Mechanical disconnects for parallel power lanes in hybrid electric propulsion systems
AssigneePratt & Whitney Canada Corp.
InventorsEric LaTulipe, Jean Thomassin, Todd A. Spierling, Robert A. Bayles
Life of this patent
Estimating the term…
Abstract
A hybrid propulsion system includes a heat engine configured to drive a heat engine shaft. An electric motor is configured to drive a motor shaft. A transmission system includes at least one gear box. The transmission system is configured to receive rotational input power from each of the heat engine shaft and the motor shaft and to convert the rotation input power to output power. The motor shaft includes a disconnect mechanism to allow the heat engine to rotate with the electric motor stopped. The heat engine shaft includes a disconnect mechanism to allow the electric motor to rotate with the heat engine stopped.
Claims13
A hybrid propulsion system comprising:
- a heat engine configured to drive a heat engine shaft;
- an electric motor configured to drive a motor shaft;
- and
- a transmission system including at least one gear box, wherein the transmission system is configured to receive rotational input power from each of the heat engine shaft and the motor shaft and to convert the rotation input power to output power, wherein the heat engine shaft includes a disconnect mechanism to allow the electric motor to rotate with the heat engine stopped.
A hybrid propulsion system comprising:
- a heat engine configured to drive a heat engine shaft;
- an electric motor configured to drive a motor shaft;
- and
- a transmission system including at least one gear box, wherein the transmission system is configured to receive rotational input power from each of the heat engine shaft and the motor shaft and to convert the rotation input power to output power, wherein the motor shaft includes a disconnect mechanism to allow the heat engine to rotate with the electric motor stopped.
A hybrid propulsion system comprising:
- a heat engine configured to drive a heat engine shaft;
- an electric motor configured to drive a motor shaft;
- and
- a transmission system including at least one gear box, wherein the transmission system is configured to receive rotational input power from each of the heat engine shaft and the motor shaft and to convert the rotation input power to output power, wherein the motor shaft includes a disconnect mechanism to allow the heat engine to rotate with the electric motor stopped, wherein the heat engine shaft includes a disconnect mechanism to allow the electric motor to rotate with the heat engine stopped.
Dependencies are inferred from the claim text.