阅读说明：本技术 一种利用增压液体驱动叶轮旋转的装置 (Device for driving impeller to rotate by using pressurized liquid ) 是由 王文杰 陈仰帆 程浩 于 2018-09-01 设计创作，主要内容包括：本发明涉及一种利用增压液体驱动叶轮旋转的装置,属于液体驱动领域,该装置设于汽车离心式分离器的驱动室内,包括增压液体通道和喷头,所述增压液体通道通过与一个或多个喷头依次连接,向叶轮喷射液体。本发明根据离开喷头的液体射流速度取决于液体通道的形状和液体操作压力,在液体操作压力不变的情况下,通过梯度设置喷头,将最终的喷射口径逐级缩小,使喷射口逐渐缩小,达到调节流体射流速度的目的,该喷头结构装配和加工简单,稳定性强,可适应多种驱动环境。(The invention relates to a device for driving a impeller to rotate by using pressurized liquid, which belongs to the field of liquid driving. According to the invention, the liquid jet velocity leaving the spray head depends on the shape of the liquid channel and the liquid operating pressure, under the condition of unchanged liquid operating pressure, the final spray aperture is gradually reduced by arranging the spray head in a gradient manner, so that the spray orifice is gradually reduced, and the purpose of adjusting the fluid jet velocity is achieved.)

1. A device for driving impellers to rotate by using pressurized liquid is arranged in a driving chamber of an automobile centrifugal separator and comprises a pressurized liquid channel and spray heads, wherein one end of the pressurized liquid channel is connected with an external pressurized liquid output end; the sprayer comprises an inlet channel, an outlet channel and a step, wherein one end of the inlet channel is connected with the pressurized liquid channel or the outlet channel of the previous sprayer, the other end of the inlet channel is connected with one end of the outlet channel through the step, and the other end of the outlet channel is connected with the inlet channel of the next sprayer or serves as the output end of the whole device to spray liquid to the impeller; the diameter of the inlet channel of the same spray head is larger than that of the outlet channel, and the diameter of the outlet channel of the adjacent spray head is consistent with that of the inlet channel.

2. The apparatus of claim 1, wherein the step is in a circular transition at the junction with the inlet and outlet channels.

3. An apparatus for driving rotation of an impeller by pressurised liquid as claimed in claim 1, wherein the diameter of the inlet passage is 2 to 5 times the diameter of the outlet passage.

4. An apparatus for driving rotation of an impeller by means of pressurised liquid as claimed in claim 1, wherein the diameter of the outlet passage of the nozzle head nearest the impeller is in the range 2 to 5 mm.

5. An apparatus for driving rotation of an impeller by means of pressurised liquid as claimed in claim 4, wherein the diameter of the outlet passage of the nozzle head nearest the impeller is in the range 2 to 4 mm.

6. An apparatus for driving the impeller to rotate by means of a pressurised liquid as claimed in claim 1, wherein the outlet passage of the nozzle head nearest the impeller is spaced from the impeller by a distance of 0.5 to 5 mm.

7. An apparatus for driving the impeller to rotate by means of a pressurised liquid as claimed in claim 6, wherein the outlet passage of the nozzle nearest the impeller is spaced from the impeller by a distance of 0.5 to 2 mm.

Technical Field

The invention belongs to an impeller driving device, and particularly relates to a device for driving an impeller to rotate by using pressurized liquid.

Background

At present, in the compression ignition working process of a cylinder of a fuel engine, a small part of high-pressure combustible mixed gas and combustion gas in the cylinder enters a crankcase through a gap between the cylinder and a piston to form mixed gas mist containing oil mist, air, water vapor and waste gas.

In order to realize the rotation separation, the centrifugal separator is mainly driven by pressurized lubricating oil from an internal combustion engine to drive a turbine to rotate, and the turbine drives a rotating shaft to realize the rotation separation. The pressurized lubricating oil of the internal combustion engine is sprayed out by a nozzle through a liquid channel, and the pressurized lubricating oil acts on the blades of the turbine to drive the turbine to rotate.

Disclosure of Invention

The invention aims to solve the problems, provides a device for driving an impeller to rotate by using pressurized liquid, and solves the technical problem that the traditional horn-shaped or conical nozzle structure cannot realize the speed adjustment of liquid jet.

The invention realizes the purpose through the following technical scheme:

the invention provides a device for driving an impeller to rotate by using pressurized liquid, which is arranged in a driving chamber of an automobile centrifugal separator and comprises a pressurized liquid channel and nozzles, wherein one end of the pressurized liquid channel is connected with an external pressurized liquid output end, and the other end of the pressurized liquid channel is sequentially connected through one or more nozzles to spray liquid to the impeller; the sprayer comprises an inlet channel, an outlet channel and a step, wherein one end of the inlet channel is connected with the pressurized liquid channel or the outlet channel of the previous sprayer, the other end of the inlet channel is connected with one end of the outlet channel through the step, and the other end of the outlet channel is connected with the inlet channel of the next sprayer or serves as the output end of the whole device to spray liquid to the impeller; the diameter of the inlet channel of the same spray head is larger than that of the outlet channel, and the diameter of the outlet channel of the adjacent spray head is consistent with that of the inlet channel.

As a further optimization scheme of the invention, the joints of the steps, the inlet channel and the outlet channel are all in circular arc transition.

As a further preferred development of the invention, the diameter of the inlet channel is 2 to 5 times the diameter of the outlet channel.

As a further preferred embodiment of the invention, the diameter of the outlet channel of the nozzle closest to the impeller is 2 to 5mm, more preferably 2 to 4 mm.

As a further optimization scheme of the invention, the distance between the outlet channel of the spray head closest to the impeller and the impeller is 0.5-5mm, and more preferably 0.5-2 mm.

The invention has the beneficial effects that: the invention provides a device for driving an impeller to rotate by using pressurized liquid under the condition that the liquid operating pressure is not changed according to the fact that the liquid jet speed leaving a spray head depends on the shape of a liquid channel and the liquid operating pressure.

Drawings

FIG. 1 is a schematic view of a showerhead;

FIG. 2 is a schematic diagram of the structure of the apparatus;

fig. 3 is a diagram of the operating state of the device.

In the figure: 1 inlet channel, 2 outlet channels, 3 steps, 4 pressurized liquid channels, 10 drive chambers, 20 impellers.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.