Electromagnetically actuable proportional flow valve, and method for operating an electromagnetically actuable proportional flow valve

A flow proportional valve, electromagnetic operation technology, applied in the direction of flow control, non-electric variable control, valve heating/cooling device, etc., can solve the problem of filter element clogging, to ensure flow regulation, reduce the risk of clogging, reliable flow Adjustment effect

Inactive Publication Date: 2017-03-01
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this alone is generally not sufficient to reliably prevent clogging of the filter element of the metering unit

Method used

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  • Electromagnetically actuable proportional flow valve, and method for operating an electromagnetically actuable proportional flow valve
  • Electromagnetically actuable proportional flow valve, and method for operating an electromagnetically actuable proportional flow valve
  • Electromagnetically actuable proportional flow valve, and method for operating an electromagnetically actuable proportional flow valve

Examples

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Embodiment Construction

[0024] figure 1 The flow proportional valve shown in includes a valve housing 1 in which at least one inlet opening 2 is formed. The inlet opening 2 is in the present case embodied as a radial bore and is surrounded on the outer peripheral side by a filter element or sieve 3 . At least one heating wire 4 is integrated into the sieve or mesh of the filter element or sieve 3 , said heating wire being part of an electrical heating device for heating the filter element or sieve 3 . The heating wires 4 are respectively connected via electrical lines 5 to electrical lines 6 and 7 of an electromagnet 8 capable of actuating the valve. The actuation of the filter element or the electric heating of the sieve 3 thus takes place parallel to the actuation of the electromagnet 8 . In order to enable a desired actuation of the electrical heating device, a temperature switch 9 is arranged in the electrical line 5 . The temperature switch is only switched on when the temperature of the fuel...

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Abstract

The invention relates to an electromagnetically actuable proportional flow valve for flow regulation in a fuel injection system, in particular in a common-rail injection system, comprising a valve housing (1) with at least one feed bore (2), upstream of which there is arranged a filter element or screen (3). According to the invention, an electric heating device is provided for heating the filter element or screen (3). The invention also relates to a method for operating an electromagnetically actuable proportional flow valve for flow regulation in a fuel injection system, in particular in a common-rail injection system.

Description

technical field [0001] The invention relates to a solenoid-actuated flow proportional valve having the features of the preamble of claim 1 for flow control in fuel injection systems, in particular common rail injection systems. Such a flow proportional valve can be used in particular as a metering unit which, depending on the operating point, supplies a required quantity to a high-pressure fuel pump of a fuel injection system on the low-pressure side. Furthermore, the invention relates to a method for operating a solenoid-actuatable flow proportional valve for flow regulation in a fuel injection system, in particular a common rail injection system. Background technique [0002] Flow proportional valves of the aforementioned type are very sensitive to dirt and are therefore often equipped with filter elements or sieves in order to prevent dirt particles contained in the fuel from penetrating into the valve. [0003] For example, from the publication DE 10 2010 062 455 A1 a f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M53/00F02M59/34F02M59/46F02M63/00
CPCF02M53/00F02M59/34F02M59/466F02M63/0017F02M63/0056F02M2200/27F02D41/064F02D41/3854F02D2200/0606F02M21/0218F02M63/004F02N19/04G05D7/0635G05D23/19Y02T10/30F16K3/0209F16K49/002
Inventor M·贝克
Owner ROBERT BOSCH GMBH
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