Unlock instant, AI-driven research and patent intelligence for your innovation.

Device for acting upon a pressure sensor mounted on a preheated spark plug

A pressure sensor and spark plug technology, applied in combustion ignition, incandescent ignition, engine ignition, etc., can solve problems such as increased cost, parts installation problems, and the impact of pressure sensor sensitivity.

Inactive Publication Date: 2009-08-26
SIEMENS VDO AUTOMOTIVE CORP +1
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] [07] The solution has the disadvantage that at least three parts are arranged between the spark plug finger and the pressure sensor
This raises the cost of these various parts on the one hand and causes installation problems of said parts on the other hand
In addition, it should be noted that the presence of multiple contact surfaces (between the pressure sensor and the insulating component, between the insulating component and the support part, and between the support part and the spacer) has an adverse effect on the sensitivity of the pressure sensor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for acting upon a pressure sensor mounted on a preheated spark plug
  • Device for acting upon a pressure sensor mounted on a preheated spark plug
  • Device for acting upon a pressure sensor mounted on a preheated spark plug

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] [28] figure 1 A pattern of glow plugs prior to the present invention (not disclosed at the time of initial filing of this claim) is shown. The spark plug includes a pressure sensor for measuring pressure in the engine cylinder. Said glow plug 2 is represented in a conventional manner in a diesel engine 4 , more precisely it is located in the cylinder head 6 of said engine. The glow plug includes a main body 8 , a finger rod body 10 , a core body 12 and a pressure sensor 14 .

[0029] [29] The main body 8 is adapted to be fixed on the engine 4 with screws. For this purpose, the cylinder head 6 includes a cylinder bore, which passes through and flows into the combustion chamber of the engine. The main body 8 has a thread 16 on the outer surface corresponding to the screw hole on the cylinder head 6 . When the thread 16 cooperates with the bore in the cylinder head 6, the spark plug is in the mounted position of the engine 4, a part of the body 8 extends towards the in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Said device is a force transmission device (38') for a pressure sensor (14) in an internal combustion engine, connected to a glow plug, in the form of a tubular part with a substantially circular cross-section. It includes a region (40) of an outer diameter which increases progressively as one end of the region is approached. The front face corresponding to said flared end is a bearing surface for receiving a piezoelectric pressure sensor (14). The invention also relates to a glow plug having the force transmission device.

Description

technical field [0001] [01] The present invention relates to a device acting on a pressure sensor mounted on a glow plug. Background technique [0002] [02] It is known that in internal combustion engines, in particular of the Diesel type, a pressure sensor is incorporated on the glow plug. The sensor measures the pressure inside the engine. Knowledge of this pressure allows better control over the course of combustion in the engine. Therefore, the efficiency of the engine can be better grasped, on the one hand to reduce the consumption during vaporization, and on the other hand to reduce the emission of pollutants. [0003] [03] A glow plug generally consists of a tubular body with a threaded portion on the outer surface which enables it to be secured in a corresponding bore in the top of the cylinder head. A part of the body is located inside the combustion chamber and another part is located outside the combustion chamber. The inner portion of the combustion chamber h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F23Q7/00F02N99/00F02N19/02
CPCF23Q7/001F23Q2007/002F02P19/028F23Q7/00
Inventor M·布卡尔B·拉斯特C·帕特里A·拉蒙J·伯罗斯S·戈雷蒂
Owner SIEMENS VDO AUTOMOTIVE CORP