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Mechanical transmissions with hydraulic presses for motor vehicles

A technology for mechanical transmission and motor vehicles, applied in the fields of mechanical transmission devices and motor vehicles, can solve the problems of increasing radiated noise and harmfulness, and achieve the effects of reducing wear, reducing the suspended length and reducing the transmission of noise.

Inactive Publication Date: 2019-07-16
TECHNOBOOST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, these vibrations add to radiated noise which can be harmful especially in applications on motor vehicles

Method used

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  • Mechanical transmissions with hydraulic presses for motor vehicles
  • Mechanical transmissions with hydraulic presses for motor vehicles
  • Mechanical transmissions with hydraulic presses for motor vehicles

Examples

Experimental program
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Effect test

Embodiment Construction

[0034] figure 1Is a simplified view of a motor vehicle 2 comprising a mechanical transmission 4 according to the invention. The motor vehicle 2 comprises: a heat engine 3 and a mechanical transmission to the wheels, coupled to said heat engine and implemented via a coupling (of the clutch type that may or may not slip); a gearbox 6; differential. Said mechanical transmission 4 also comprises at least two hydraulic machines 8 and 10, of the pump or motor type and mounted on the housing 12 of said gearbox 6, and in said hydraulic machines 8 and 10 Each of them is coupled with a corresponding transmission shaft of the gearbox 6 . The transmission shaft is used to transmit the engine torque to the wheels via the gearbox; the transmission shaft is also a control shaft for transmitting the engine torque to the hydraulic machine. It can be seen that the vehicle 2 also comprises a pressure accumulator 14 at the level of the floor of the vehicle and a hydraulic fluid (in this exampl...

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PUM

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Abstract

The invention relates to a mechanical transmission (4) for a motor vehicle comprising: a gearbox (6) with a casing (12) and at least two transmission shafts (20, 22); at least one hydraulic machine (8, 10) of the pump or hydraulic motor type, mounted on the casing (12) and with a shaft (20, 22) coupled to one of the transmission shafts of the gearbox (6); at least one quarter, preferably at least one third, of the axial extent of the or of at least one of the hydraulic machines (8, 10) is housed in a cavity (32, 34) of the casing (12) of the gearbox (6). The invention also relates to a hybrid vehicle comprising such a mechanical transmission (4).

Description

technical field [0001] The invention relates to the field of motor vehicles. The invention relates more particularly to the field of mechanical transmissions of motor vehicles, including hydraulic machines. Background technique [0002] It is known in the industrial field to use hydraulic presses to generate linear movements, for example by means of jacks. In this application, a hydraulic press operates as a pump and produces a flow of high pressure oil that is used to generate motion. It is also known to use hydraulic machines to generate a rotary movement, for example by means of a hydraulic motor. In this application, the first hydraulic machine operates as a pump and the second hydraulic machine operates as a motor. Furthermore, these functions can be inverted. A transmission of this type may be implemented on a motor vehicle, in particular a hybrid motor vehicle, to convert stored mechanical energy into transmission work or vice versa. These machines are mountable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K17/04B60K6/12B60K17/10B60K15/07B60K17/06B60K17/08
CPCB60K6/12B60K15/07B60K17/08B60K17/10B60Y2400/15Y02T10/62
Inventor M·詹诺尼V·巴尔博萨佩雷拉
Owner TECHNOBOOST
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