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Water-oil composite rail

A compound rail and water-oil technology, applied in the direction of charging system, adding non-fuel substances to fuel, fuel injection device, etc., can solve the problems of high difficulty and high cost, achieve low manufacturing cost, reduce processing workload and occupy The effect of small air intake space

Active Publication Date: 2022-04-12
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present application provides a water-oil composite rail to solve the problem that it is difficult and costly to arrange the fuel rail assembly and the water rail assembly on the limited gasoline engine intake pipe at the same time

Method used

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  • Water-oil composite rail
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  • Water-oil composite rail

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] figure 1 A water-oil composite rail provided in the embodiment of this application. Such as figure 1 As shown, the water-oil composite rail may include: a water-oil composite rail body 11 , an oil inlet pipe 12 , a water inlet pipe 13 , a control shaft 14 , at least one nozzle installation hole 15 , and a motor 16 .

[0055]A fuel chamber and a water chamber are formed inside the water-oil composite rail body 11. The oil inlet pipe 12 leads to the fuel chamber, and the water inlet pipe 13 leads to the water chamber. The fuel chamber is provided with an oil outlet, and the water chamber is provided with a water outlet.

[0056] The control shaft 14 is arranged inside the water-oil composite rail body 11 , and at least one communication structure is arranged on the control shaft 14 , and the at least one communication structure corresponds to the position of at least one nozzle installation hole 15 .

[0057] When the communication structure is in the first communicatio...

Embodiment 2

[0069] The embodiment of the present application provides a water-oil composite rail. In the water-oil composite rail provided in this embodiment, the motor 16 is arranged at one end of the control shaft 14. When the rotating shaft of the motor 16 rotates, it drives the control shaft 14 to rotate, so that at least one communication structure is in the first communication state and the second communication state. switch between.

[0070] Specifically, for example, when the rotating shaft of the motor 16 rotates clockwise, it drives the control shaft 14 to rotate clockwise, so that the fuel chamber communicates with the corresponding communication structure through the oil outlet hole, the communication structure communicates with the corresponding nozzle mounting hole 15, and the fuel chamber The oil inside flows to the nozzle through the oil outlet hole, the corresponding communication structure, and the corresponding nozzle installation hole 15, so as to realize the oil injec...

Embodiment 3

[0074] The embodiment of the present application provides a water-oil composite rail. The water-oil composite rail provided in this embodiment further provides a specific structure of the communication structure on the basis of the second embodiment of the present application. Combine below Figure 2a with Figure 2b The water-oil composite rail provided in the embodiment of this application is described in detail.

[0075] Figure 2a A cross-sectional view of the water-oil composite rail with the communication structure in the first communication state provided by the embodiment of the present application. Figure 2b A cross-sectional view of the water-oil composite rail with the communication structure in the second communication state provided by the embodiment of the present application. Such as Figure 2a with Figure 2b As shown, the communication structure provided in this embodiment includes a first communication hole 141, a second communication hole 142 and a th...

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Abstract

An embodiment of the present application provides a water-oil composite rail, which includes: a water-oil composite rail body, an oil inlet pipe, a water inlet pipe, a control shaft, at least one nozzle installation hole, and a motor. A fuel chamber and a water chamber are formed inside the water-oil composite rail body, the fuel chamber is provided with an oil outlet, and the water chamber is provided with a water outlet. The control shaft is arranged inside the water-oil composite rail body, and at least one communication structure is arranged on the control shaft, and the at least one communication structure corresponds to the position of the at least one nozzle installation hole one by one. In this embodiment, the motor controls the communication structure to switch between the first communication state and the second communication state, so that the fuel chamber or water chamber is connected to the corresponding nozzle installation hole, and a set of rails is used to realize fuel injection to the engine intake port Or spray water, do not need to set fuel rail and water rail separately, take up little space in the air inlet, and the manufacturing cost is low.

Description

technical field [0001] The embodiments of the present application relate to the technical field of automobile engines, in particular to a water-oil composite rail. Background technique [0002] Automotive engines, such as gasoline engines, are the main power plant in passenger cars. Port fuel injection and gasoline engine direct injection are the mainstream technologies of gasoline engines at present. Port injection injects fuel into the intake port, mixes with air in the intake port, and enters the cylinder to participate in combustion. In-cylinder direct injection injects fuel into the cylinder and directly mixes with air in the cylinder to participate in combustion. Compared with port injection, in-cylinder direct injection can significantly improve engine power output and fuel consumption. However, the particle emission of in-cylinder direct injection gasoline engine is significantly higher than that of port injection under light load conditions. In addition, in-cylin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M25/028F02M55/02
CPCF02M25/028F02M25/0221F02M25/0227F02M55/02
Inventor 李相超张弘尹琪
Owner SAIC MOTOR
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