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Rotary wing aircraft having a transmission system equipped with an electric emergency engine

A technology for electric motors and aircraft, applied in the field of rotorcraft, can solve problems such as difficult access to mechanical conjugate devices

Pending Publication Date: 2021-07-23
EUROCOPTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the very different rotational speeds of electric and heat engines, it is difficult to obtain such a mechanically conjugated device

Method used

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  • Rotary wing aircraft having a transmission system equipped with an electric emergency engine
  • Rotary wing aircraft having a transmission system equipped with an electric emergency engine
  • Rotary wing aircraft having a transmission system equipped with an electric emergency engine

Examples

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Embodiment Construction

[0091] Elements shown in several different figures are assigned a single reference number.

[0092] figure 1 A diagram illustrating an aircraft 1 according to the invention is shown. Aircraft 1 is equipped with rotor wings 3 . Rotary wing 3 has a plurality of blades 4 .

[0093] To rotate the blades 4 about the axis of rotation of the rotor 3 , the aircraft 1 is equipped with a power plant 5 .

[0094] The power plant 5 includes at least one heat engine 6 . Possibly, the power plant 5 is a single engine plant comprising a single heat engine 6 . The heat engine 6 is an internal combustion engine. According to the example shown, the heat engine 6 is a turbine engine with a gas generator 8 and a power turbine 7 , in particular a power turbine 7 according to the example. Alternatively, one or more heat engines 6 are, for example, piston engines.

[0095] The heat engine 6 can be controlled and monitored in a conventional manner by means of an engine computer 9 and conventio...

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Abstract

The present invention relates to an aircraft (1) provided with a rotary airfoil (3), a power plant (5) and an assistance system (40) having an electric motor. The power plant (5) comprises a power transmission box (10) and at least one heat engine (6). The aircraft (1) includes at least one accessory (33) which is set in motion by a secondary output shaft (20) of the power transmission box (10). The assistance system (40) is provided with a mechanical connection module having a connection shaft (42) which is connected to the secondary output shaft (20). A first connection member (48) is connected to said at least one accessory (33) and is connected by a first mechanical link internal (45) to the connection shaft (42), a second connection member (49) being connected to the electric motor (75) and connected by a second mechanical link internal (50) to the connection shaft (42).

Description

technical field [0001] FIELD OF THE INVENTION The present invention relates to a rotorcraft comprising at least one thermal engine having a drive train equipped with an emergency electric motor. Background technique [0002] A rotary wing aircraft is usually equipped with at least one main rotor for ensuring its lift and even its propulsion and is usually equipped with a yaw movement control system. Such a yaw control system may for example comprise an auxiliary rotor located at the rear of the aircraft. [0003] In order to drive the main rotor and, if necessary, the rear rotor in rotation, the aircraft has a power plant which may include one or more heat engines. [0004] Thus, the aircraft has one or more heat engines to move the main and rear rotors through at least one power transfer case. [0005] The term "heat engine" refers to turboshaft engines or all internal combustion engines, especially piston engines, which can be used in such power plants. The term "heat e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D31/00B64D35/00
CPCB64D31/00B64D35/00B64C27/12B64C27/14B64D35/08B64C27/006B64D31/14Y02T50/60B64D31/09B64D31/18B64D27/33B64D27/357B64D35/025B64D27/02B64C27/64B64D31/06B64D27/24B64D27/026B64D31/10B64D2221/00
Inventor 克里斯蒂安·梅西耶让-维克托·拉佩尔马克·加齐诺
Owner EUROCOPTER
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