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Helicopter with variable distance between main rotor and tail rotor

A main rotor and helicopter technology, applied in the field of helicopters, can solve problems such as the disclosure of technical solutions, and achieve the effects of extending battery life, high hovering efficiency, and improving hovering efficiency and crosswind resistance.

Active Publication Date: 2021-07-09
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, no relevant technical solutions have been disclosed at home and abroad

Method used

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  • Helicopter with variable distance between main rotor and tail rotor
  • Helicopter with variable distance between main rotor and tail rotor

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] like figure 1 As shown, a helicopter with a variable distance between the main rotor and the tail rotor includes a fuselage 100, a variable length tail beam 200, a main rotor 300, a tail rotor 400, and a landing gear 500;

[0027] The main rotor 300 is located directly above the fuselage 100 , the landing gear 500 is located below the fuselage 100 , and the variable-length tail boom 200 is arranged between the fuselage 100 and the tail r...

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Abstract

The invention belongs to the technical field of helicopter design, and relates to a helicopter with a variable distance between a main rotor and a tail rotor. The helicopter comprises a fuselage (100), a variable-length tail beam (200), the main rotor (300), the tail rotor (400) and an undercarriage (500), the main rotor (300) is located right above the fuselage (100), the undercarriage (500) is located below the fuselage (100), the variable-length tail beam (200) is arranged between the fuselage (100) and the tail rotor (400), and the distance between the main rotor (300) and the tail rotor (400) can be adjusted. The transmission-free tail rotor helicopter with the variable tail beam length has the advantages of high hovering efficiency, strong crosswind resistance, high forward flight aerodynamic efficiency and the like.

Description

technical field [0001] The invention belongs to the technical field of helicopter design, in particular to a helicopter with a variable distance between a main rotor and a tail rotor. Background technique [0002] In recent years, with the development of conventional configuration helicopters towards electrification, the development of transmissionless electric tail rotor has attracted more and more attention. However, limited by the energy density and energy efficiency of power batteries, the practical use of electric tail rotors must improve energy efficiency. Therefore, saving power battery energy and prolonging battery life are the most urgent tasks in the overall design of helicopters. [0003] This design scheme provides a new structural form of variable main and tail rotor spacing for single-rotor helicopters with tail rotors, which maintains the minimum safe distance between the main rotor and the tail rotor during the cruise phase, and improves the aerodynamic effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C5/10
CPCB64C5/10B64U10/10
Inventor 陈国军徐茂王乐
Owner CHINA HELICOPTER RES & DEV INST
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