Misplug-proof oil sprayer wire harness bracket
A wire harness bracket and fuel injector technology, which is applied in the direction of machines/engines, fuel injection devices, engine components, etc., can solve problems such as unfixed direction, wrong insertion of wire harnesses, and easy interference between wire harnesses and valve tappets, etc., to achieve wire harness assembly Accurate and reliable, the effect of wiring harness specification
Active Publication Date: 2010-02-24
WEICHAI POWER CO LTD
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Problems solved by technology
[0002] At present, among the electronically controlled high-pressure common rail diesel engines, the models whose body structure adopts the integral cylinder head occupy a large proportion. The wiring harness must pass through the cylinder and then be assembled on the fuel injector terminal. Multiple fuel injector wiring harnesses enter through the cylinder in groups, and each group contains multiple cylinders. The physical characteristics are the same, therefore, it is very easy to have the wrong wiring harness during assembly, that is, the wiring harness of cylinder 1 is connected to cylinder 2, the wiring harness of cylinder 2 is actually connected to cylinder 1, and the other cylinders 3 and 4, The same is true for cylinders 5 and 6. At this time, the engine ECU cannot correctly control the fuel injector, which leads to the effective operation of the fuel injector of the wrongly connected cylinder. Moreover, the direction of each cylinder of the wiring harness in the cylinder is not fixed, and the wiring harness is prone to vibration. , and the interference between the wiring harness and the valve lifter is easy to occur
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[0013] As shown in the accompanying drawings, the harness bracket of the anti-mistake fuel injector is installed on the rocker arm seat of the diesel engine through the bracket mounting hole, and includes a bracket body 3, which is in the shape of a bar; the bracket body 3 includes a mounting In the transverse mounting part on the rocker arm seat, the middle part of the transverse mounting part has an upward raised part 11, and the first fixed restraint clip beam 1 is vertically welded on the raised part 11; the end of the transverse installing part A downward bending extension 12 is provided, and the second fixing and restraining clip beam 5 is vertically welded on the bending extension 12 . The first wire harness fixing and restraining beam 1 and the second wire harness fixing and restraining beam 5 are arranged on both sides of the valve tappet, and the distances from the welding points 8 and 9 to each wire harness fixing and restraining clip are different. Both ends of the...
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The invention discloses a misplug-proof oil sprayer wire harness bracket which is arranged on the rocker arm support of a diesel engine. The misplug-proof oil sprayer wire harness bracket comprises abracket body, wherein the bracket body is provided with a wire harness fixing device, two wire harness fixing clamps are separately arranged on the two ends of the wire harness fixing device, the wireharness fixing clamps are arranged on the bracket body asymmetrically, and if the wire harnesses are connected in a wrong way, the wire harnesses can not be inserted so that the wire harness assemblyis accurate and reliable; in addition, the wire harnesses are clamped and fixed on the wire harness fixing clamps so that the wire harness routing is normal.
Description
technical field [0001] The invention relates to a wiring harness bracket of a wrong-insertion-proof fuel injector for a diesel engine. Background technique [0002] At present, among the electronically controlled high-pressure common rail diesel engines, the models whose body structure adopts the integral cylinder head occupy a large proportion. The wiring harness must pass through the cylinder and then be assembled on the fuel injector terminal. Multiple fuel injector wiring harnesses enter through the cylinder in groups, and each group contains multiple cylinders. The physical characteristics are the same, therefore, it is very easy to have the wrong wiring harness during assembly, that is, the wiring harness of cylinder 1 is connected to cylinder 2, the wiring harness of cylinder 2 is actually connected to cylinder 1, and the other cylinders 3 and 4, The same is true for cylinders 5 and 6. At this time, the engine ECU cannot correctly control the fuel injector, which lea...
Claims
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Inventor 常国丽张立君李士振
Owner WEICHAI POWER CO LTD