Vibration damper for high-pressure fuel pump, high-pressure fuel pump with vibration damper and method for controlling such a vibration damper

A vibration damper and high-pressure fuel pump technology, which is applied in fuel injection pumps, vibration suppression adjustment, rotation vibration suppression, etc., can solve the problems of not matching the operating conditions of the fuel pump and the non-adjustable torsional vibration damper, so as to save the sensor unit, structure cost reduction, and effect of construction cost reduction

Active Publication Date: 2020-03-10
VTESCO TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such torsional vibration dampers are not adjustable and therefore cannot be adapted to the currently prevailing operating conditions of fuel pumps

Method used

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  • Vibration damper for high-pressure fuel pump, high-pressure fuel pump with vibration damper and method for controlling such a vibration damper
  • Vibration damper for high-pressure fuel pump, high-pressure fuel pump with vibration damper and method for controlling such a vibration damper
  • Vibration damper for high-pressure fuel pump, high-pressure fuel pump with vibration damper and method for controlling such a vibration damper

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Embodiment Construction

[0022] exist figure 1 A vibration damper is shown in , which may comprise a first flywheel mass 11 and a second flywheel mass 12 . The two flywheel masses 11 and 12 can be connected to one another via a hydraulic element 21 (hereinafter also referred to as damper element 21 ) and are designed to be movable relative to one another. The damper element 21 can have a working space 25 , a corresponding space 32 and a valve 31 . Furthermore, the damper element can also have a plurality of valves. The flow through the valve 31 can be controlled during operation of the damper element 21 . Not only can the valve 31 be controlled steplessly, but also the valve 31 can be controlled within arbitrarily short time intervals. The working space 25 and the corresponding space 32 may be hydraulically connected to each other. Said valve 31 can be arranged between the working space 25 and the corresponding space 32 and be hydraulically connected both to the working space 25 and to the corresp...

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Abstract

The invention relates to a vibration damper for a high-pressure fuel pump in internal combustion engines, to a high pressure fuel pump, and to a method for controlling a vibration damper. The vibration damper comprises a first centrifugal mass and a second centrifugal mass, which are designed to be rotatable relative to one another, and a damping element having a valve, wherein the damping element connects the first centrifugal mass and the second centrifugal mass to one another, and wherein the valve has a continuously controllable flow.

Description

technical field [0001] The invention relates to a vibration damper for a high-pressure fuel pump, a high-pressure fuel pump with a vibration damper and a method for controlling such a vibration damper. Background technique [0002] High pressure fuel pumps are used in many modern vehicles. For example, high-pressure fuel pumps are often designed as piston pumps, which are driven, for example, by belts or chains. The high-pressure fuel pump can deliver diesel at pressures up to 3000 bar. For gasoline fuel the pressure may be at up to 500 bar. The driving force required to operate the high-pressure fuel pump is in most cases not constant over time, and inhomogeneities occur in the required driving force or the required torque. Said inhomogeneities can also be caused by different resistance ratios in the pump interior. These inhomogeneities lead to vibrations, which can then be transmitted by the high-pressure fuel pump to the drive unit and the surrounding structural compo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/16
CPCF16F15/162F02M59/44
Inventor T.施密德鲍尔
Owner VTESCO TECH GMBH
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