Internal combustion engine

A technology for internal combustion engines and engines, which is applied in the direction of mechanical equipment, engine components, machines/engines, etc., can solve the problems of unsuitable small volume, complicated rotating cylinder valves, difficult cost advantages, etc., achieve flexible design, improve sealing performance and heat performance, improved cooling

Active Publication Date: 2012-01-18
RCV ENGINES
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  • 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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  • Internal combustion engine
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Examples

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Embodiment Construction

[0056] Referring to the attached drawings, figure 1 , 2 and 3 shows a single-cylinder air-cooled engine, Figure 5 and 6 A horizontally opposed two-cylinder engine is shown. Each cylinder 2 has a piston 1 ( Figure 5 and 6 ), the piston 1 is connected to the crankshaft 3 in a conventional manner for reciprocating movement within the cylinder 2. Especially as figure 2 As shown, the upper portion of the cylinder 2 is closed to form the combustion chamber 4 . like 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 , as shown in cross section of . In this embodiment, the valve is rotatable about the axis 2a of the cylinder 2 .

[0057] 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 hole in a valve sleeve 8 in which the The cylindrical portion 6 is a tight s...

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Abstract

A rotary valve internal combustion engine has a piston connected to a crankshaft (3) and reciprocatable in a cylinder (2), a combustion chamber (4) being defined in part by the piston, and a rotary valve (5) rotatable in a valve housing (8) fixed relative to the cylinder (2), the rotary valve (5) having a valve body containing a volume (9) defining, in part, the combustion chamber (4) and further having a port (12) giving, during rotation of the valve (5), fluid communication successively to and from the combustion chamber (4) via inlet and exhaust ports (13, 14).

Description

technical field [0001] The present 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 rotary cylinder that includes a valve port in communication with a combustion chamber that is rotatable about the longitudinal axis of the cylinder within a cylindrical bore in a valve housing , the valve sleeve has intake and exhaust ports adapted to be sequentially aligned with the valve ports 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, for example, from 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, inside which a reciprocating piston is arranged. The reciprocating piston is driven by the crankshaft. The crankshaft is conn...

Claims

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Application Information

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Patent Type & Authority Applications(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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