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Engine with air supply devices

An engine and compressor technology, applied in engine components, combustion engines, machines/engines, etc., can solve problems such as insufficient transient response, insufficient low-speed torque, affecting acceleration performance, etc., to solve the problem of poor transient response and improve efficiency. Effect

Inactive Publication Date: 2011-05-04
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The use of turbochargers can reduce engine displacement, increase power per liter, and improve economy and emissions. At the same time, it also brings problems such as insufficient low-speed torque and insufficient transient response, which affects acceleration performance.

Method used

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  • Engine with air supply devices

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Embodiment Construction

[0017] figure 1 , 2 A schematic diagram of an engine with an air supply device is shown. The engine mainly includes main components such as crankshaft 1, cylinder 2, piston 3, cylinder head 4, turbocharger 7, reciprocating air compressor 11, high-pressure gas storage tank 9, and a fuel injector 6 is arranged on the cylinder head 4. , an intake valve 5, two discharge valves 8 and an air supply valve 10, the air supply valve 10 is connected with the high-pressure gas storage tank 9

[0018] When the above-mentioned engine was working, the working principles of the turbocharger 7, the intake valve 5 and the exhaust valve 8 were the same as those of the conventional internal combustion engine. The reciprocating compressor 11 compresses the air and inflates it into the high-pressure gas storage tank 9, and then injects supplementary air into the cylinder 2 through the supplementary air valve 10 at a crank angle of 10 degrees before the compression top dead center. These supplemen...

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Abstract

The invention discloses an engine with air supply devices, belonging to the technical field of power machinery. The engine is additionally provided with air supply devices, such as a reciprocating air compressor, a high-pressure air storage tank, an air supply valve and the like. The high-pressure air storage tank supplies air to a cylinder in a jetting way in a compression stroke or an expansion stroke through the air supply valve, and the fixed time of the first air supply is smaller than a crank angle of 140 degrees in front of a compression top dead center. The engine has two working modes of combustion power and air power, and the two working modes can be switched according to the working conditions to form hybrid power drive; and the problem of poor transient response of a turbo supercharged engine is solved, and various problems of power decline, oil consumption increment, discharge deterioration and the like of the engine under plateau conditions due to atmospheric pressure decline and insufficient charge also can be solved. The high-pressure air storage tank can supply a driving force, and the driving force is combined with the combustion power to form an internal combustion air hybrid power system, so that the engine operates in an efficient area to the greatest extent, and the efficiency of the whole power system is improved.

Description

technical field [0001] The invention relates to an engine with an air supply device, which belongs to the technical field of power machinery. Background technique [0002] Modern internal combustion engines widely use turbochargers, especially diesel engines, which are almost "inorganic without supercharging". The use of turbochargers can reduce engine displacement, increase power per liter, and improve economy and emissions. At the same time, it also brings problems such as insufficient low-speed torque and insufficient transient response, which affects acceleration performance. On the other hand, the internal combustion engine's power reduction, fuel consumption increase and emission deterioration under plateau conditions are also problems that need to be solved urgently. Contents of the invention [0003] In order to improve the acceleration performance of a turbocharged internal combustion engine and the power performance, economy and emission performance under platea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M23/00F02B37/00F02B33/02
CPCY02T10/12
Inventor 隆武强冷先银
Owner DALIAN UNIV OF TECH
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