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Device and method for quick gas supply when diesel engine accelerating

A diesel engine, fast technology, applied in the direction of charging system, electrical control, mechanical equipment, etc., can solve the problems of diesel quality difficult to meet, high manufacturing cost, technical difficulty, etc., to improve transient emission quality, facilitate modification, reduce cost effect

Inactive Publication Date: 2005-08-17
常州天大龙成节能环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is technically difficult, and it is currently difficult to achieve in China
(2) High-quality diesel with ultra-low sulfur content is used, but the quality of domestically supplied diesel is difficult to meet the standard
This method is very effective in improving the acceleration performance of diesel engines, but the system is very complicated and the manufacturing cost is high, so it is only used in some advanced or special-purpose vehicles at present
There is no good solution in the country

Method used

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  • Device and method for quick gas supply when diesel engine accelerating
  • Device and method for quick gas supply when diesel engine accelerating
  • Device and method for quick gas supply when diesel engine accelerating

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Embodiment

[0027] 1. Carry out such as on the direct injection supercharged engine figure 2 Intake manifold arrangement shown, i.e. the electric compressor is installed between the original diesel engine turbocharger and the air filter. The electric compressor is driven by a GWD1500 high-speed brushless motor with a speed of up to 24000r / min. Under a certain constant torque, the accelerator actuator is driven by the stepper motor at a constant speed to pull the accelerator line to move in the direction of refueling, so that the speed increases, and changing the stepping interval of the stepper motor can change the speed change rate, and install an acceleration sensor on the accelerator pedal Detect acceleration. The electronic control unit is mainly composed of MS-51 single-chip microcomputer, which can collect signals such as engine speed, torque, acceleration, etc., and judge the working condition of the engine to send the start signal of the electric compressor. The working time of...

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Abstract

This invention discloses a diesel engine rapid air refreshing device and method, which belongs to the technique of speeding smoke exhausting. The said device comprises the following: electric air compressor located on the air refreshing tube parallel with the air-in tube; serial device formed with waste gas turbo pressure increasing device; or parallel device formed with waste gas pressure increasing device. The said method comprises the following steps: the diesel engine accelerator pedal responds the sensor and receives the speeding signals; the electric control unit starts electric air compressor to process rapid air refreshing alone or together with waste turbo booster by series or parallel connection.

Description

technical field [0001] The invention relates to a device and a method for realizing rapid air supplementation in the acceleration process of a diesel engine, and belongs to the technology for reducing smoke emission in the acceleration process of a diesel engine. Background technique [0002] Supercharging technology is an important measure to improve the performance of diesel engines. More and more diesel engines adopt supercharging technology, which can improve fuel economy on the one hand and reduce exhaust pollution on the other. However, when the supercharged diesel engine is accelerating, the response speed of the compressor intake of the supercharger is not synchronized with the fuel supply speed of the fuel injection pump, resulting in serious smoke during the acceleration process. This is especially the case for diesel engines used in buses that require frequent starts and accelerations. Accelerated smoke is not only a serious pollution to the ambient air quality, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/10F02D41/26F02M23/06
CPCY02T10/144Y02T10/12
Inventor 姚春德周红秀李云强郑贵忠
Owner 常州天大龙成节能环保科技有限公司
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