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internal combustion engine

An internal combustion engine and combustion chamber technology, applied in mechanical equipment, engine components, machines/engines, etc., can solve the problems of inappropriate small volume, complicated rotary cylinder valves, difficult cost advantages, etc., achieve flexible design, improve sealing performance and Thermal performance, improved cooling effect

Active Publication Date: 2014-10-01
RCV ENGINES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Direct oil cooling of rotary cylinders has been used successfully on larger designs, but is complex, bulky, and not suitable for smaller volumes
[0011] Third, the cost of RCV components
Although the total number of components of an RCV is much smaller than that of a conventional poppet valve, rotary cylinder valves are large and relatively complex components and must be fitted with a large lower ball race
These two considerations mean that it is difficult to really gain a cost advantage over traditional designs

Method used

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Examples

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Embodiment Construction

[0045] With reference to the accompanying drawings, figure 1 , 2 and 3 show a single-cylinder air-cooled engine, Figure 5 and 6 A boxer twin cylinder engine is shown. Each cylinder 2 has a piston 1 ( Figure 5 and 6 ), the piston 1 is conventionally connected to the crankshaft 3 for reciprocating movement within the cylinder 2. Especially as figure 2 As shown, the upper part of the cylinder 2 is closed to form a combustion chamber 4 . Such as figure 2 The rotary valve 5 controls the flow of intake air into the combustion chamber 4 and the flow of exhaust air out of the combustion chamber 4 , shown in cross-section. In this embodiment, the valve is rotatable about the axis 2 a of the cylinder 2 .

[0046] The rotary valve comprises a first cylindrical part 6 mounted on a ball bearing 7 on the side of the valve 5 remote from the combustion chamber 4 for rotation in a bore in a valve housing 8 in which the valve 5 The cylindrical part 6 is a tight sliding fit with on...

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Abstract

A rotary valve internal combustion engine has a piston connected to a crankshaft (3) and reciprocating in a cylinder (2), a combustion chamber (4) partially defined by the piston, and a valve sleeve fixable relative to the cylinder (2) A rotary valve (5) rotating in (8), the rotary valve (5) having a valve body containing a volume (9) that partially defines the combustion chamber (4) and also having an opening (12) at The valve (5) provides successive fluid communication to and from the combustion chamber (4) through the intake and exhaust ports (13, 14) during rotation.

Description

technical field [0001] The invention relates to an internal combustion engine. Background technique [0002] One form of internal combustion engine is a rotary cylinder valve (RCV) engine having a rotating cylinder that includes a valve port in communication with the combustion chamber, the cylinder being rotatable about the cylinder's longitudinal axis within a cylindrical bore in a valve housing , the valve sleeve has an intake port and an exhaust port adapted to be sequentially aligned with said valve port during rotation of the cylinder within the valve sleeve to enable fluid flow into and out of the combustion chamber, respectively. Such rotary cylinder valve engines are known from eg PCT / GB01 / 04304 and PCT / GB2003 / 002136. Such an engine has a rotatable cylinder closed at one end to partially define a combustion chamber and open at the other end, within which a reciprocating piston is disposed. The reciprocating piston is driven by the crankshaft. The crankshaft is co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L7/02
CPCF01L7/028F01L7/00F01L7/021F01L7/023F01L7/08F01L7/18F01L5/04F01L7/02
Inventor K·劳斯
Owner RCV ENGINES
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