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Oil injection method of swirling combustion chamber, swirling combustion chamber, vehicle and storage medium

A combustion chamber and plume technology, applied in combustion engines, fuel injection control, internal combustion piston engines, etc., can solve the problem of insufficient fuel combustion, and achieve the effect of accelerating the combustion speed in the cylinder and improving fuel consumption.

Active Publication Date: 2022-03-25
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a fuel injection method for a plume combustion chamber, a plume combustion chamber, a vehicle and a storage medium to solve the problem of insufficient combustion of fuel in the combustion chamber

Method used

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  • Oil injection method of swirling combustion chamber, swirling combustion chamber, vehicle and storage medium
  • Oil injection method of swirling combustion chamber, swirling combustion chamber, vehicle and storage medium
  • Oil injection method of swirling combustion chamber, swirling combustion chamber, vehicle and storage medium

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Embodiment 1

[0036] Figure 1A Embodiment 1 of the present invention provides a flow chart of a fuel injection method for a plume combustion chamber. This embodiment is applicable to judging single and double main injection switching fuel injection according to the fuel injection duration to ensure sufficient fuel atomization. The fuel injection method of the plume combustion chamber is applied to the plume combustion chamber described in any embodiment of the present invention, and the axial cross-sectional profile of the plume combustion chamber is font, the plume combustion chamber is used with a fuel injector with double-layer injection holes, the fuel injector has a first fuel injection port and a second fuel injection port, and the plume combustion chamber can be configured in a diesel vehicle . Such as Figure 1A As shown, the fuel injection method of the plume combustor includes:

[0037] S110. Obtain the target fuel injection duration of the plume combustion chamber, the first f...

Embodiment 2

[0060] figure 2 It is a flow chart of an oil injection method for a plume combustion chamber provided by Embodiment 2 of the present invention. This embodiment provides a preferred embodiment on the basis of the above embodiments. Such as figure 2 As shown, the fuel injection method of the plume combustor includes:

[0061] S210, start.

[0062] In this step, to start the engine, the engine is ignited.

[0063] S220. Obtain the target fuel injection duration of the plume combustion chamber, the first fuel injection start point, the first fuel injection end point, the current fuel injection start point, and the current fuel injection end point of the first fuel injection port.

[0064] In an embodiment provided by the present invention, when the engine is at the current operating point, the rail pressure, cycle fuel injection volume, and injector flow of the engine are obtained, and based on the Bernoulli equation, according to the rail pressure, the The cycle fuel inject...

Embodiment 3

[0078] image 3 A schematic axial cross-sectional view of a plume combustion chamber 100 is provided for Embodiment 3 of the present invention, Figure 4 A schematic diagram of the fuel injection direction of the plume combustion chamber 100 is provided for Embodiment 3 of the present invention. This embodiment can be applied to the situation that the atomized combustion of fuel is promoted by changing the propagating direction of the oil beam, such as image 3 with Figure 4 As shown, the axial cross-sectional profile of the plume combustion chamber 100 is font, the plume combustion chamber 100 is used with a fuel injector, the fuel injector has a first fuel injection port and a second fuel injection port, and the inner wall of the plume combustion chamber 100 includes a center boss at the center Mesa 300, and the arc-shaped surface connected to the periphery of the central boss mesa 300; the first oil beam ejected from the first fuel injection port travels along the inner ...

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Abstract

The invention discloses an oil injection method of a swirling combustion chamber, the swirling combustion chamber, a vehicle and a storage medium. The method comprises the following steps: acquiring a target oil injection duration of a swirling combustion chamber, a first oil injection starting point and a first oil injection ending point of a first oil injection port, a current oil injection starting point and a current oil injection ending point; determining a first oil injection duration of the first oil injection port, and determining a current oil injection duration of the first oil injection port; and according to the target oil injection duration, the first oil injection duration and the current oil injection duration, the first target oil injection duration of the first oil injection port and the second target oil injection duration of the second oil injection port are determined correspondingly. The problems that the shape of an existing combustion chamber is only designed for one-time main injection and cannot meet the requirement of two-time main injection, and an existing combustion system does not use the scheme that impact of two oil beams is used for promoting atomization combustion of fuel oil are solved, switching of single main injection and double main injection is judged according to the oil injection duration, and therefore the in-cylinder combustion speed is increased, and the fuel oil consumption of a diesel engine is reduced.

Description

technical field [0001] The invention relates to the technical field of diesel engine combustion systems, in particular to a fuel injection method for a plume combustion chamber, a plume combustion chamber, a vehicle and a storage medium. Background technique [0002] With the continuous rise of fuel prices, in the competition of vehicle power systems, people began to pay more and more attention to the issue of engine energy saving and consumption reduction. Currently, diesel engines are widely used in automobiles and off-road products, and will continue to play a role for quite a long time. [0003] The existing diesel engine electronic control system is more and more used, and the atomization quality of the fuel injector has been significantly improved, but the existing diesel engine combustion chamber cannot match the injection pressure. The study found that a reasonable spray impact can improve the spatial distribution of the spray And atomization effect, improve air uti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/40F02D41/38F02B23/10F02F3/26
CPCF02D41/40F02D41/402F02D41/3809F02B23/10F02F3/26F02D2041/389Y02T10/12
Inventor 王德成李志杰孙振宇张扬侯建军孙楠楠
Owner WEICHAI POWER CO LTD