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Valve devices for switching or measuring fluids

一种阀装置、流体的技术，应用在燃料喷射装置、装料系统、发动机元件等方向，达到改善耐抗性、流动速度提高、流量系数提高的效果

Active Publication Date: 2017-06-06
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The problem on which the invention is based is solved by the valve arrangement according to the invention and the quantity control valve according to the invention

Method used

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  • Valve devices for switching or measuring fluids
  • Valve devices for switching or measuring fluids
  • Valve devices for switching or measuring fluids

Examples

Experimental program
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Embodiment Construction

[0027] In the figures, identical or functionally identical elements are each provided with the same reference symbols.

[0028] exist figure 1 A fuel system 10 of an internal combustion engine is shown in a particularly simplified illustration. Fuel is supplied from the fuel tank 12 via the suction line 14 to the high pressure pump 24 (not explained in detail here) by means of the prefeed pump 16 via the low pressure line 18 and the valve means 22 operated by the electromagnet 20, the valve means 22 is currently the quantity control valve 22. The high-pressure pump 24 is connected downstream via a high-pressure line 26 to a high-pressure accumulator 28 . The remaining components, such as the outlet valve of the high-pressure pump 24, are figure 1 not shown in . However, it is understood that the valve device 22 or the quantity control valve 22 can be configured as a component of the high-pressure pump 24 , for example the quantity control valve 22 is an inlet valve of the ...

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PUM

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Abstract

The invention relates to a valve device (22) for switching or measuring fluids, comprising a housing (30), a flow channel (38) and a valve body (36) arranged in the flow channel (38), the valve body With a sealing section (34) which rests against the housing-side sealing seat (32) when the valve unit (22) is closed, wherein the sealing section (34) and the sealing seat (32) together form a sealing area (42), and wherein, when the valve arrangement (22) is closed, there is a disintegration chamber (44) in the flow channel (38) immediately upstream of the sealing area (42), which is closed by the baffle (46 ), wherein the baffle ( 46 ) is inclined relative to the normal ( 58 ) of the sealing region ( 42 ) at an angle of at most 15° in the flow direction to at most 60° in the direction against the flow direction.

Description

technical field [0001] The invention relates to a valve device and a quantity control valve. Background technique [0002] Valve arrangements, such as quantity control valves for fuel systems of internal combustion engines, are known on the market. Such a valve arrangement usually has a valve body which is attached to a sealing section opposite the housing-side sealing seat and with which the valve arrangement is closed. The sealing seat is, for example, planar, cylindrical, spherical or conical. In the closed state of the valve device, pressure pulsations occur in the hydraulic line connected to the valve device, whereby liquid vapor ("bubble") is generated in the region of the sealing end or sealing seat. When the gas bubbles collapse, so-called cavitation occurs at the sealing end in the vicinity of the housing and / or the valve body. Contents of the invention [0003] The problem on which the invention is based is solved by the valve arrangement according to the inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M59/36F02M59/46F02M63/00
CPCF02M59/366F02M59/367F02M63/0077F02M63/0078F02M59/36F02M59/46F02M63/00F02M59/462F02M59/466
Inventor H·罗特D·布伦纳
Owner ROBERT BOSCH GMBH
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