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Motorcycle with two-stroke engine

A motorcycle and engine technology, used in combustion engines, machines/engines, internal combustion piston engines, etc., can solve problems such as unreliable sealing and separation, scavenging loss, etc.

Inactive Publication Date: 2005-08-24
RICARDO UK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult and expensive to do so in practice, and it has also been found in practice that these spaces cannot be reliably sealed off from each other, so that the scavenging is in fact not done with pure air, but with at least a portion of the unburned fuel contained air, which still results in considerable scavenging losses

Method used

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  • Motorcycle with two-stroke engine
  • Motorcycle with two-stroke engine
  • Motorcycle with two-stroke engine

Examples

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Embodiment Construction

[0024] The motorcycle is of generally conventional construction, consisting of a frame supporting the driver's seat, a steered front wheel and a drive connected through a drive train (transmission system) to the output of a small two-stroke engine, usually 50-100cc displacement. rear wheel. The drive train may include a manual clutch and a manual gearbox, but preferably it includes a centrifugal clutch and a continuously variable transmission (CVT), that is, a transmission system whose speed ratio is automatically and gradually changed on demand, which is important for It is well known for motorcycles.

[0025] The engine comprises a single piston 2 reciprocatably housed in a cylinder 4 closed by a cylinder head 6 in which a spark plug 8 is mounted. The piston is connected with a crankshaft 12 through a connecting rod 10, and the crankshaft 12 is housed in a crankcase 14 integrated with the cylinder 4. Formed in the cylinder wall is an exhaust port 15 communicating with the ...

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PUM

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Abstract

A motorcycle with two-stroke engine is disclosed. Its crankcase scavenger engine has a piston, a cylinder with exhaust outlet and at least one gas exchanging openning which is communicated with crank case and is opened before said exhaust outlet is closed for scavenging, a gas inlet channel divided into concentrated gas mixture channel and thin gas mixture channel, and a carburetor with a throttle for supplying fuel into said gas inlet channel in a special mode.

Description

technical field [0001] The present invention relates to motorcycles having two-stroke engines, and in particular but not exclusively to such motorcycles having small engines, i.e. engines having a displacement of about 100 cc or less, although the invention is also applicable to motorcycles having engines larger than that engine of motorcycle. The invention relates in particular to motorcycles with crankcase-scavenged engines having piston-controlled ports. Background technique [0002] A crankcase scavenging type two-stroke engine with piston-controlled air ports is an engine whose cylinder includes an air intake port (hole), an exhaust port, and an air exchange port, which are opened and closed by the piston and set to the The exhaust opening is opened before the ventilation opening and closed after the ventilation opening. The gas exchange port is basically one or more gas exchange channels connecting the cylinder and the crankcase and arranged such that the piston cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D11/00F02B25/00
CPCY02T10/146Y02T10/12
Inventor S·B·格洛弗
Owner RICARDO UK LTD
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