Apparatuses, systems and methods for automatically taxiing an aircraft
US-2016349752-A1 · Dec 1, 2016 · US
Aircraft landing gear wheel-drive system
US9630708B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9630708-B2 |
| Application number | US-201514839065-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 28, 2015 |
| Priority date | Aug 28, 2015 |
| Publication date | Apr 25, 2017 |
| Grant date | Apr 25, 2017 |
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- Title
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Abstract
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An aircraft landing gear wheel-drive system includes a first wheel drive unit for driving a first landing gear wheel of the aircraft and a second wheel drive unit for driving a second landing gear wheel of the aircraft. The first wheel drive unit has a first range of torque to speed (T/S) ratios. The second wheel drive unit has a second range of T/S ratios. The first range of T/S ratios is greater than the second range of T/S ratios.
First claim
Opening claim text (preview).
We claim: 1. An aircraft landing gear wheel-drive system, comprising: a first wheel drive unit for driving a first landing gear wheel of the aircraft; and a second wheel drive unit for driving a second landing gear wheel of the aircraft, wherein the first wheel drive unit has a first range of torque to speed (T/S) ratios, wherein the second wheel drive unit has a second range of T/S ratios, wherein the first range of T/S ratios is greater than the second range of T/S ratios, wherein the first wheel drive unit is a nose wheel drive unit, wherein the second wheel drive unit is a main gear wheel drive unit, wherein the first wheel drive unit includes a hydraulic motor, and wherein the second wheel drive unit includes one or more electric motors. 2. The drive system of claim 1 further comprising: a taxi control unit; the first wheel drive unit being controlled by the taxi control unit with first signals; and the second wheel drive unit being controlled by the taxi control unit with second signals. 3. The drive system of claim 1 wherein the first wheel drive unit includes a hydraulic clutch. 4. The drive system of claim 1 further comprising a flow-modulating valve unit coupled to the hydraulic motor. 5. The drive system of claim 1 further comprising an accumulator coupled to the hydraulic motor. 6. The drive system of claim 5 further comprising a hydraulic pump coupled to the accumulator. 7. The drive system of claim 1 : wherein the first wheel drive unit has aircraft reversing capability; and wherein the second wheel drive unit does not have aircraft reversing capability. 8. The drive system of claim 1 wherein the first wheel drive unit has regenerative braking capability provided by the hydraulic motor acting as a pump.
Assignees
Inventors
Classifications
- B64C25/405Primary
Powered wheels, e.g. for taxing · CPC title
Regenerative braking · CPC title
Regenerative braking · CPC title
Arrangement or adaptation of brakes · CPC title
the motor being electric · CPC title
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- What does patent US9630708B2 cover?
- An aircraft landing gear wheel-drive system includes a first wheel drive unit for driving a first landing gear wheel of the aircraft and a second wheel drive unit for driving a second landing gear wheel of the aircraft. The first wheel drive unit has a first range of torque to speed (T/S) ratios. The second wheel drive unit has a second range of T/S ratios. The first range of T/S ratios is grea…
- Who is the assignee on this patent?
- Honeywell Int Inc
- What technology area does this patent fall under?
- Primary CPC classification B64C25/405. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 25 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).