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Cylinder head and gas engine

A gas engine and cylinder head technology, which is applied to combustion engines, gaseous engine fuels, internal combustion piston engines, etc., can solve the problem of difficulty in generating tumble flow in gas engines, reduce the loss of airflow kinetic energy, improve the tumble flow effect, and reduce airflow. The effect of hedging interference

Active Publication Date: 2021-12-17
WEICHAI POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that it is difficult to generate the tumble flow required by the gas engine in the cylinder for the existing gas engine cylinder head designed by the integrated transformation of the diesel engine cylinder head

Method used

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  • Cylinder head and gas engine
  • Cylinder head and gas engine
  • Cylinder head and gas engine

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Embodiment Construction

[0036] The core of the invention is to provide a cylinder head and a gas engine to improve the tumble flow effect in the combustion chamber of the gas engine developed on the basis of the diesel engine.

[0037] In order for those skilled in the art to better understand the technical solutions provided by the present invention, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0038] like Figure 1-Figure 5 As shown, the embodiment of the present invention provides a cylinder head, which is applied to a gas e...

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Abstract

The invention discloses a cylinder head and a gas engine, which are applied to a gas engine modified on the basis of a diesel engine. The throat is provided with a first intake valve seat, and the second intake throat is provided with a second intake valve seat, and the height H of the first intake valve seat from the bottom surface of the cylinder head is 1 Greater than the height H of the second intake valve seat from the bottom surface of the cylinder head 2 . Compared with the traditional symmetrical arrangement of two intake valve seat rings, this cylinder head can effectively reduce the airflow hedging interference in the direction of the center line of the two intake valves, thereby reducing the loss of airflow kinetic energy, which is more conducive to Improves the tumble effect in the combustion chamber.

Description

technical field [0001] The invention relates to the technical field of engine air intake, in particular to a cylinder head and a gas engine. Background technique [0002] With the development of gas engine technology, more and more gas engines are modified on the basis of diesel engines. For a diesel engine, its combustion mode is diffusion combustion, and a certain degree of vortex helps the oil jet to mix with air, thereby improving the combustion process. Therefore, it is necessary for the intake port in the engine cylinder head to organize the airflow during the intake process. Sufficient swirl ratio. Among them, the vortex refers to the organized swirling movement of the gas around the cylinder axis. [0003] However, the combustion mode of a gas engine is premixed combustion, which does not require high vortex strength, but requires small-scale turbulent motion to form flame folds, thereby speeding up flame propagation and improving thermal efficiency. Among them, tu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F1/42F02B31/04F01L3/22F02B43/00
CPCF02F1/4235F02B31/04F01L3/22F02B43/00Y02T10/12Y02T10/30
Inventor 李卫吕顺王霞
Owner WEICHAI POWER CO LTD
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