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Fuel pressure sensor/sensor mount assembly

一种燃料压力、传感器的技术，应用在具有传感器的燃料喷射装置、燃料喷射装置、机器/发动机等方向，能够解决安装工序增加等问题

Active Publication Date: 2009-09-30
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The structures disclosed in the above publications require installation of a plurality of fuel pressure sensors in the engine, thereby resulting in increased installation processes in the engine room

Method used

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  • Fuel pressure sensor/sensor mount assembly
  • Fuel pressure sensor/sensor mount assembly
  • Fuel pressure sensor/sensor mount assembly

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0031] Referring to the drawings, wherein like reference numerals refer to like parts throughout the several views, and in particular figure 1 , shows a fuel pressure sensor / sensor mount assembly according to a first embodiment of the present invention. A fuel injector INJ is installed in each cylinder of an internal combustion engine (such as an automobile diesel engine) and is mechanically connected to a common rail CL. figure 2 is a longitudinal sectional view showing the internal structure of each injector INJ. image 3 is a schematic perspective view showing a connector unit 70 equipped with a sensor mount described in detail below. Fig. 4 (a) is that the connector unit 70 viewed from the arrow I direction consists of image 3 The cross-sectional view indicated by the dotted line in .

[0032] figure 2 Each injector INJ shown operates to inject fuel supplied from the common rail CL into a corresponding one E1 of the combustion chambers of the internal combustion eng...

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PUM

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Abstract

A fuel pressure sensor / sensor mount assembly for use in a fuel injection system equipped with fuel injectors which inject fuel, as supplied from an accumulator through fuel pipes, into a multi-cylinder internal combustion engine mounted in an engine compartment of a vehicle. The assembly includes a connector unit and fuel pressure sensors. The connector unit has formed therein a plurality of communication paths each of which is to establish a connection between one of the fuel injectors and the accumulator through one of the fuel pipes. The connector unit also has formed therein sensor mounts exposed to the communication paths. Each of the fuel pressure sensors is disposed in the sensor mount to measure the pressure of the fuel in the communication path. This structure permits steps of installing the fuel pressure sensors within the engine compartment to be decreased and ensures desired measurement accuracy of the fuel pressure sensors.

Description

technical field [0001] The present invention generally relates to a fuel pressure sensor / sensor mount assembly in which a fuel pressure sensor is mounted to be exposed in a high pressure fuel passage through which fuel is supplied to a fuel injector. Background technique [0002] In order to ensure the accuracy of controlling the output torque of the internal combustion engine and the amount of exhaust gas emitted therefrom, it is necessary to control the fuel injection mode, such as the amount of fuel injected from the fuel injector or the injection timing at which the fuel injector starts injecting fuel. In order to control such a fuel injection pattern, various techniques have been proposed for monitoring changes in fuel pressure at the time of injection by a fuel injector. [0003] Specifically, the time at which fuel pressure begins to drop due to injection of fuel from the fuel injector may be used to determine the actual injection time at which fuel has actually been ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M51/06G01L23/00
CPCF02M2200/24F02M47/027F02M57/005F02M55/02F02M61/14F02M53/00
Inventor 近藤淳藤野友基
Owner DENSO CORP