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Consecutive pressure boost and air inlet controllable whirling currents combine system of high supercharged diesel

A technology of successive supercharging and combined systems, applied in mechanical equipment, engine components, combustion engines, etc., can solve the problem of not finding diesel engines, etc.

Inactive Publication Date: 2010-06-02
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, after retrieval and novelty checks, no diesel engine and related reports using both the sequential supercharging system and the intake control swirl system have been found at home and abroad.

Method used

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  • Consecutive pressure boost and air inlet controllable whirling currents combine system of high supercharged diesel
  • Consecutive pressure boost and air inlet controllable whirling currents combine system of high supercharged diesel
  • Consecutive pressure boost and air inlet controllable whirling currents combine system of high supercharged diesel

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Embodiment Construction

[0016] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0017] to combine figure 1 and figure 2 , the system of the present invention is made up of diesel engine 17, turbocharger 1 and 12, air valve 2, gas valve 11, bypass valve 13, exhaust communication branch pipe 3, intake communication branch pipe 14 and other connecting pipelines, wherein diesel engine The cylinder head 5 has a straight intake port 7 and a spiral intake port 8 to form a double intake port, and an intake baffle valve 6 is installed in the straight intake port, and the cylinder head has an intake valve 9 and an exhaust valve. The door 10 is connected to the exhaust passage 16 with the exhaust valve. There are at least two turbochargers, divided into basic supercharger 12 and controlled supercharger 1; the butterfly valve installed at the compressor outlet of the supercharger is air valve 2, and the butterfly valve installed at the turbine inlet o...

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Abstract

The present invention provides a successive pressurizing and air-inlet controllable turbine joint system of high-pressurizing diesel engine, consisting of a successive pressurizing system and an air-inlet controllable turbine system. The successive pressurizing system consists of more than two turbine pressurizing units, an air-inlet and gas control valve of the pressurizing unit, an air inlet communicating pipe, an air-outlet communicating pipe and an inlet and outlet bypass valve. The air-inlet controllable turbine system consists of a straight air inlet pipe, a spiral air inlet pipe and a baffle valve arranged in the straight air inlet pipe. The successive pressurizing system and the air-inlet controllable turbine system play a joint function. The present invention with both functions of the successive pressurizing system and the air-inlet controllable turbine system can increase the low-load inflow of the diesel engine and the quality of the combustible mixed gas, and improve the low-load performance of the high-pressurizing diesel engine to the maximum extent.

Description

(1) Technical field [0001] The invention relates to an intake and exhaust system in the technical field of internal combustion engines, in particular to a combined system of sequential supercharging and intake controllable swirl flow for high-supercharged diesel engines. (2) Background technology [0002] One of the most effective means to increase the power per liter of a diesel engine is to increase the supercharging degree. However, as the boost ratio increases, the matching contradiction between the supercharger and the diesel engine becomes more prominent. The turbocharger cannot meet the needs of the diesel engine in all working conditions, resulting in insufficient partial load torque and increased heat load. In order to solve the problem of poor performance of diesel engines at low loads, experts in the field of internal combustion engines at home and abroad have been making unremitting efforts to solve the problems of high-pressure diesel engines with low loads. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D17/16F02B37/24
CPCY02T10/144Y02T10/12
Inventor 王贺春王银燕张鹏奇冯永明杨传雷
Owner HARBIN ENG UNIV
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