Atkinson cycle engine assembly with cooled EGR

An engine assembly, Atkinson's technology, applied to engine components, engine cooling, machine/engine, etc., can solve problems such as torque drop, achieve the effects of reducing lateral force, reducing fuel consumption, and optimizing waterway structure

Active Publication Date: 2022-05-10
HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, at present, under the same displacement, the torque is reduced by about 10% with the use of deep Atkinson technology

Method used

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  • Atkinson cycle engine assembly with cooled EGR
  • Atkinson cycle engine assembly with cooled EGR
  • Atkinson cycle engine assembly with cooled EGR

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Embodiment Construction

[0030] In order to better understand the purpose, structure and function of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] Engine schematics, such as figure 1 shown.

[0032] Each engine cylinder is equipped with a crank connecting rod mechanism, a gas distribution system, an ignition system, an intake system and an exhaust system;

[0033] Such as image 3 As shown, the crank-link mechanism includes crankshaft 53, connecting rod 52, piston 51 and other parts, which are arranged eccentrically. The crankshaft offset technology means that the center of the crankshaft does not intersect with the centerline of the piston, that is, the eccentric distance H between the axis of the piston 51 and the axis of the crankshaft 53 , H≈9~11mm.

[0034] The working cycle of the engine is four-stroke, which includes intake stroke, compression stroke, power stroke and exhaust stroke.

[0035] Cr...

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PUM

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Abstract

The invention discloses an Atkinson cycle engine assembly with a cooling EGR (Exhaust Gas Recirculation) function, and belongs to the technical field of ignition type engines with distribution mechanisms. A crank connecting rod mechanism, an ignition system, a gas distribution system, a gas inlet system and a gas exhaust system are mounted in each engine cylinder; the air distribution system adopts the Atkinson cycle technology, and the eccentric distance H between the piston axis of the crank connecting rod mechanism and the crankshaft axis is approximately equal to 9-11 mm. The low fuel consumption rate and the high engine power torque are achieved in the mode that cooling EGR and Atkinson circulation are combined, and the engine torque can be increased by 30% to the maximum. The waste gas temperature is reduced through the cooler, the waste gas amount and the EGR rate can be effectively increased, and when low-temperature waste gas participates in in-cylinder combustion, the contribution to oil consumption reduction and emission is larger. The crankshaft bias technology is adopted, the Atkinson ratio is increased under the condition that the gas distribution phase is not changed, and the low fuel consumption rate is achieved as well.

Description

technical field [0001] The invention belongs to the technical field of an ignition engine with a distribution mechanism, and in particular relates to an Atkinson cycle engine assembly with a cooling EGR. Background technique [0002] With the improvement of people's living standards, the rapid development of the automobile and internal combustion engine industries, the awareness of environmental protection has become stronger, and fuel consumption and emission regulations have been continuously upgraded. Therefore, energy saving and emission reduction have become the two major themes of the development of the internal combustion engine industry. From the source to the user, the entire industrial chain must reduce pollution and protect the environment. [0003] In terms of energy saving, domestic and foreign OEMs have improved energy efficiency through the use of Otto cycle, Atkinson cycle, Miller cycle technologies, electronic supercharger technology, and high-pressure exhau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P3/02F01P7/16F02B75/02F02B75/32F02M26/22
CPCF02B75/02F02M26/22F02B75/32F01P3/02F01P7/16Y02T10/12
Inventor 潘圣临王建武曹权佐施玉春孙国媛王宏敏于晓彤刘锦杰桂智勇马南刘顺平刘宏华
Owner HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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