SU1203264A1 - Pneumatic resilient element - Google Patents

Description

I

The invention from Osits to the engine. structure- and may be, for example. used in vehicle suspensions,

The aim of the invention is to increase the damping properties of the pneumatic elastic element.

Fig, 1 shows a pneumatic elastic element, obtion view; figure 2 - section aa in Fig, 1; Fig. 3 is an electronic circuit of a photoelectron control system.

The pneumatic elastic element contains a rubber-cord shell 1, an upper end attached to the base plate 2, and a lower end to the hollow piston 3 5 and a rigid partition 4 installed between the cavities of the shell and the piston 3 with peripheral holes 5 and a central hole in which the ball seal is installed 6 with an axial channel

In the cavity of the piston 3 there is a damper consisting of a housing 7, having a channel with a check valve 8 for communication with the atmosphere, and a displacer placed in it, which is a rubber-cord cylinder 9, with its upper end together with the upper base of the housing 7 tightly attached to the partition 4 and the lower ones to the flange 10, which, by means of a rigid tie I1, passing through the axial channel in the spherical seal 6, is pivotally connected to the base plate 2.

Axial 11 has axial 12 and radial channels 13 and 14 extending into it to communicate the cavity of the rubber-cord casing with the displacer cavity.

In the axial channel 12, an electro-pneumatic | valve 15 is installed with a contactless electric circuit contactor controlled by a photoelectric pair, the diodes 16 and 17 of which are mounted on two parallel, interconnected levers 18 and 19 suspended on an axis 20 to a bracket 21 fixedly attached to the base plate 2. The friction clutch lever 18 is connected to the bracket 21 and a stop 22 at the end. The lever 9 is connected to the base of the piston 3 by means of the rod 23.

The elastic element works in the following way.

In a static position when electrically electrically pneumatic circuit032642

The flap valve 15 is de-energized or open due to the mutual displacement of the diodes 16 and 17 of the photoelectron pair, the valve 15 closes the radial channel 14, separating the cavities 24 and 25 of the shell 1 and the balloon 9 between them. The air pressure in the cavity 24 and 25 is almost the same, in the cavity 26 of the housing 7 of the damper is equal or several O to less than atmospheric.,

With the start of the compression stroke, the ha 23 turns the lever 19 in the clockwise direction, the lever 18 due to frictional communication with the bracket 21 some 1 time remains unmatched. When the lever 19 is turned up to the stop in the limiter 22, the optical axes of the diodes 16 and 17 of the photoelectron pair are combined, electrically, the circuit closes 2Q and the valve 5 opens. channel 14, air from cavity 24 through channels 13,12 and 14 flows into the expanding cavity 25. Then the levers 18 and 19 rotate together, 5 while the optic axes of the diodes 16 and 17 remain aligned until the end of the compression stroke.

At the end of the compression stroke, the air pressure in the cavity 24,27 and 25 is approximately the same, and in the cavity 26 it is equal or may be slightly lower than atmospheric.

With the start of withdrawal, the motor 23 turns the lever 19 counterclockwise, the diodes 6 and 17 mutually shift, the electrical circuit opens and the valve 15 closes the channel 4, separating the cavities 24 and 25 between them. Upon reaching the limiter 22, the lever 19 carries the lever 18 behind him. During the entire stroke, the release of the damper is compressed under the action of the II strainer, the volume of cavity 25 decreases, and the air pressure in it is squeezed out, the force of resistance to release does progressively increase, which ensures an intense helium of vertical oscillations. In the following, the workflow is repeated.

five

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The use in the vehicle suspension of the proposed pneumatic elastic element will improve the damping properties under the walls and at the optimum ratio of oscillatory and structural: refusal to use parameters of hydraulic shock absorbers; without

damage to the smoothness in the zone of small deformations increase the dynamic energy intensity of the suspension, thereby reducing the likelihood of its breakdowns under extreme external disturbances and reducing the vibration load of the vehicle's carrier system; to improve the lateral and longitudinal stabilization of the vehicle body and to refuse to use the anti-roll bar in the suspension.

FIG. one

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Editor A.Vorovich

Compiled by A, Mashkik Tehred J.Kastelevich Proofreader T.Kolb

8400/39 Circulation 897 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow Zh-35, Raushsk nab., 4/5

Branch GShP Patent, Uzhgorod, st. Project 4

Claims (2)

1. PNEUMATIC ELASTIC ELEMENT, containing a rubber-cord casing, a support plate fixed to its ends and a hollow piston, a damper located therein, consisting of a housing and a displacer placed therein, which is a rubber-cord balloon having a flange from one end that is articulated by means of a tie with a base plate, characterized in that, in order to increase the damping properties, the screed is made with axial and radial channels extending into it, designed to communicate the shell and balloon cavities, elastic This element is equipped with a separating cavity of the shell and the body with a partition with central and peripheral holes located at. a central hole with a ball seal of the coupler and a disconnecting solenoid valve located in the axial channel with a non-contact circuit breaker, including two parallel levers, one ends of which are pivotally connected to the base plate, and the free end of one of the levers through a rod with a piston, and a photoelectronic pair located on leverage 2. The element according to claim 1, characterized in that, in order to increase the dynamic energy intensity, the housing and the displacer are made conical. SU „„ 1203264