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Diesel oil engine turbine resonance composite pressurization system

A technology for supercharging systems and diesel engines, applied in mechanical equipment, combustion engines, machines/engines, etc., can solve problems such as hindering the start and acceleration of diesel engines, low input and output power of turbochargers, and lag in response of diesel engines, so as to improve engine speed. The effect of power

Inactive Publication Date: 2006-07-12
SHANGHAI JIAOTONG UNIV
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  • Abstract
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Problems solved by technology

The three patents all have the following disadvantages: when the diesel engine starts or suddenly accelerates, the exhaust gas displacement is small, so that the input and output power of the turbocharger is low, so that the air boost pressure at the outlet of the turbocharger is very low, which is not enough Effectively increase the intake air volume of the diesel engine, which hinders the starting and acceleration of the diesel engine in a short period of time, forming a lag in the response of the turbocharged diesel engine to sudden loading and sudden acceleration

Method used

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  • Diesel oil engine turbine resonance composite pressurization system

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Embodiment Construction

[0008] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0009] Such as figure 1 As shown, the present invention includes a first electromagnetic shut-off valve 1, a second electromagnetic shut-off valve 2, a third electromagnetic shut-off valve 3, a speed sensor 4, a controller 5, a supercharger 6, a turbine 7, an intercooler 8, and a resonant cavity 9. Additional volume cavity 10, diesel engine 11. The intercooler 8 adopts a shell-and-tube heat exchanger, and the resonant cavity 9 and the additional volume cavity 10 are cylindrical or cuboid cavities made of thin metal plates. The supercharger 6 and the turbine 7 are coaxially connected, and the speed sensor 4 adopts a magnetoelectric speed sensor, and the speed sensor 4 is installed near the outer edge of the impeller of the supercharger 6 . The control ends of the first electromagnetic cut-off valve 1 , the second electromagnetic cut-off ...

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Abstract

The supercharging system is composed of electromagnetical stop valve, revolution speed transducer, controller, booster, turbine, inter-cooler, resonant cavity, additional volume cavity, and diesel engine etc. Controlling switch of stop valve speeds up booster of turbine under no load condition so as to run at higher rotating speed in short time period. In early stage of speeding or loading diesel engine, resonance pressure charging instead of turbocharging reaches target of boost. When rotate speed of booster exceeds 60% of rated speed, with signal from transducer being received, the controller sends out signal to change operating conditions of three stop valves, cuts off connection between additional volume cavity and resonant cavity. Air from atmosphere passing through booster, and going to inter-cooler enters to resonant cavity, where resonant boost effect is generated. The invention raises volume power of diesel engine.

Description

technical field [0001] The invention relates to an air intake supercharging system of a diesel engine, in particular to a diesel engine turbo-resonance composite supercharging system combining turbocharging and resonance supercharging, belonging to the technical field of combustion engines. Background technique [0002] At present, the diesel engine supercharging system used is to push the turbocharger to be supercharged by the exhaust gas discharged from the combustion of the diesel engine. In the existing technology, the patent No. 91225356.8 is "a turbocharged diesel engine", and the patent No. Compressed Diesel Engine", and the "V-type Supercharged Diesel Engine Exhaust System" with patent number 02211319.3. The three patents all have the following disadvantages: when the diesel engine starts or suddenly accelerates, the exhaust gas displacement is small, so that the input and output power of the turbocharger is low, so that the air boost pressure at the outlet of the tu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B33/40F02M35/10
Inventor 马捷王锦程
Owner SHANGHAI JIAOTONG UNIV
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