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Pressure control valve for a hydraulic device, and use of said pressure control valve

A technology of pressure control and hydraulic device, applied in the direction of control valve, valve device, engine control, etc., can solve the problems of fluctuation, high noise radiation of pressure control valve, high cost, improve stability, simplify manufacturing, and stabilize characteristic curve. Effect

Inactive Publication Date: 2010-04-14
CONTINENTAL AUTOMOTIVE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The known pressure control valve has the disadvantage that the valve body requires lateral guides so that the valve body is reliably guided back onto the valve seat by the spring element
However, lateral guides are complex to produce and lead to friction
This friction causes fluctuations in the opening and closing pressures and in the characteristic curve of the limit flow (or regulation flow) discharged through the pressure control valve
In addition, the known pressure control valve has a particularly high noise emission

Method used

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  • Pressure control valve for a hydraulic device, and use of said pressure control valve
  • Pressure control valve for a hydraulic device, and use of said pressure control valve
  • Pressure control valve for a hydraulic device, and use of said pressure control valve

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Embodiment Construction

[0029] figure 1 A fuel tank 1 and an internal combustion engine 2 of a motor vehicle are shown. A swirl box 3 with a fuel pump 4 arranged therein is arranged in the fuel tank 1 . The fuel pump 4 delivers the fuel in the swirl tank 3 to the fuel filter 5 designed as an annular filter and the injection pump (ie, injection pump) 6 . The jet pump 6 delivers fuel from the fuel tank 1 to the anti-swirl tank 3 . A fuel line 7 leads from the fuel filter 5 to the internal combustion engine 2 . Furthermore, the fuel filter 5 has a pressure control valve 8 which opens when a predetermined pressure is reached in the fuel filter 5 and enables fuel to be discharged into the swirl tank 3 .

[0030] figure 2 shown in cross section figure 1 The pressure control valve 8 in. The pressure control valve 8 has a housing 9 with a valve seat 10 and a control inlet 11 . The control inlet 11 opens into a conduit 12 leading to the valve seat 10 . In the shown position of the pressure control va...

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Abstract

Disclosed is a pressure control valve (8) for a hydraulic device, particularly a fuel supply system of a motor vehicle, comprising a valve seat (10) that is disposed between a valve member (13) and aspring element (16) for biasing the valve member (13) counter to the valve seat (10). The valve member (13) and the spring element (16) are interconnected via a traction element (14) such that the valve member (13) is reliably guided towards the valve seat (10) without using any additional guiding elements.

Description

technical field [0001] The invention relates to a pressure control valve for a hydraulic device, which has a valve body pre-pressed against a valve seat and a spring element for pre-pressing the valve body. Furthermore, the invention relates to an advantageous use of a pressure control valve. Background technique [0002] Pressure control valves are frequently installed in hydraulic installations for discharging excess pressure in tanks or lines, and this is known in practice. In the pressure control valves known from practice, the spring element is arranged on the lower pressure side. If the pressure increases on the side of the valve body facing away from the spring element, the valve body is pressed away from the valve seat against the force of the spring element. The cracking pressure of the disclosed pressure control valve depends on the pressure difference and elastic force on both sides of the valve body. [0003] The known pressure control valve has the disadvanta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/04F16K17/04F02M69/54
CPCF16K17/0406F02M69/54F16K15/044Y10T137/7928F16K27/0209
Inventor 勒内·施密德亚历山大·松塔格汉斯-迪特尔·威廉迪尔克·默林
Owner CONTINENTAL AUTOMOTIVE GMBH