A kind of parameter calibration method of fuel injection device

A fuel injection device and parameter calibration technology, which is applied to fuel injection devices, measuring devices, charging systems, etc., can solve problems such as low air utilization rate, reduce smoke generation, improve flow field strength, and promote uniformity. Effect

Active Publication Date: 2022-06-24
WEICHAI POWER CO LTD
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  • Description
  • Claims
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Problems solved by technology

However, since the vortex in the central area of ​​the combustion chamber is relatively small, and the oil beams sprayed by the injector are mainly distributed in the edge area of ​​the combustion chamber, there is no mixing of fuel and gas in the central area, and the air utilization rate is low.

Method used

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  • A kind of parameter calibration method of fuel injection device
  • A kind of parameter calibration method of fuel injection device
  • A kind of parameter calibration method of fuel injection device

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

[0035] In the description of the embodiments of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between the two e...

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Abstract

The invention belongs to the technical field of diesel engines and discloses a fuel injection device and a parameter calibration method of the fuel injection device. The fuel injection device includes a first fuel injector and a second fuel injector, and a first fuel injector and a second fuel injector They are all obliquely arranged on the cylinder head, the first fuel injector includes a first fuel injector, the first fuel injector is located in the combustion chamber, and a plurality of first fuel injection holes are arranged along the circumferential direction of the first fuel injector to facilitate The fuel jet is sprayed to the edge area of ​​the combustion chamber; the second fuel injector includes a second fuel injection nozzle, which is located in the combustion chamber, and the second fuel injection nozzle is provided with a second fuel injection hole and a third injection nozzle. Oil hole, the second oil injection hole faces the central area of ​​the combustion chamber, so that the oil jet sprayed by the second oil injection nozzle points to the central area of ​​the combustion chamber, and the third oil injection hole faces the annular protrusion in the combustion chamber, so that the first The oil spray from the second fuel injection nozzle is directed to the annular protrusion of the combustion chamber.

Description

technical field [0001] The invention relates to the technical field of diesel engines, in particular to a fuel injection device and a parameter calibration method of the fuel injection device. Background technique [0002] A combustion chamber is arranged on the piston, and a fuel injector is arranged vertically on the cylinder head, and the fuel injection nozzle of the fuel injector is located in the central area of ​​the combustion chamber, thereby injecting fuel into the combustion chamber. The gas is taken in through the intake port, and a swirl motion along the cylinder wall is formed in the cylinder body of the cylinder, and the swirl ratio gradually decreases from the edge area of ​​the cylinder body to the center area. During the operation of the piston, the injector starts to inject oil when the piston is close to the top dead center of compression, and an entrainment effect is formed at the end of the oil beam, and the oil beam is mixed with the gas to form a combu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M39/00F02M65/00
CPCF02M39/00F02M65/00
Inventor 庞斌王德成刘晓鑫胡晓艳李万里陈荣祥程旭李志杰
Owner WEICHAI POWER CO LTD
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