Turbomachine Lubrication System with an Anti-Siphon Valve for Windmilling
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Nov 13, 2014
app pub date -
May 10, 2014
filing date -
May 10, 2013
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
The present application relates an oil feed system for a turbomachine having a tank designed to contain a volume of oil, a pump designed to suck the oil from the tank and discharge it to at least one device on the turbomachine, and an anti-siphon valve designed to prevent the flow of oil to the device or devices. The anti-siphon valve is located upstream of the pump and is designed to allow the flow of oil when the speed of the pump becomes higher than a speed R1. The present application also relates to a turbojet fitted with a fan and two anti-siphon valves designed to open at different rotational speeds of the first pump.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
TECHSPACE AERO S A | 4041 HERSTAL (MILMORT) |
International Classification(s)

- 2014 Application Filing Year
- F01C Class
- 191 Applications Filed
- 180 Patents Issued To-Date
- 94.25 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Cornet, Albert | Verviers, BE | 23 | 321 |
# of filed Patents : 23 Total Citations : 321 | |||
Raimarckers, Nicolas | Tourinne (Braives), BE | 23 | 259 |
# of filed Patents : 23 Total Citations : 259 |
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Patent Citation Ranking
- 5 Citation Count
- F01C Class
- 18.40 % this patent is cited more than
- 11 Age
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- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 13, 2026 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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