DE718784C - Liquid shock absorbers, especially for motor vehicles - Google Patents

Description

Liquid shock absorbers, particularly for motor vehicles. The invention refers to a liquid shock absorber, especially for motor vehicles, in which a control thumb mounted in the shock absorber housing has one or two pistons with the interposition of a ball mounted in each piston and moves in the case of shock absorber oil, fed through a channel to the bearings for the purpose of lubrication will.

It is a liquid shock absorber with a bearing in the shock absorber housing Known control thumb, which acts on the shock absorber piston via a ball. the Bearing points are provided in the control thumb shaft and in the control thumb Lubricated channels, whereby the oil is fed to the bearings under the action of a pump. Tilt as a result of the arrangement of the oil channels in the control thumb shaft and in the control thumb they easily become clogged because they are not designed with a sufficiently large cross-section in order not to unnecessarily weaken the highly stressed parts.

The invention avoids these disadvantages in that one piston each the C51 via a valve through a channel in the housing to the lubrication grooves the bearing point of the control shaft presses and the flowing off from this bearing point Oil sucked in again through the lubrication grooves of the ball bearing or thrust block will. This keeps the oil constantly circulating and the entire oil content is used for the purpose of lubrication without clogging or weakening highly stressed Components enters; because as a result of the arrangement of the channels in the housing they can with any size can be chosen.

In the drawing, Fig. I shows a vertical section and Fig. A shows a Side view of the split shock absorber.

The shock absorber according to the invention can be of one or two pistons manufactured and used.

The shock absorber consists of the housing halvesa and b and one or more built-in pistons e. In the single-piston version, there is a valve on the side. and with the double piston version, two valves d are installed on the side. To the left and right of the control thumb, which is mounted on a control thumb shaft f, there is a flattened Kugelg each. In the housing a, b channels i are provided in order to press the oil through a piston each via a valve d to the lubrication grooves of the bearings k of the control thumbwheel f. The t51 flowing off from this bearing point is sucked in via the lubrication grooves L of the ball bearing points. When the car springs are loaded, the piston c is shifted from one side to the other. The oil passes through the low-pressure valve on the other side into channel i via bearings h and the. Lubricating grooves L then via the left piston valve lt into the left high pressure chamber o. When the carriage springs are relieved, the piston is moved from the low pressure side to the high pressure side. In this case, the oil is fed through valve d, the duct bore! and the bearings k are also displaced into the reserve chamber o. It then passes through the piston valve lz into the low-pressure chamber.

Claims (1)

PATENT CLAIM: Liquid shock absorber, especially for motor vehicles, in which a control thumb mounted in the shock absorber housing moves one or two pistons with the interposition of a ball mounted in each piston and in the case of the shock absorber oil is fed through a channel to the bearings for the purpose of lubrication, characterized in that One piston (c) each presses the oil via a valve (d) through a crazy housing (a, b) arranged channel (i). to the lubrication grooves of the bearing point (h) of the control thumb shaft (f) and the oil flowing off from this bearing point sucks in oil again through the lubrication grooves of the bearing point of the ball (g).