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Pre-combustion chamber of an internal combustion engine and method of operating the same

A pre-combustion chamber and combustion chamber technology, applied to internal combustion piston engines, combustion engines, mechanical equipment, etc.

Active Publication Date: 2014-03-12
CATERPILLAR MOTOREN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Potential miniaturization of the pre-combustion chamber in an effort to meet future emissions regulations, power take-off requirements and performance of internal combustion engines including the end of the pre-combustion chamber

Method used

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  • Pre-combustion chamber of an internal combustion engine and method of operating the same
  • Pre-combustion chamber of an internal combustion engine and method of operating the same
  • Pre-combustion chamber of an internal combustion engine and method of operating the same

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Embodiment Construction

[0027] The following is a detailed description of exemplary embodiments of the present invention. The exemplary embodiments described herein and illustrated in the drawings are intended to teach the principles of the invention, enabling those skilled in the art to implement and use the invention in many different environments and for many different applications. Therefore, the exemplary embodiments are not intended and should not be considered as limiting the scope of patent protection. The scope of patent protection shall be defined by the appended claims.

[0028] The invention may be partly based on the recognition that arranging the orifices of the pre-combustion chamber of an internal combustion engine at different inclinations with respect to the central axis of the pre-combustion chamber can effectively utilize the limited space in the room and still ensure a stable transfer of the burned fuel to the main combustion chamber of the internal combustion engine.

[0029] ...

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Abstract

The invention relates to a pre-combustion chamber of an internal combustion engine and method of operating the same. A pre-combustion chamber tip (76) of an internal combustion engine (10) exposed to high thermal and mechanical stress may be limited in space for arranging orifices (190, 290) fluidly communicating with a main combustion chamber (26) of the internal combustion engine. It is disclosed to efficiently use the limited space by providing a first group of orifices (190) extending at a first angle (+-) with respect to a center axis (112) and a second group of orifices (290) extending at a second angle with respect to the center axis (112), wherein the outlets of the orifices are arranged at a first axial position (P1).

Description

technical field [0001] The present invention generally relates to a pre-combustion chamber tip for a pre-combustion chamber assembly of an internal combustion engine. More specifically, the present invention relates to a pre-combustion chamber end of a gaseous fueled internal combustion engine, wherein the pre-combustion chamber end includes a first set of orifices and a second set of orifices. Background technique [0002] It is known to use pre-combustion chambers in some internal combustion engine applications, for example in gaseous fuel applications. Typically, the pre-combustion chamber is a relatively small gas collection cavity located in the cylinder head of the engine. The pre-chamber is in fluid communication with the engine's main combustion chamber via several small orifices. During operation, the spark plug ignites the gaseous fuel in the pre-combustion chamber (as opposed to igniting the gaseous fuel in the main combustion chamber). Ignition of the gaseous ...

Claims

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Application Information

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IPC IPC(8): F02B19/16
CPCY02T10/125F02B19/18F02B19/12F02B19/108F02P13/00Y02T10/12F02B19/00F02B19/16
Inventor E.J.斯克塞尔D.韦斯特
Owner CATERPILLAR MOTOREN
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