Double-rotor pump-jet propeller and advancing tool adopting same

A dual-rotor pump and propeller technology, which is applied in ship propulsion, propulsion parts, ship parts, etc., can solve the problems of limited installation space of the motor stator, complex structure of the external duct, and reduced propulsion efficiency of the propeller, etc. The effect of maintenance, saving production and maintenance costs, and improving propulsion efficiency
CN112874746AInactive Publication Date: 2021-06-01武汉波依迈科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
武汉波依迈科技有限公司
Publication Date
2021-06-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a double-rotor pump-jet propeller. The pump-jet propeller comprises a rotating shaft, end covers and a shell. The pump-jet propeller is characterized in that: the rotating shaft is of a hollow and trumpet-shaped structure, is movably fixed in the end covers on the two sides of the shell through a bearing, and comprises a large end part, a small end part and a gradual change part connecting the large end part and the small end part; a first propeller is fixedly mounted at the large end part or the gradual change part; a first power driving device used for driving the rotating shaft to rotate is fixedly installed in the space between the rotating shaft and the shell; a second propeller is contained in the rotating shaft and located at the front end or the rear end of the first propeller; the second propeller is movably connected into a supporting seat on a flow guide cover through a connecting rod, and the flow guide cover is fixedly installed on the shell; and the connecting rod is driven by a second power driving device to rotate. The invention provides the high-power, high-efficiency and low-noise double-rotor pump-jet propeller which is designed by fully utilizing the Venturi effect and the structural characteristics of a pipeline.
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Description

technical field

[0001] The invention belongs to the field of fluid propellers, and in particular relates to a high-power, high-efficiency double-rotor pump-jet propeller designed by utilizing the Venturi effect and the structural characteristics of pipelines and a traveling tool using the propeller. Background technique

[0002] As an effective energy-saving scheme for ship propulsion, contra-rotating propellers have been receiving much attention. The counter-rotating propellers are arranged on the propulsion axis of the propellers, one behind the other. The diameter of the front propeller is larger than the diameter of the rear propeller, and The direction of rotation of the two propellers is opposite. We know that in the traditional single-propeller propulsion system, the vortex energy in the propeller wake cannot be utilized, while in the counter-rotating propeller propulsion system, the vortex energy produced by the front propeller is not utilized. The vortex energy of t...

Claims

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