A two-stroke internal combustion engine

A two-stroke internal combustion engine and combustion chamber technology, which is applied to internal combustion piston engines, combustion engines, mechanical equipment, etc., can solve the problem that consumption has not been substantially reduced.

Active Publication Date: 2018-12-18
郎溪品旭科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of scavenging through pure air is called "stratified scavenging" in the market. Although it can reduce the emission of unburned gasoline mixture, it still cannot greatly reduce the loss of the original gasoline mixer. , and the consumption in emissions has not been substantially reduced

Method used

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  • A two-stroke internal combustion engine
  • A two-stroke internal combustion engine
  • A two-stroke internal combustion engine

Examples

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] Please refer to the attached figure 1 , a two-stroke internal combustion engine, the internal combustion engine has a cylinder 1 and a crankcase 13, a piston 11 is accommodated in the cylinder 1, and a crankcase 131 is enclosed by the crankcase 13 below the cylinder 1, and the crankcase 13 can be A crankshaft is rotatably supported to realize the reciprocating movement of the piston 11 up and down through a connecting rod 14 and a cam 141 . Inside the cylinder 1 there is provided a hemispherical combustion chamber 12, the bottom of which is delimited by the upper surface of the piston 11, into which a spark plug 15 is screwed in a hole in the top part of the cylinder head. Cooling fins 16 are provided on the outer peripheral arm of the cylinder 1 .

[0039] Please refer to the attached figure 1 combined with the attached Figure 5 , the inner diamete...

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PUM

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Abstract

The invention discloses a two-stroke internal combustion engine which solves the problems that in the work process of a two-stroke internal combustion engine, some non-combusted scavenging gas can break away from an exhaust port so as to flow into the atmosphere, which will result in pollution and lowering of the combustion efficiency. According to the technical scheme of the two-stroke internal combustion engine, the two-stroke internal combustion engine is characterized in that a first scavenging port of a first-stage scavenging channel is higher than a second scavenging port of a second-stage scavenging channel; the two-stroke internal combustion engine further comprises a plurality of auxiliary gas inlet channels communicating a combustion chamber with a crankcase; and auxiliary gas inlets of the auxiliary gas inlet channels are located below the first scavenging port. It is achieved that non-combusted gasoline mixed gas in tail gas exhausting is effectively reduced, and the scavenging efficiency can be improved.

Description

technical field [0001] The invention relates to a two-stroke internal combustion engine, which is suitable for a portable power machine, in particular to a two-stroke internal combustion engine which discharges cleaner exhaust gas and can reduce unburned air mixture. Background technique [0002] The intake, exhaust and scavenging of the two-stroke internal combustion engine are realized by the general-purpose piston opening and closing the corresponding holes on the cylinder wall in due course. The exhaust gas is discharged from the exhaust pipe under the high pressure in the cylinder, and the pressure in the cylinder becomes low. When the piston is lowered to the lowest point, the scavenging port is opened, and the fresh mixed gas pre-compressed by the crankcase enters the combustion chamber at a pressure higher than that in the cylinder, and continues to squeeze out a small amount of residual exhaust gas. The unburned combustible mixture will be discharged with the exhau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B25/00F02F1/22F02B75/02
CPCF02B25/00F02B75/02F02B2075/025F02F1/22Y02T10/12
Inventor 周辉
Owner 郎溪品旭科技发展有限公司
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