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Air intake treatment device of diesel engine, diesel engine system and control method

A diesel engine and processing device technology, which is applied in the direction of combustion engines, machines/engines, mechanical equipment, etc., can solve the problems of limited diesel mixing effect, achieve the effects of easy design and implementation, increase fuel injection pressure, and improve fuel economy

Active Publication Date: 2017-12-08
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of reverse flow injection, fuel atomization is better, and the center temperature of the vortex combustion chamber is higher, so setting the pre-combustion chamber is helpful to the cold start of the diesel engine, but this method has a limited effect on the improvement of the diesel mixing effect

Method used

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  • Air intake treatment device of diesel engine, diesel engine system and control method
  • Air intake treatment device of diesel engine, diesel engine system and control method
  • Air intake treatment device of diesel engine, diesel engine system and control method

Examples

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Embodiment 1

[0040] The invention relates to an intake air treatment device of a diesel engine, which is arranged upstream of the intake air of the diesel engine to form air supply to the diesel engine. The cylinder block of the oil injector is formed with a first intake port and a first exhaust port communicated with the intake port of the diesel engine. The intake air treatment device further includes a compression device arranged in cooperation with the cylinder block, and the compression device is configured when the first intake port on the cylinder block is opened and the first exhaust port is closed, and the fuel injector injects fuel into the cavity , the air is sucked into the cavity, so that the air and fuel oil form an oil-gas mixture; and when the first air inlet is closed and the first exhaust port is opened, the compression device compresses the oil-air mixture in the cavity, And before the gas mixture is ignited, it is delivered to the air inlet from the first exhaust port. ...

Embodiment 2

[0050] The present embodiment relates to a diesel engine system, in which the intake air processing device of the diesel engine as described in the first embodiment is provided upstream of the intake air of the engine. Specifically, in this embodiment, as Figure 4 As shown in the figure, the pre-mixing cylinder 1 is to supply air to two working cylinder blocks, and for the convenience of description, the two working cylinder blocks are called the first working cylinder 61 and the second working cylinder 62 respectively. The volume of the premix cylinder 1 is larger than the volumes of the first working cylinder 61 and the second working cylinder 62 .

[0051] In this embodiment, two first intake ports and two first exhaust ports are provided on the premixing cylinder 1 , and similarly, the first working cylinder 61 is also provided with two first working cylinder intakes respectively. The second working cylinder 62 is also provided with two second working cylinder intake por...

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Abstract

The invention discloses an air intake treatment device of a diesel engine, a diesel engine system and a control method. The air intake treatment device of the diesel engine is arranged at the air intake upstream of the diesel engine to feed air for the diesel engine and comprises a cylinder body and a compression device matched with the cylinder body, wherein a cavity is formed in the cylinder body; the cylinder body is provided with an oil sprayer for spraying oil into the cavity; and a first air inlet and a first air discharging hoe communicating with the air inlet of the diesel engine are formed in the cylinder body. According to the air intake treatment device of the diesel engine, the cylinder body is arranged at the air intake upstream of the diesel engine, air is fed in and diesel oil is sprayed in the cylinder body, air and diesel oil are compressed by the compression device, are then fed in the air inlet of the engine and are premixed in the cylinder body to increase the mixing angle of diesel oil; and in addition, compression of the compression device enables the diesel oil mixing gas to have certain temperature, so that the diesel oil and the air are fully mixed to improve the mixing effect of diesel oil.

Description

technical field [0001] The invention relates to the technical field of air intake control of diesel engines, in particular to an air intake processing device of a diesel engine. The invention also relates to a diesel engine system provided with the intake air treatment device of the diesel engine, and a control method of the diesel engine system. Background technique [0002] Diesel engine is a compression ignition engine, which is more and more favored by automobile manufacturers due to its low fuel consumption. However, diesel engine is also difficult to form a fully mixed diesel-air mixture due to poor low-temperature volatility of diesel during use. Insufficient engine startability at low temperature. At the same time, due to the low volatility of diesel, the diesel engine is prone to generate black smoke when accelerating, which will also cause the emission to fail to meet the national standard and pollute the environment. The main reason for the above problems of die...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B1/00
CPCF02B1/00
Inventor 孙硕乔建虎张凡石磊孙俭
Owner GREAT WALL MOTOR CO LTD
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