Carbon-Deposit Protection System For A Sheathed-Element Glow Plug Having A Gas Conduit For Pressure Measurement

a technology of gas conduit and protection system, which is applied in the direction of lighting and heating apparatus, applications, instruments, etc., can solve the problems that carbon residues or combustion residues cannot reach the particularly sensitive pressure sensor
US20080067165A1Inactive Publication Date: 2008-03-20ROBERT BOSCH GMBH
0 Cites 2 Cited by

Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
ROBERT BOSCH GMBH
Publication Date
2008-03-20
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A sheathed-element glow plug for an internal combustion engine, made up substantially of a plug housing and a glow element disposed in the plug housing, having a gas conduit for measuring the combustion chamber pressure. A gas-permeable filter element, provided according to the present invention in the gas conduit, prevents the penetration of carbon residues or combustion residues into the interior of the sheathed-element glow plug, or reduces particle entry to a tolerable level.
Need to check novelty before this filing date? Find Prior Art

Description

FIELD OF THE INVENTION

[0001] The invention relates to a sheathed-element glow plug for an internal combustion engine, made up substantially of a plug housing and a glow element disposed in the plug housing, having a gas conduit for measuring the combustion chamber pressure. DESCRIPTION OF RELATED ART

[0002] For good starting and warmup behavior at low temperatures, diesel engines require a heat source that preheats either the gas mixture, the intake air, or the combustion chamber. For passenger-car engines, the use of sheathed-element glow plugs is generally proposed. These encompass a plug housing and a glow element that projects out of the plug housing and, in its installed state, projects out of the cylinder head into the combustion chamber of an internal combustion engine. As a rule, the glow elements of the sheathed-element glow plugs project 4 mm into the combustion chamber of the internal combustion engine, and heat the diesel / air mixture. The glow temperature that is reache...

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