Turbo-molecular pump
US-2018238334-A1 · Aug 23, 2018 · US
Device for feeding a rocket engine with propellant
US2016195039A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016195039-A1 |
| Application number | US-201414909920-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 4, 2014 |
| Priority date | Aug 6, 2013 |
| Publication date | Jul 7, 2016 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A device ( 10 A, 10 B) for feeding a rocket engine with propellant, the device comprising at least one propellant tank ( 10, 11 ), a combustion chamber ( 18 ), and a feed pipe ( 12, 13 ) extending from the tank ( 10, 11 ) to the combustion chamber ( 18 ) to feed propellant to the combustion chamber. A valve ( 14, 15 ) and a main pump ( 16, 17 ) are arranged in succession along the feed pipe. The rocket engine device further comprises at least one branch pump ( 20, 21, 120, 220 ) making a branch connection to the tank upstream from the valve in order to feed an auxiliary pipe ( 22, 23, 122, 222 ) that serves an auxiliary function of the rocket engine.
First claim
Opening claim text (preview).
1 . A device for feeding a rocket engine with propellant, the device comprising at least one propellant tank, a combustion chamber, and a feed pipe extending from the tank to the combustion chamber to feed propellant to the combustion chamber with propellant and having a valve and a main pump arranged in succession along the feed pipe, the device comprising at least one branch pump connected by a branch to the tank upstream from the valve in order to feed an auxiliary pipe that serves an auxiliary function of the rocket engine. 2 . A device according to claim 1 , wherein the branch pump is an electric pump having a motor comprising a rotor and a stator, the rotor being arranged in a rotor chamber from which the stator is hermetically isolated. 3 . A device according to claim 1 , wherein an electrical power supply for a stator of the branch pump is directly accessible from outside the tank and outside the feed pipe. 4 . A device according to claim 1 , wherein the rotor is supported by at least one bearing that is cooled by a cooling circuit using the propellant as cooling fluid. 5 . A device according to claim 1 , wherein the branch pump has a motor casing, said motor casing having a surface along which the propellant can flow as a cooling fluid. 6 . A device according to claim 1 , wherein the branch pump is fastened to a wall of one element selected from the tank and the feed pipe. 7 . A device according to claim 6 , wherein the branch pump includes a fluid delivery volute and a motor casing, said volute being fastened to the motor casing and the motor casing being fastened to said wall. 8 . A device according to claim 7 , wherein the motor casing is located at least in part inside the element selected from the tank and the feed pipe having the branch pump fastened to its wall, while the volute is outside said element. 9 . A device according to claim 7 , wherein the motor casing and the volute are outside the element selected from the tank and the feed pipe having the branch pump fastened to its wall. 10 . A device according to claim 7 , wherein the engine casing and the volute are inside the element selected from the tank and the feed pipe having the branch pump fastened on its wall. 11 . A rocket engine including a propellant feed device according to claim 1 .
Assignees
Inventors
Classifications
- F02K9/46Primary
using pumps · CPC title
Canned motor pumps · CPC title
Cooling the drive system · CPC title
of centrifugal type · CPC title
Propellant tanks; Feeding propellants · CPC title
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Frequently asked questions
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- What does patent US2016195039A1 cover?
- A device ( 10 A, 10 B) for feeding a rocket engine with propellant, the device comprising at least one propellant tank ( 10, 11 ), a combustion chamber ( 18 ), and a feed pipe ( 12, 13 ) extending from the tank ( 10, 11 ) to the combustion chamber ( 18 ) to feed propellant to the combustion chamber. A valve ( 14, 15 ) and a main pump ( 16, 17 ) are arranged in succession along the feed pipe. T…
- Who is the assignee on this patent?
- Snecma
- What technology area does this patent fall under?
- Primary CPC classification F02K9/46. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jul 07 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).