Air-storage engine, pressurizing system and method thereof, and emission reducing system and method thereof

An engine and gas storage technology, applied in engine components, engine control, combustion engines, etc., can solve problems such as increased discharge pressure, increased cost, and prolonged catalyst light-off time.

Active Publication Date: 2010-03-03
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the acceleration of the vehicle is to be greatly improved without changing the displacement, it is necessary to adopt a supercharging method and install a supercharger, which will increase the cost, and at the same time lengthen the light-off time of the catalyst and increase the discharge pressure.

Method used

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  • Air-storage engine, pressurizing system and method thereof, and emission reducing system and method thereof
  • Air-storage engine, pressurizing system and method thereof, and emission reducing system and method thereof

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Embodiment Construction

[0026] Such as figure 1 As shown, the air storage engine of the present invention has a reciprocating engine body composed of a connecting rod 1, a piston 2-1, and a cylinder 2-2, and also has an exhaust valve 7, an intake valve 6, and a pump valve 3. figure 1 Only a single-cylinder structure is shown in , but the structure of multiple cylinders can be understood from this, that is, if the reciprocating engine body has multiple cylinders, their pump valves 3 share the first pipeline 100 . The pump valve 3 is equipped with a solenoid valve 5, and the solenoid valve 5 is electrically connected with the engine management system.

[0027] Such as figure 2 As shown, the first pipeline 100 connects the pump valve 3 and the gas storage device 80 together. The second pipeline 200 connects the intake valve 6 and the gas storage device 80 together. The third pipeline 300 connects the exhaust valve 7 and the gas storage device 80 together.

[0028] A one-way valve 12 is provided in ...

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PUM

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Abstract

The invention relates to an air-storage engine, a pressurizing system and a method thereof, and an emission reducing system and a method thereof. The compressed air of the engine in the vehicle braking stage is recycled and stored in an air storage device; when the engine is cold-started, a secondary air source is provided by the air storage device to meet the requirement of low emission of vehicles; and when the vehicle works in the full throttle state, the air storage device is used for providing a high-pressure air source into the intake pipe of the engine to realize the transient pressurization and meet the power performance requirement of the vehicles. The emission reducing technique and the pressurizing technique realize a virtuous cycle of recycle, emission reduction, pressurizationand the like.

Description

technical field [0001] The invention relates to an air storage type engine, a supercharging system and its method, and an emission reduction system and its method. Background technique [0002] If the existing engine uses a secondary air injection device to reduce emissions, a secondary air injection pump must be installed. Whether it is a mechanical or electric drive pump, it will increase the load on the engine. If the acceleration of the vehicle is to be greatly improved without changing the displacement, it is necessary to adopt a supercharging method and install a supercharger, which will increase the cost, and at the same time lengthen the light-off time of the catalyst and increase the discharge pressure. [0003] During the braking process of the vehicle, the engine oil is cut off. At this time, the vehicle reverses the engine through the gearbox. At this time, the engine is equivalent to a compressor working, which has the effect of exhaust braking, and the compress...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D13/04F02D23/00F02D9/08F01N3/30
CPCY02T10/144Y02A50/20Y02T10/12
Inventor 薛小兵
Owner SAIC MOTOR
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