-shaped and provided with at least one peripheral axis of the protrusion 7, and a brake spring 8 interacting with the presser 6. On the pulley 3 there is a hinge. But the dogs 9, made with the groove 10, in which the spacing of the nest is located the protrusion 7 of the clamp 6, interacting with the end surfaces 11 and 12 of the groove 10 of the dog 9. The flywheel 13 having the projections 14 is fixed to the engine crankshaft (not shown), forming windows for accommodating dogs 9,

The device for starting the internal combustion engine operates as follows.

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five

about

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When starting the internal combustion engine, the cable 4 is unwound, the drive pulley 3, mounted on trunnion 2, in the direction indicated by the arrow. Together with the pulley 3, the dogs 9 attached thereto move, with the clamp 6 associated with the brake spring 8 and, therefore, the projection 7 remain stationary. The end face 11 of the groove 10 of the pawl 9 moves in the direction of rotation of the pulley 3, coming out of contact with the protrusion 7, due to the existing gap between the end faces 1 and 2 of the surfaces of the Pi 12 and the protrusion 7. the gap comes into contact with the protrusion 7 and the end surface 12 , to which the force of the brake spring 8 is transmitted through the clamp 6, creating a moment relative to the axis of its fastening on the pulley 3. Under the action of the arising moment, the pawl 9 is turned and engages with the projections 14 of the flywheel 13, which causes the crankshaft and the axle to rotate Enables its launch. The braking torque generated by the brake spring 8 is limited, and after the dogs 9 enter into engagement with the flywheel 13, the clamp 6 and the brake spring 8 rotate together with the pulley 3.

After starting the engine under the action of the return coil spring 5, the pulley 3 returns to its original position by winding the cable 4. The protrusion 7 comes into contact with the end face 3I

11 of the groove 10 of the dog 9, returning it to its original position and preventing it from spontaneously entering into engagement with the flywheel 13.

Claims (1)

Invention Formula 1. A device for starting the engine of internal combustion, comprising a housing with a trunnion on which a pulley with a starting cable and a recoil coil spring are placed, a pressure pad with a radial groove in which a limiting barb of the brake spring is hinged, at least one dog, veaimo 56631- acting with a clamp, and a flywheel mounted on the engine crankshaft, on the rim of which there are windows for accommodating dogs, about which, in order to increase reliability, the clamp is plate-shaped and provided with at least one peripheral axial protrusion , and the dog is made with a groove in which a clamping protrusion interacting with the end surfaces of the dog's groove is placed with a gap. I 152. The device according to claim 1, in accordance with the fact that the body is made in one piece with the trunnion. if 6 5