Passenger car engine suspension device

Abstract

The invention provides a passenger car engine suspension device. The passenger car engine suspension device comprises a pair of front suspension structures and a pair of rear suspension structures. The front suspension structures and the rear suspension structures are symmetrically arranged on a left frame longitudinal beam and a right frame longitudinal beam. Each front suspension structure comprises a front suspension support, a front suspension cushion and a front bracket, wherein the front suspension support is used for being connected with an engine, the front bracket is used for being connected with the corresponding frame longitudinal beam, and the front suspension cushion is used for being connected with the front suspension support and the front bracket. Each rear suspension structure comprises a rear suspension support, a rear suspension cushion and a rear bracket, wherein the rear suspension support is used for being connected with the engine, the rear bracket is used for being connected with the corresponding frame longitudinal beam, and the rear cushion is used for being connected with the rear suspension support and the rear bracket. The included angle between each front suspension cushion and the plane where the left frame longitudinal beam and the right frame longitudinal beam are located ranges from 40 degrees to 50 degrees, and the included angle between each rear suspension cushion and the plane where the left frame longitudinal beam and the right frame longitudinal beam are located ranges from 40 degrees to 50 degrees. According to the passenger car engine suspension device, the front suspension structures and the rear suspension structures are both of an obliquely supporting structure, vibration isolation in multiple directions can be achieved, and vibration between the engine and a chassis can be effectively isolated.

Description

[0001] technical field [0002] The invention relates to the technical field of passenger cars, in particular to a passenger car engine suspension device. Background technique [0003] The engine is the power source of the passenger car, and it is also an internal vibration source, such as torque fluctuations, idling vibrations, torque changes caused by vehicle start and speed change, etc. The passenger car engine is supported and positioned by the suspension device. The suspension device can effectively prevent the transmission of engine vibration to the chassis and play the role of isolating vibration. noise transmission etc. [0004] At present, the general-purpose engine mount adopts a simple horizontal four-point arrangement, which has a poor isolation and positioning effect on the engine, especially the isolation effect on the vertical vibration and torque vibration of the engine, and cannot isolate vibration in multiple directions, which is easy Cause the whole...

AI Technical Summary

Problems solved by technology

[0004] At present, the general-purpose engine mount adopts a simple horizontal four-point arrangement, which has a poor isolation and positioning effect on the engine, especially the isolation effect on the vertical vibration and torque vibration of the engine, and cannot isolate vibration in multiple directions, which is easy The vibration of the passenger car is relatively large, which affects the comfort of the ride

Especially for compact engines, especially when the gearbox is not allowed to be equipped with auxiliary supports, a general-purpose engine mount device is used, so that the distance between the front and rear support points of the engine is too close, the engine mount structure is unstable, and the vibration isolation effect is poor

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