CN201254292Y

CN201254292Y - Blade for acquiring fluid differential pressure propelling force

Info

Publication number: CN201254292Y
Application number: CNU2008200647308U
Authority: CN
Inventors: 张鞍平
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-15
Filing date: 2008-08-15
Publication date: 2009-06-10
Anticipated expiration: 2018-08-15

Abstract

The utility model belongs to a vane for obtaining fluid pressure difference propulsion. The vane is characterized in that at least two vanes which are arranged in the form of steps and are laminated form a vane unit; the vanes of the vane unit are not on the same motion plane; the fluid on incident flow surfaces of upper-layer vanes flows through non-incident flow surfaces of lower-layer vanes by distant jet flow to the lower-layer vanes, reduces pressure intensity of the non-incident flow surfaces of the lower-layer vanes, and increases the pressure intensity difference between two surfaces of each vane so as to obtain greater propulsion. The utility model can serve as a propeller to be arranged in delivery tools such as vehicles, boats, large blowmobiles and aircrafts, can be used as vanes of aerogenerators or as rotor wings to be arranged on helicopters, and also can be used as aerofoils of airplanes, for purpose of improving lifting force.

Description

A kind of blade that obtains fluid differential pressure propelling force

Technical field

The utility model relates to propelling unit, particularly a kind of blade that obtains fluid differential pressure propelling force in fluids such as air.

Background technology

Chinese patent application open source literature CN 86107822A discloses a kind of " differential pressure thruster ", it is by blade, axle and pressure differential disc are formed, pressure differential disc is enclosed within on the axle, and it is integrally welded with blade and axle, when driving engine drives differential pressure thruster work, at its blade, under the effect of pressure differential disc etc., air in the differential pressure thruster institute region is discharged from the side, perhaps air is pressed inwards from the side of differential pressure thruster, atmospheric pressure value in the differential pressure thruster institute region is changed, two end faces at pressure differential disc produces two different zones of pressure values, differential pressure thruster is subjected to pressure difference at its axis direction and is not equal to zero, thereby obtains the propulsive effort of air to it.

Application number is that 200580002739.5 Chinese patent discloses a kind of " propelling unit ".It has the main shaft that at least two wheel hubs are installed in the above, blade evenly is being fixed on the circumference on each wheel hub, each blade all has sharp keen preceding and lagging dege, and become to have maximum ga(u)ge (0.10-0.25) b of wheel hub along the extensional fault of blade, and the stretching, extension along blade is reversed with respect to extending through the middle axle of local chord, and this propelling unit is carried out rotation by axle drive shaft and train of gears by motor.

Summary of the invention

The purpose of this utility model is the blade that proposes a kind of new acquisition fluid differential pressure propelling force, be achieved through the following technical solutions: a kind of blade that obtains fluid differential pressure propelling force, it is characterized in that constituting vane group by ladder step shape hierarchal arrangement by the blade more than at least two, be provided with spacing between each blade of vane group, being provided with fixedly between each blade of vane group, gusset is connected.

The characteristics that the utility model had are that some propulsive force is to obtain by the pressure that reduces the non-fluoran stream surface of blade again in the propulsive force that obtains, blade is to make upper strata blade fluoran stream surface fluid cross the non-fluoran stream surface of lower leave through the spacing jet flow of blade and blade by ladder step shape hierarchal arrangement, increase the flowing power of the non-fluoran stream surface fluid of lower leave, reduce the pressure of the non-fluoran stream surface of blade, the pressure difference on blade two sides is increased, obtain bigger propulsive force.

The utility model can be used as screw propeller and is installed on the means of deliverys such as vehicle, boats and ships, large-scale sled, aircraft, can be used as the blade of aerogenerator or be installed on the autogyro as rotor, also can be used as the wing of aircraft, improve its lift, utilize the air pressure of air or the pressure of water to obtain propelling thrust.

Description of drawings

Fig. 1 is the scheme drawing of one of blade embodiment of the present utility model;

Fig. 2 is two the scheme drawing of blade embodiment of the present utility model;

Fig. 3 is the scheme drawing of one of novel embodiment that is used for propeller of this reality;

Fig. 4 is two the scheme drawing of the novel embodiment that is used for propeller of this reality.

Number in the figure is respectively: 1-upper strata blade; The 2-lower leave; 3-is gusset fixedly; The 4-wheel disc; A-blade fluoran stream surface; The non-fluoran stream surface of B-blade; V-blade movement direction; C-impeller hand of rotation.

The specific embodiment

According to the blade of the acquisition fluid differential pressure propelling force that the utility model proposes, its keystone configuration is to constitute vane group by the blade that (contains two) more than at least two by ladder step shape hierarchal arrangement.Two embodiment of Fig. 1 and Fig. 2 have enumerated and have adopted the composition pattern of three blades by ladder step shape hierarchal arrangement, wherein (also being top) blade of the superiors is referred to as upper strata blade 1, it below it lower leave 2, by that analogy, second layer blade is again the upper strata blade of the 3rd layer of blade, all has upper and lower ATM layer relationsATM thus between each blade.By ladder step shape hierarchal arrangement that spacing is arranged, and be provided with fixedly that gusset 3 is connected between each blade of vane group, the size of spacing is determined according to design between blade and the blade, locatees by fixing gusset 3, and its spacing is the fluid passage.The difference of two embodiment is varying in size of arrangement pitches between each blade, to satisfy in different fluid mediums, different usage condition and the requirement under the state of kinematic motion.

P among P among Fig. 1-P section and Fig. 2 ₁-P ₁Section is further expressed the situation that two embodiment blades are arranged, and indicates the sense of motion V of blade fluoran stream surface A, non-fluoran stream surface B and blade.

Design philosophy of the present utility model and method are: adopt by at least two above blades and arrange the vane group that constitutes, each blade of vane group is not on same plane of movement, when vane group is pressed sense of motion V motion, fluoran stream surface A and fluid at bevelled upper strata blade 1 produce relative motion, make the fluid process of upper strata blade 1 fluoran stream surface A and the non-fluoran stream surface B that the spacing jet flow between the lower leave 2 is crossed lower leave 2, because it is last, the fluid of jet flow is opposite with the sense of motion of blade in the lower leave spacing, the fluid ejection of jet flow hinders the direct pressure of other fluid to lower leave 2 non-fluoran stream surface B, reduced the pressure of lower leave 2 non-fluoran stream surface B, thereby increase the pressure difference on lower leave 2 two sides, obtain the existing bigger propulsive force of single blade pattern with this.

Fig. 3 illustrates the example that the utility model is applied to propeller.It is made up of wheel disc 4 and the blade that is fixed on the wheel disc 4, drives its running by actuating device by the wheel disc axle.On wheel disc 4, two vane group are installed by being symmetrical arranged, each vane group is made up of three blades, and be provided with fixedly that gusset 3 is connected, spacing is passed through fixedly gusset 3 location between blade and the blade, fixedly gusset 3 not only plays the effect of fixing spacing between the blade on the same group and gradient, also play and reduce rocking and vibrating of blade, prevent the effect of the vibration that causes by air-flow in the blade movement effectively.Each vane group is obliquely installed by certain angle (as the 8-17 degree) on wheel disc 4, by C to being rotated.

Fig. 4 illustrate the utility model be applied to propeller embodiment two.The difference of it and Fig. 3 embodiment is that three vane group are installed on the circumference of wheel disc 4 symmetrically, and each vane group is made up of three blades, and each vane group is obliquely installed by certain angle on wheel disc 4, by C to being rotated.P among the figure ₂-P ₂Section illustrates its blade and arranges the situation (blade of Fig. 3 embodiment is arranged identical therewith) that reaches fixedly gusset 3 settings.

Under the mode of operation, when propelling unit is pressed C direction rotation (blade is pressed the motion of V direction among corresponding diagram 1, Fig. 2), the spacing jet flow that the fluid warp of upper strata blade 1 fluoran stream surface A and lower leave are 2 is crossed the non-fluoran stream surface B of lower leave 2, because the fluid of jet flow is opposite with the sense of motion of blade in the upper and lower layer blade spacing, the fluid ejection of jet flow hinders the direct pressure of other fluid to lower leave 2 non-fluoran stream surface B, reduced the pressure of lower leave 2 non-fluoran stream surface B, thereby increase the pressure difference on lower leave 2 two sides, obtain bigger fluid differential pressure propelling force with this.Movement relation between second layer blade and the 3rd layer of blade and the like.

Adopt the utility model to obtain the application of the blade of fluid differential pressure propelling force, can cw or anticlockwise direction rotation, will obtain the opposite propulsive force of direction during the phase despining.

Claims

1, a kind of blade that obtains fluid differential pressure propelling force is characterized in that constituting vane group by the blade more than at least two by ladder step shape hierarchal arrangement, is provided with spacing between each blade of vane group.

2, the blade of acquisition fluid differential pressure propelling force according to claim 1, gusset is connected to it is characterized in that being provided with fixedly between each blade of vane group.