SU1751047A1 - Paddle wheel - Google Patents

Abstract

Use: on ships with a small draft. SUMMARY OF THE INVENTION: The propeller wheel comprises a shaft 1 with radial blades and side walls 3 In the side walls there are holes arranged in two concentric circles in which inlet 6 and outlet 7 valves are installed. The inter-blade spaces of the wheel communicate with the channel through the manifold and exhaust valves and with the environment through the intake valves. 3 il.

Description

Fig.Z

The invention relates to shipbuilding, namely to paddle wheels mounted on ships with low draft.

A propeller wheel is known, which contains a shaft with radial blades and side walls, as well as an air supply device in the inter-blade cavities made with a channel.

The disadvantage of such a paddle wheel is a significant increase in the dimensions and power of the propellers with increasing ship speed.

The purpose of the invention is to expand the functionality of the paddle wheel by using it as a marine pump.

The goal is achieved by the fact that a known paddle wheel consisting of a shaft and blades (plates) radially fixed on it, as well as side walls that form cavities with pairs of lobes (plates), is provided with inlet and exhaust valves at the base of each cavity, the inlet valve is connected to the atmosphere, and the exhaust valve is connected to the receiving device and the air duct to the working area.

FIG. 1 and 2 depict a paddle wheel in two projections; in fig. 3 - valves, cut.

The paddle wheel contains a shaft 1 with radial blades 2 and side walls 3, as well as an air supply unit having a channel 4. The side walls are made with openings arranged in two concentric circles with a center on the shaft axis. The air supply unit is provided with a manifold 5 located coaxially with the shaft, as well as with inlet 6 and exhaust 7 valves installed in the openings of the side walls. The collector is in communication with the above channel 4, and the interlobe cavities of the paddle wheel are in communication with the environment through the respective intake valves 6 and with the collector through the corresponding exhaust valves 7.

When the paddle wheel rotates, the blades, falling into the water, trap air into the inter-blade space, which

the pressure of the water entering the cavity is compressed, opens the exhaust valve and flows through the manifold 5 and channel 4 into the working area, for example, under the bottom

the vessel.

At the same time, the ends of the blades 2 create an emphasis, moving the vessel forward. When the blades 2 come out of the water, the intake valve b and atmospheric air open, filling

the inter-blade space allows free discharge of water from the cavity. At this time, the exhaust valve 7 is closed.

Since when one pair of blades comes out of the water of the other, the steam enters the water,

The air supply process is continuous, proportional to the speed of rotation of the paddle wheel.

The air pressure depends on the depth of the blades. Thus, the paddle wheel additionally performs the function of an air pump.

The paddle wheel may be used on ships with air lubrication instead of additional pressure devices.

Claims (1)

of air. Moreover, as the vessel speed increases, the pressure of the incoming air will decrease and the volume will increase. An inventive paddle wheel comprising a shaft with radial blades and side walls, as well as a device for supplying air to the inter-blade cavities, made with a channel, characterized in that, in order to expand its functionality by using it as an air pump, the side walls made with holes arranged in two concentric circles centered on the axis of the shaft, the device for the air supply is equipped with a manifold located coaxially with the shaft, as well as inlet and exhaust valves installed in the apertures of the side walls; manifold through appropriate exhaust valves. Water tuna FIG. one