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Parts assembling method used in actuator

An actuating device and component assembly technology, which is applied in the direction of measuring devices, engine components, fuel injection devices, etc., can solve the problem that the exhaust gas purification effect cannot be obtained satisfactorily, etc.

Active Publication Date: 2004-09-08
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the required exhaust gas purification effect cannot be satisfactorily obtained

Method used

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  • Parts assembling method used in actuator
  • Parts assembling method used in actuator
  • Parts assembling method used in actuator

Examples

Experimental program
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Effect test

no. 1 example

[0061] A preferred embodiment and a modified embodiment of the present invention will be described below based on an injector of an accumulator fuel injection system.

[0062] As an example, figure 1 The injector 1 shown in is installed in an accumulator fuel injection system for a diesel engine. The injector 1 receives high-pressure fuel supplied from a common rail (not shown), and injects the high-pressure fuel into a fuel chamber of the engine. figure 1 The disclosed embodiment is a two-way valve type injector.

[0063]

[0064] First, the configuration of the injector 1 is described.

[0065] The injector 1 includes: a nozzle (to be described below), an injector body 2 , a control piston 3 , first and second passage members 4 and 5 , and a solenoid valve 6 .

[0066] The nozzle includes: a nozzle body 7 having a nozzle hole 7 a formed at a distal end thereof, and a needle valve 8 slidably connected in an inner space of the nozzle body 7 . The nozzle b...

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PUM

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Abstract

A constituent parts assembling method for an actuating apparatus includes a step of assigning ID classification to each of constituent parts with reference to characteristics difference of respective parts when these constituent parts give influence to output characteristics of an injector. In the processes of assembling these constituent parts, when a selected constituent part has a certain ID classification being assigned beforehand, this assembling method includes a step of executing constituent part selection in accordance with an instruction of constituent part designating means which designates other constituent part having an ID classification corresponding to the ID classification assigned to the selected constituent part, and also includes a step of assembling the selected constituent parts into the injector.

Description

technical field [0001] The present invention relates to a method of component assembly for use in an actuating device comprising a plurality of components and producing an output in response to an input signal, and in particular to a method preferably suitable for use in an actuating device such as a fuel injection device Injector) technology, the actuating device contains multiple mechanical components and thus inherently has an output characteristic that is not easily adjustable by electronic adjustment alone. Background technique [0002] A typical example of an actuator consisting of several mechanical parts is an accumulator fuel injection system. [0003] For example, a well-known injector mounted in an accumulator fuel injection system is of the two-way valve type, comprising: a control chamber provided on the non-injection side of a control piston housed in the injector; A solenoid valve that opens / closes a passage that communicates the control chamber with the low-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M47/00F02M47/02F02M61/16F02M61/18F02M65/00
CPCF02M47/027F02M61/18F02M61/168F02M61/1806F02M65/005Y10T29/49231Y10T29/49405
Inventor 依田稔之佐光孝治
Owner DENSO CORP