Hydraulic Mounts, Engines and Motor Vehicles

Abstract

The invention relates to a hydraulic mount (2), the hydraulic mount has an electromagnetically acting linear actuator (12), the linear actuator has a stator (14) and an armature (16), wherein at least a first armature end is included The first actuator side (26) of the side (20) constitutes a part of the cavity wall (28) for delimiting the working cavity (6), so that the first armature end side (20) and the Liquids are in direct contact. The hydraulic mount (2) has an overflow channel (30) filled with liquid, the end of the overflow channel (30) being arranged opposite to the first actuator side (26) and comprising at least a second electrical The second actuator side (34) of the pivot end side (22) is defined such that the second armature end side (22) is in direct contact with the liquid in the overflow channel (30); and the overflow channel (30) is subordinate to The ends extend to the compensation chamber (8) for fluid exchange.

Description

technical field [0001] The invention relates to a hydraulic mount, an engine with a hydraulic mount, and a motor vehicle with such an engine. Background technique [0002] For isolating vibrations, different types and implementations of mounts are known. Among these are so-called hydromounts, which are also known as hydrodynamic mounts. These hydromounts are used to elastically support components, especially motor vehicle engines. The transmission of engine vibrations to the vehicle frame is to be prevented by means of such a hydraulic mount, which is arranged, for example, between the engine and the chassis of the motor vehicle. Attention must be paid here to the known conflict in this vibration isolation, which consists in the fact that, on the one hand, the mounting should be as rigid as possible in order to be able to withstand high loads or mounting forces, and on the other hand it should have a soft characteristics in order to isolate the resulting vibrations as eff...

AI Technical Summary

Problems solved by technology

[0008] The known hydromounts have the disadvantage that additional vertical construction space is required for arranging the actuator and its connections

[0009] It is also disadvantageous that when the seal between the actuator and the control diaphragm is underdimensioned or aged or fatigued, a leak and thus a deterioration of the suspension characteristics can result

[0010] Also disadvantageous is the high additional mass of the separate actuator pushrod and piston

In addition to higher costs and expensive assembly, the higher weight also has a strong influence on the resonance frequency of the actuator coupled to the mount

In this case, the correspondingly low natural frequency directly leads to a deterioration of the high-frequency suspension behavior

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