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Opposed-valve uniflow scavenging engine

An engine and scavenging technology, applied to engine components, combustion engines, machines/engines, etc., can solve the problem of no lubricating oil

Pending Publication Date: 2021-12-28
耿光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there is no lubricating oil inside the crankcase of an ordinary two-stroke engine. When refueling, engine oil needs to be added at the same time. When working, the oil is sucked into the crankcase together with gasoline, and these oil particles are used to lubricate the engine. Therefore, ordinary two-stroke engines are born with their own burning oil. Attributes

Method used

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  • Opposed-valve uniflow scavenging engine
  • Opposed-valve uniflow scavenging engine

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] A direct-current scavenging engine with opposed valves, comprising a cylinder liner (1), a piston (2), a guide rod (3), an intake spring (3-1), an intake passage (3-2), and an intake valve (4), exhaust valve (5), camshaft (6), top block (7), ejector pin (7-1), combustion chamber (8), cylinder head (9).

[0019] The piston (2) drives a crankshaft placed on one side of the guide rod (3) or two crankshafts placed on both sides of the guide rod (3) through the guide rod (3), crosshead and connecting rod.

[0020] The exhaust valve (5) is arranged in the cylinder head (9), and the intake valve (4) is arranged in the piston (2).

[0021] The guide rod (3), the intake valve (4) and the piston (2) slide vertically together in the cylinder liner (1), and the guide rod (3) bears the lateral pressure instead of the piston (2).

[0022] The guide rod (3) is 'h' type, and the bottom of the guide rod (3) is provided with an intake spring (3-1) to control the opening and closing of t...

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Abstract

The invention provides an opposed-valve uniflow scavenging engine. Two strokes and four strokes use the same integral structure and share all complete systems. The engine has the advantages that power output of an existing two-stroke mode is achieved, a piston is not subjected to lateral force, and also has a four-stroke lubricating and cooling mode; and due to the fact that no through hole is formed in the circumferential direction of a cylinder sleeve, manufacturing, installation and maintenance are convenient, and an optimal scheme is selected in the aspects of cost, power and environmental protection.

Description

technical field [0001] The invention relates to a direct-flow scavenging engine with opposed valves. Background technique [0002] In the current four-stroke engine, the four strokes are completed independently in sequence during the working process. The piston needs to go back and forth twice every time it does work, that is, when doing a work, the crankshaft connected by the piston and connecting rod needs to rotate two times, and one of them is completely in the middle. consume energy. [0003] The two-stroke principle is rarely used in the automobile (including construction machinery) industry, but it is widely used in large low-speed marine diesel engines. The main reason is that the speed of the marine diesel engine is relatively low, and the two-stroke cycle is conducive to the maximum power performance and economic performance of the diesel engine, without causing too high a heat load and reducing the service life of the parts. And because of the crosshead, the pis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B25/04F01L3/10F01L13/00
CPCF02B25/04F01L3/10F01L13/0036Y02T10/12
Inventor 耿光
Owner 耿光