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Ignition device for igniting gas mixture in internal combustion engine powered by gas

A technology of gas mixture and ignition device, applied in the direction of engine ignition, internal combustion piston engine, combustion engine, etc., can solve the problems of rising maintenance cost and loss of internal combustion engines, achieve the effect of reducing throttling effect and prolonging service life

Active Publication Date: 2014-12-24
MAN ENERGY SOLUTIONS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result of corrosion, oxidation and erosion, this effect leads to a loss of the pre-chamber in the region of the transfer hole, so that the maintenance costs of the gas-operated internal combustion engine thus increase

Method used

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  • Ignition device for igniting gas mixture in internal combustion engine powered by gas

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Experimental program
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Embodiment Construction

[0040]The ignition device 1 has a schematically shown housing 2 , which, due to the section-varying outer diameter of the housing 2 , has a section-changing outer contour along the longitudinal extent of the housing 2 . This makes it possible to provide a housing shape that takes into account the thermal and mechanical loads acting on the housing during operation of the ignition device 1 , which lead to corresponding component stresses. In this case, the housing quite generally has a longitudinal extension which is larger than the transverse extension in the region of the largest housing diameter.

[0041] The housing has an inner recess 3 which has three sections of different arrangement and is designed as a pre-chamber 4 . The prechamber 4 has a prechamber belly 5 in which a spark plug 6 is arranged for igniting the gas mixture in the prechamber 4 .

[0042] The prechamber 4 is flushed with gas during the intake stroke of the main combustion chamber of the gas motor (not sh...

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Abstract

The invention relates to an ignition device for igniting a gas mixture in an internal combustion engine powered by gas, and the ignition device is used for igniting a gas mixture in a main combustion chamber (11) of the internal combustion engine powered by gas. The the ignition device (1) comprises a housing (2) having an internal recessed portion (3) for forming a pre-chamber (4) and a device (6) for providing ignition spark and igniting a gas mixture in the prechamber (4), and the housing (2) has an overflow hole (10) through which the the ignition spark can penetrate from the prechamber (4) to the main combustion chamber (11) so as to ignite the gas mixture in the main combustion chamber (11), the internal recessed portion (3) has a cross-section through expanding region (8) facing to the direction of the overflow hole (10).

Description

technical field [0001] The invention relates to an ignition device for igniting a gas mixture in the main combustion chamber of a gas-operated internal combustion engine, wherein the ignition device has a housing with an internal recess configured as a pre-chamber and a device for providing an ignition spark device for igniting the gas mixture in the pre-chamber, and the housing has an overflow hole for the ignition flame (Zündfackel) to penetrate from the pre-chamber into the main combustion chamber for igniting the gas in the main combustion chamber mixture. Background technique [0002] In order to reduce pollutant emissions, gas motors are usually operated as lean-burn motors (Magermotors) with a high excess air, so that in order to reliably ignite the lean mixture, such motors require an initial ignition (Initial Zündung), which diffuses into the main combustion chamber , that is to say, in such a way that the pilot ignition is not extinguished before the gas mixture s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B19/12
CPCF02B43/00H01T13/54F02B19/12F02P13/00F02P15/006Y02T10/12Y02T10/30
Inventor S. 施托尔M. 伦茨
Owner MAN ENERGY SOLUTIONS SA
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