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Device for adjusting combustion volume and combustion compression of in piston engines

A technology for adjusting pistons and engines, applied in engine components, engine control, machine/engine, etc., can solve problems such as different cylinders, separate control, etc.

Inactive Publication Date: 2008-06-11
贝特·荣松 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the German patent DE4211589 does not propose how to achieve individual control of the compression ratio of different cylinders, and the optimization of the operation of different cylinders

Method used

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  • Device for adjusting combustion volume and combustion compression of in piston engines
  • Device for adjusting combustion volume and combustion compression of in piston engines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] FIG. 1 shows an embodiment of an eddy current sensor 1 according to the invention. Sensor 1 comprises two coils 2 and 3 connected like inside a Wheatstone bridge. An oscillator circuit 4 supplies these coils 2 and 3 with a high frequency alternating current of 50 kHz to 10 MHz, preferably 125 kHz.

[0021] The position of the lower coil 2 is close to the inner surface of the engine cylinder (not shown), constituting the measuring coil. The upper coil 3 is located a little further from the above-mentioned inner surface and constitutes a reference coil for the purpose of displaying temperature differences and fluctuations within the sensor. Since the measured values ​​of the measuring coil 2 vary with temperature, the device according to the invention can also comprise a set of temperature sensors. As an alternative or in addition, the device may provide water to cool the device of the sensor 1 in order to obtain a more constant temperature.

[0022] Sensor 1 generates...

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PUM

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Abstract

The invention discloses a device used to adjust the combustion chamber space and the combustion chamber inner compression of a piston engine, and the device comprises equipment (20; 24) which enables cylinder parts (18) of the engine to move relatively to a crankcase part thereof (19), thereby the cylinder parts (18) move relatively to the crankcase part (19) through a lateral sliding motion. The device comprises at least two cylinders, and also comprises equipment (29, 28) which is used to individually move the cylinder part (18) for each cylinder; the equipment (29, 28) used to individually move the cylinder part (18) for each cylinder comprise detachable distance elements which can individually preset the displacement of each cylinder part (18) between the cylinder parts (18) and the equipment (20, 24).

Description

[0001] This application is a divisional application of the Chinese patent application with the application number 008171831, the filing date being December 14, 2000, and the title of the invention being "Method and device for measuring and adjusting top dead center position of piston engine". technical field [0002] The invention relates to a device for adjusting the volume of the combustion chamber and the compression in the combustion chamber of a piston engine, comprising a device for moving the cylinder part of the engine relative to its crankcase part, so that the cylinder part moves relative to the crankcase through a lateral sliding movement Parts move. Background technique [0003] Head clearance is one of the most important factors in engine design. The smaller the head clearance, the lower the fuel consumption and the so-called cab emissions. Therefore, it is best to be able to measure and control the distance between the piston top or the piston head and the cyl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D15/04G01B7/14G01B7/00F02B75/04F02B77/08F02D35/00F02D45/00F02F3/00F02F7/00
CPCF02B77/08F02F7/0019G01B7/14
Inventor 贝特·荣松约纳斯·荣松
Owner 贝特·荣松