US 2021/0155341 A1 · VARIABLE SPEED TRANSMISSION AND RELATED METHODS

Abstract

A variable speed transmission is disclosed, with a transmission apparatus which includes a planetary gear set having a ring gear and a sun gear. The variable speed transmission further includes a primary engine for powering the sun gear, a braking device engaging the ring gear, and a controller configured to alter the rotational speed of the ring gear by adjusting the braking device.

Claims20

Dependent claims

A variable speed transmission system, comprising:

a transmission apparatus including a planetary gear set having a ring gear and a sun gear,
a primary engine for powering the sun gear,
a braking device engaging the ring gear, and
a controller configured to alter the rotational speed of the ring gear by adjusting the braking device.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

16/698,742Filed 27 Nov 2019

Published

27 May 2021

Term ends

Not estimatedThe source records don’t support an estimate.

Classification17 codes

B64C 27/82
Rotorcraft; Rotors peculiar thereto: characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor…
B64C 27/06
Helicopters: with single rotor
B64C 27/12
Helicopters: rotor drives
B64D 35/04
Transmitting power from power plants to propellers or rotors; Arrangements of transmissions: characterised by the transmission driving a plurality…

Variable speed transmission and related methods

Life of this patent

Variable speed transmission and related methods

Life of this patent

Abstract

Claims20