Independent power generation in aircraft
US-2015014479-A1 · Jan 15, 2015 · US
Emergency power sources for propulsion systems
US2016176534A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016176534-A1 |
| Application number | US-201414577176-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 19, 2014 |
| Priority date | Dec 19, 2014 |
| Publication date | Jun 23, 2016 |
| Grant date | — |
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Abstract
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A hybrid-electric propulsion system includes a motor drive and a rechargeable energy storage system electrically connected to the motor drive. The hybrid-electric propulsion system also includes a gas turbine engine operatively connected to the motor drive and the rechargeable energy storage system and an emergency power source operatively connected to the motor drive. A method for providing emergency power to a hybrid electric propulsion system includes determining whether one of an main engine power source and a rechargeable energy storage system are available for powering a motor drive. The method includes initiating a single-use emergency power source for powering the motor drive if the main engine power source and the rechargeable energy storage system are unavailable.
First claim
Opening claim text (preview).
What is claimed is: 1 . A hybrid-electric propulsion system comprising: a motor drive; a rechargeable energy storage system electrically connected to the motor drive; a gas turbine engine operatively connected to the motor drive and the rechargeable energy storage system; and an emergency power source operatively connected to the motor drive. 2 . A hybrid-electric propulsion system as recited in claim 1 , further comprising a high-speed electric machine operatively connected between the gas turbine engine and the motor drive. 3 . A hybrid-electric propulsion system as recited in claim 2 , further comprising an active bi-directional rectifier/inverter electrically connected between the motor drive and the high-speed electric machine. 4 . A hybrid-electric propulsion system as recited in claim 1 , further comprising a bi-directional DC to DC converter/battery charger electrically connected between the motor drive and the rechargeable energy storage system. 5 . A hybrid-electric propulsion system as recited in claim 1 , wherein the emergency power source is a single-use emergency power source. 6 . A hybrid-electric propulsion system as recited in claim 1 , wherein the emergency power source includes a second high-speed electric machine and a turbine. 7 . A hybrid-electric propulsion system as recited in claim 6 , wherein the emergency power source includes a solid propellant gas generator operatively connected to the turbine for driving the turbine. 8 . A hybrid-electric propulsion system as recited in claim 6 , wherein the emergency power source includes an active rectifier electrically connected between the second high-speed electric machine and the motor drive. 9 . A hybrid-electric propulsion system as recited in claim 6 , wherein the emergency power source includes a liquid propellant storage operatively connected to the turbine for driving the turbine. 10 . A hybrid-electric propulsion system as recited in claim 1 , further comprising an electric propeller and drive motor electrically connected to the motor drive. 11 . A hybrid-electric propulsion system as recited in claim 1 , further comprising a second motor drive operatively connected to the rechargeable energy storage system, the gas turbine engine, and the emergency power source. 12 . A method for providing emergency power to a hybrid electric propulsion system: determining whether one of an main engine power source and a rechargeable energy storage system are available for powering a motor drive; and initiating a single-use emergency power source for powering the motor drive if the main engine power source and the rechargeable energy storage system are unavailable.
Assignees
Inventors
Classifications
Air crafts · CPC title
of gas-turbine type (jet aircraft B64D27/16) · CPC title
with additional electric power supply (with capacitors charged by engine-driven generators B60L50/40; with batteries charged by engine-driven generators B60L50/61) · CPC title
Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train · CPC title
Electric power distribution systems onboard aircraft · CPC title
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- What does patent US2016176534A1 cover?
- A hybrid-electric propulsion system includes a motor drive and a rechargeable energy storage system electrically connected to the motor drive. The hybrid-electric propulsion system also includes a gas turbine engine operatively connected to the motor drive and the rechargeable energy storage system and an emergency power source operatively connected to the motor drive. A method for providing em…
- Who is the assignee on this patent?
- Hamilton Sundstrand Corp
- What technology area does this patent fall under?
- Primary CPC classification B60L3/0092. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Jun 23 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).