Invention content
The technical problem to be solved in the present invention is to provide a kind of hydraulic jet propulsion, ship resistance is small, hydraulic jet propulsion without rudder without
Rudder drag reduction boat.
In order to solve the above technical problems, the technical scheme is that:
A kind of hydraulic jet propulsion contains hull, propulsion device and power plant without rudder drag reduction boat.
The power plant, or be motor, or be gasoline engine, or be diesel engine, or be steam engine, or be steam turbine, or
For gas turbine, or it is nuclear device, or is combined unit.
There is no rudder on the hull.
The propulsion device is public centrifugal pump;The centrifugal pump is by pump case, impeller, pump shaft, suction hose and pressure pipe group
It is integral.
Two centrifugal pumps are separately mounted on the hull rear end of one of first side of a ship both sides shell, no matter the hull load-carrying whether
The two centrifugal pumps are respectively positioned on the lower section of the hull institute floatation surface;Pump shaft does not stretch out the outer lateral of the pump case of side on centrifugal pump
The interior lateral face of the shell in face and corresponding position snugly links together.
The suction hose of each centrifugal pump, its rear end snugly pass perpendicularly through the shell of the hull of corresponding position,
It is bent forward after being pierced by from shell and is close to the outer side of shell to stretching out forward;The suction hose of extension, axis water
It is flat, from rear to preceding gradually flat in vertical direction, snugly it is connect in contact position with the shell of corresponding position,
Water inlet is vertical inclined surface, and the inclined surface and the angle of corresponding position shell are less than 90 °.
The pressure pipe of each centrifugal pump is pipe, is snugly tilted towards outer rear direction being somebody's turn to do across corresponding position
The shell of hull;The pressure pipe outside shell, the outer lateral face for being close to the shell of the hull of corresponding position are horizontal
It stretches out, is snugly connect in contact position with the shell of corresponding position backward, water jet is disc.
Pump shaft on each centrifugal pump passes through the pump case on the inside of the centrifugal pump and is stretched out towards the middle part of the hull.
The impeller being mounted on each centrifugal pump on pump shaft, or be single stage type, or be multi-stag.
The power plant is respectively that the rotation of the upper pump shaft of one of two centrifugal pumps provides power.
When the pump shaft rotation on power plant driving centrifugal pump, which drives impeller synchronous rotary thereon, hull
Outer water is along the outer lateral surface current of shell on the hull first side of a ship of the centrifugal pump homonymy into the suction hose on the centrifugal pump, the impeller
After being allowed to acceleration, sprayed from the pressure pipe high speed of the centrifugal pump, spraying the reaction force of flow makes the hull that resistance be overcome to advance
Or accelerate;During the hydraulic pressure in the front of the centrifugal pump homonymy is entered the suction hose by atmospheric pressure, the relative velocity of these water
Increase, these water largely flow through the outer lateral face of the head side of a ship shells of homonymy, and according to bernoulli principle, the pressure of these water subtracts
It is small, thus the resistance of the hull is reduced;When the power of two centrifugal pumps on the hull is equal, the hull is along straight ahead,
When the power of the two centrifugal pumps is unequal, the bow of the hull is turned to the side of the small centrifugal pump of power, thus the hull
On do not fill rudder and can allow it and turn to;There is no rudder on the hull, is further decreased by resistance.
In order to enable centrifugal pump to work normally, covering installation filter screen and can edge on the water inlet of suction hose on centrifugal pump
The scraper plate of the filter screen reciprocating rotation, the scraper plate wipe the floating material being adsorbed on the filter screen off in time.
After such structure, the reaction force for the high-velocity flow that pressure pipe sprays backward on centrifugal pump makes hull overcome
Resistance advances or accelerates, and centrifugal pump becomes propulsion device, expands the application range of centrifugal pump.Centrifugal pump is used to promote, and is
One of the important innovations of the present invention.
After such structure, since the inclined surface of the water inlet of suction hose and the angle of corresponding position shell are less than
90 °, the outer lateral face of homonymy head side of a ship shells is flowed through into most of water of suction hose, flows through the outer lateral face of first side of a ship shell these
The relative velocity of water increases, and according to bernoulli principle, the pressure of these water reduces, thus reduces to the resistance of hull.Water inlet
The resistance that the application of the structure collaboration bernoulli principle of inclined surface makes hull receive reduces, this is the two of important innovations of the invention.
After such structure, when the power of two centrifugal pumps on hull is equal, the hull is along straight ahead, when this
The bow of the hull is turned to the side of the small centrifugal pump of power when the power of two centrifugal pumps is unequal, thus on the hull not
Fill rudder.There is no rudder, resistance to further decrease on hull.Although without rudder on hull, but still can be allowed to turn to, and reduce resistance
Power, this is the three of the important innovations of the present invention.
After such structure, hull is due to using hydraulic jet propulsion, significantly to fatal harm caused by organism in water
Reduce, is promoted compared with propeller much better.
After such structure, due to covering installation filter screen and can be along the mistake on the water inlet of suction hose on centrifugal pump
The scraper plate of strainer reciprocating rotation, the floating material being adsorbed on filter screen can in time be wiped off by scraper plate, the rain brush being similar on automobile
The rainwater on windshield is wiped off in time in time, thus centrifugal pump reliable operation, long lifespan.
After such structure, not only propulsion device is simple in structure, and as propulsion, drag reduction, steering and protection water
Multiple functions such as middle biology, reasonable design is compact-sized, makes the best use of everything.
After such structure, the present invention goes back portable and is used for guided missile and deep-sea detecting utensil in submarine, torpedo, water,
It has a extensive future.
Specific implementation mode
As shown in Figure 1, a kind of hydraulic jet propulsion contains hull 1, propulsion device and power plant without rudder drag reduction boat.
The power plant, or be motor, or be gasoline engine, or be diesel engine, or be steam engine, or be steam turbine, or
For gas turbine, or it is nuclear device, or is combined unit.
There is no rudder on the hull 1.
As shown in Figure 1, the propulsion device is public centrifugal pump 3.The centrifugal pump 3 is by pump case 4, impeller 5, pump shaft 6, suction
8 groups of water pipe 7 and pressure pipe are integral.
As shown in Figure 1, two centrifugal pumps 3 are separately mounted to the rear end of one of 2 both sides of first side of a ship shell on the hull 1, no matter
The two centrifugal pumps 3 are respectively positioned on the lower section of 1 floatation surface of hull whether 1 load-carrying of hull;Pump shaft 6 is not stretched on centrifugal pump 3
The interior lateral face of the outer lateral face for the pump case 4 for going out side and the shell of corresponding position snugly links together.
As shown in Figure 1, the suction hose 7 of each centrifugal pump 3, its rear end snugly passes perpendicularly through being somebody's turn to do for corresponding position
The shell of hull 1 is bent forward after being pierced by from shell and is close to the outer side of shell to stretching out forward.The water suction of extension
Pipe 7, axis horizontal, from rear to preceding gradually flat in vertical direction, with the shell of corresponding position in contact position with close-fitting
Conjunction mode connects, and water inlet 7a is vertical inclined surface, and the inclined surface and the angle of corresponding position shell are less than 90 °.
As shown in Figure 1, the pressure pipe 8 of each centrifugal pump 3 is pipe, snugly it is tilted towards outer rear direction and passes through
The shell of the hull 1 of corresponding position.The pressure pipe 8 outside shell, is close to the shell of the hull 1 of corresponding position
Outer lateral face horizontal direction after stretch out, snugly connect in contact position with the shell of corresponding position, water jet 8a
For disc.
As shown in Figure 1, the pump shaft 6 on each centrifugal pump 3 passes through the pump case 4 of 3 inside of centrifugal pump and towards the hull 1
Middle part is stretched out.
As shown in Figure 1, being mounted on the impeller 5 on pump shaft 6 on each centrifugal pump 3, or it is single stage type, or is multi-stag.
As shown in Figure 1, the rotation that the power plant is respectively pump shaft 6 on one of two centrifugal pumps 3 provides power.
As shown in Figure 1, when the pump shaft 6 on power plant driving centrifugal pump 3 rotates, which drives impeller 5 thereon
Synchronous rotary, water outside hull 1 is along the outer lateral surface current of shell on the first side of a ship 2 of hull 1 of 3 homonymy of centrifugal pump into the centrifugal pump
Suction hose 7 on 3 after the impeller 5 is allowed to acceleration, sprays at a high speed from the pressure pipe 8 of the centrifugal pump 3, sprays the reaction of flow
Power makes the hull 1 that resistance be overcome to advance or accelerate.The hydraulic pressure in the front of 3 homonymy of centrifugal pump is entered the suction hose 7 by atmospheric pressure
During, the relative velocity of these water increases, these water largely flow through the outer lateral face of 2 shell of the head sides of a ship of homonymy, root
According to bernoulli principle, the pressure of these water reduces, thus reduces to the resistance of the hull 1.When two centrifugal pumps on the hull 1
The hull 1 is along straight ahead when 3 power is equal, and when the power of the two centrifugal pumps 3 is unequal, the bow of the hull 1 is to work(
The side of the small centrifugal pump 3 of rate turns to, thus not filling rudder also on the hull 1 can allow it to turn to;There is no rudder on the hull 1, by
Resistance further decreases.
As shown in Figure 1, in order to enable centrifugal pump 3 to work normally, covered on the water inlet 7a of suction hose 7 on centrifugal pump 3
Filter screen is installed and can be scraped the floating material being adsorbed on the filter screen in time along the scraper plate of the filter screen reciprocating rotation, the scraper plate
Fall.
Embodiments of the present invention are explained in detail above in conjunction with attached drawing.The present invention is not limited to above-mentioned embodiment party
Formula, technical field those of ordinary skill within the scope of knowledge, make without departing from the purpose of the present invention
The various change gone out, still falls within the scope of the present invention.