Direct-current layered scavenging two-stroke engine

An engine and two-stroke technology, which is applied in the field of DC stratified scavenging two-stroke engines, can solve the problems of increased engine height and complex ventilation system, etc.

Inactive Publication Date: 2019-08-23
梁刚
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many advantages of DC scavenging, but due to the addition of an exhaust valve mechanism, the ventilation system is co

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Direct-current layered scavenging two-stroke engine
  • Direct-current layered scavenging two-stroke engine
  • Direct-current layered scavenging two-stroke engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] as attached figure 1 , attached figure 2 , attached image 3 In the described embodiment, the two-stroke engine DC layered scavenging structure includes cylinder block 1, crankcase 2, piston 3, crankshaft flywheel set 4, exhaust port 5, main air inlet reed valve 6, piston pin 7. Spark plug 8, main scavenging channel tube 9, main scavenging channel port 10, scavenging port 11, secondary scavenging channel tube 12, secondary air inlet reed valve 13, gas storage spiral coil 14, throttle valve 15. There is a combustion chamber for installing the piston 3 inside the cylinder block 1, and the main scavenging channel pipe 9 is arranged in the center of the top of the piston, perpendicular to the top of the piston, on the central axis of the cylinder or parallel to the axis, and the upper part of the main scavenging channel pipe port 10 is ...

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

PUM

No PUM Login to view more

Abstract

The invention relates to a direct-current layered scavenging two-stroke engine. The direct-current layered scavenging two-stroke engine comprises an air cylinder body, a crankcase, a piston, a crankshaft flywheel set, an exhaust port, a main air inlet reed valve, a piston pin, sparking plugs, a main scavenging channel pipe, a main scavenging channel port, scavenging ports, an auxiliary scavengingchannel pipe, an auxiliary air inlet reed valve and an air storage spiral coil, wherein the main scavenging channel pipe is arranged at the top of the piston, the upper port is located in the auxiliary scavenging channel pipe, the lower end of the main scavenging channel pipe penetrates through the top of the piston and communicates with fuel gas in the crankcase, the auxiliary scavenging channelpipe is located on an air cylinder cover and penetrates through the air cylinder cover to enter a combustion chamber, the plurality of scavenging ports are uniformly distributed in the part, enteringthe combustion chamber, of the auxiliary scavenging channel pipe, and fuel mixed gas which is sucked by the main air inlet reed valve and fuel mixed gas which is sucked by the auxiliary air inlet reedvalve are mixed with air in the internal space of the piston to form an air layer, a fuel mixed gas diluting layer and a fuel mixed gas layer. According to the direct-current layered scavenging two-stroke engine, direct-current scavenging and layered scavenging are combined, so that the scavenging efficiency of the two-stroke engine is further improved.

Description

technical field [0001] The invention relates to a direct-flow stratified scavenging two-stroke engine, which is suitable for the technical field of internal combustion engines. Background technique [0002] The characteristic of two-stroke engine DC scavenging is that the exhaust valve is set on the cylinder head to replace the exhaust hole, so that the scavenging air flow moves along the axis of the cylinder, which greatly improves the quality of ventilation. The scavenging holes are arranged along the tangent, so that the fresh charge entering the cylinder rotates at high speed to form an "air cushion piston", which not only avoids excessive mixing of the fresh charge and exhaust gas, but also accelerates the exhaust gas upward, further improving the quality of ventilation. DC scavenging has many advantages, but due to the addition of an exhaust valve mechanism, the ventilation system is complicated and the height of the engine is increased, so it is mainly used in low-spe...

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

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F02B75/02F02B25/20
CPCF02B25/20F02B75/02F02B2075/025F02B2700/031F02B2700/037Y02T10/12
Inventor 梁刚齐欣梁璋梁安图
Owner 梁刚
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap