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Drive device for a motor vehicle

A driving device and motor vehicle technology, applied in the direction of machine/engine, engine lubrication, mechanical equipment, etc., can solve the problems of reducing bearing life and unavoidable high bearing load

Inactive Publication Date: 2016-02-03
MAN TRUCK & BUS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in highly loaded engines with high ignition pressures and difficult mixed operating conditions, high bearing loads or reduced bearing life cannot be avoided even with the aid of such non-return valves

Method used

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  • Drive device for a motor vehicle
  • Drive device for a motor vehicle
  • Drive device for a motor vehicle

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Experimental program
Comparison scheme
Effect test

Embodiment approach 20

[0042] figure 2 A further embodiment 20 of the invention is shown, according to which the lubricant pump 3 is driven exclusively by the electric motor 2 . For this purpose, the electric motor 2 directly drives the pump drive shaft 5 . The drive shaft driven by the internal combustion engine is not drivingly connected to the oil pump 3 . In addition, a current sensor is set on the motor 2 to monitor the current. Furthermore, a sensor 17 for measuring the flow rate is arranged in the oil line 8 on the outlet side of the oil pump 3 . A not shown control device for controlling the motor 2 can control the operation of the motor based on the obtained flow value and current value.

[0043] image 3 A further drive 30 for driving the oil pump 3 is shown. In this case, the electric motor 2 and the internal combustion engine 9 are each independently driveably coupled via the drive shafts 5 , 6 driven therewith to the oil pump 3 . Both the shaft 5 driven by the electric motor 2 an...

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PUM

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Abstract

The invention relates to a drive device for a motor vehicle, in particular for driving an oil pump. The drive device comprises an explosive motor used for driving a motor vehicle, a lubricant pump used for providing a lubricant for the bearing of the explosive motor, and a pump-driven device. The pump-driven device and the lubricant pump can be in connection and / or perform connection in a driving mode, and by means of the pump-driven device, in an engine starting period and / or an engine closing period, the drive device can drive the lubricant pump independently from the explosive motor.

Description

technical field [0001] The invention relates to a drive device for a motor vehicle. The invention relates in particular to a device for driving a lubricant pump for supplying bearings of an internal combustion engine with lubricant. Background technique [0002] Internal combustion engines of motor vehicles require lubrication for internal combustion engine bearings, especially the highly loaded plain bearings of the crankshaft, connecting rods and camshafts. A lubricant pump is used for this, which is mechanically driven by the internal combustion engine and serves to supply lubricant under pressure for lubrication. [0003] Lubricants are often also referred to as oils, even though they are often no longer oils nowadays. Accordingly, the lubricant pumps required here are often also referred to as oil pumps or pressurized oil pumps. [0004] Lubricant pumps require a certain minimum rotational speed in order to generate an oil pressure for low-wear lubrication of bearing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/02
CPCF01M1/02F01M2001/0238F01M1/16
Inventor R.古蔡特
Owner MAN TRUCK & BUS AG