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Internal combustion engine with variable compression ratio

A technology of internal combustion engine and compression ratio, applied in the direction of variable capacity engine, mechanical equipment, engine control, etc., can solve the problems of insufficient robustness, extra load, complex structure and operability of intake valve and exhaust valve, and achieve Large engine power, uniform transmission effect

Inactive Publication Date: 2009-04-29
VALCON MOTOR COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These disadvantages are first of all that the mechanism for changing the compression ratio is not robust enough (robust)
Other problems are: the position of the spark plug, and the complex structure and operability of the intake and exhaust valves
In addition, the connection between the piston and the wobble plate creates undesired additional loads on the most loaded engine components

Method used

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  • Internal combustion engine with variable compression ratio
  • Internal combustion engine with variable compression ratio
  • Internal combustion engine with variable compression ratio

Examples

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Comparison scheme
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Embodiment Construction

[0044] An internal combustion engine 1 ( FIG. 1 ) comprises a plurality (two in the illustrated example) of cylinders 2 within each cylinder 2 or within which two pistons 3 reciprocate in opposite directions to each other ( FIG. 2 ). A combustion chamber 35 is formed between two pistons 3 in each cylinder, while a space 102 behind each piston 3 is used as a scavenging chamber (discussed later). The internal combustion engine 1 illustrated in the illustrated example is a two-stroke engine, so that the piston 3 forms a scavenging pump.

[0045] Each piston 3 is connected to a corresponding arm 5 via a piston rod 4 . The arms 5 of the individual pistons 3 are fixed on a common bearing ring 6 which defines an opening 7 . The two bearing rings 6 on both sides of the engine 1 are connected by a main shaft 8 , which is rotatably supported by two ball bearings 76 in bearings in the opening 7 . The spindle 8 and the centerline C of each opening 7 L An angle α is included and for thi...

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Abstract

The invention concerns a combustion engine, comprising at least one cylinder with in it two oppositely directed reciprocating pistons, which are each connected via a piston rod with a corresponding arm, whereby each arm shows an opening in which a main shaft that connects the two arms is rotatably supported in bearings, which main shaft includes an angle with a centre line of each opening, and means for varying the compression ratio in the cylinder, which compression ratio variation means comprise a division in the main shaft, as well as drive means in order to move the parts formed by it of the main shaft apart from each other. The combustion engine can be provided with at least one spark plug, which protrudes through the bottom of one of the pistons. The combustion engine can also be provided with means for the metering to the cylinder of a supply of air or a fuel / air mixture, which supply means comprise a rotatable metering device along at least one supply opening, connected with the main shaft, which shows at least one metering opening, which can be brought into governing with the supply opening via rotation of the metering device.

Description

technical field [0001] The present invention relates to an internal combustion engine capable of varying the compression ratio. More particularly, the present invention relates to an internal combustion engine comprising: at least one cylinder, in which there are two pistons moving in reverse reciprocating manner, the pistons are respectively connected to corresponding arms via piston rods, each of which Each of the arms has an opening, the main shaft connecting the two arms is rotatably supported in the bearing in the opening, and the main shaft forms an angle with the center line of each opening; and a shaft for changing the compression ratio in the cylinder device. Such an engine is known, for example, from US patent specification No. 4,622,927. Background technique [0002] The compression ratio of an internal combustion engine is determined by dividing the cylinder volume by the compression chamber volume when the piston is at top dead center. In other words, the com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B75/26F02B75/28F02D15/02F01B3/00F01B3/10
CPCF01B3/0094F01B3/002F01B3/0023F01B3/102F01B3/101F01B3/0005F02B75/26F01B3/0017F01B3/0029F02B75/282F02D15/02F02B75/24F02B75/28
Inventor 雅各布·阿诺尔德·亨德里克·弗雷德里克·雅克特
Owner VALCON MOTOR COMPANY
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