Drainage method and purge collector of a carburation system of a helicopter
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-007/232
B64D-037/32
F02C-007/22
B64D-037/00
B64D-037/34
출원번호
US-0423524
(2013-08-27)
등록번호
US-10100742
(2018-10-16)
우선권정보
FR-12 58120 (2012-08-30)
국제출원번호
PCT/FR2013/051976
(2013-08-27)
국제공개번호
WO2014/033400
(2014-03-06)
발명자
/ 주소
Pearce, Simon
Lavie-Cambot, Bernard
Moebs, Hubert
출원인 / 주소
SAFRAN HELICOPTER ENGINES
대리인 / 주소
Oblon, McClelland, Maier & Neustadt, L.L.P.
인용정보
피인용 횟수 :
0인용 특허 :
8
초록▼
A helicopter engine collector includes an external longitudinal wall and two closed end walls, a longitudinal symmetry axis inclined ascendingly, couplings configured to be connected to purge drains, and a connection connected to a gas ejection pipe and connected to the bottom end wall. The collecto
A helicopter engine collector includes an external longitudinal wall and two closed end walls, a longitudinal symmetry axis inclined ascendingly, couplings configured to be connected to purge drains, and a connection connected to a gas ejection pipe and connected to the bottom end wall. The collector also includes, in its internal space, a chamber with its symmetry axis substantially parallel to the axis of the collector. The chamber includes a longitudinal wall and two transverse end walls. The chamber is connected to the purge coupling of the injection wheel via a radial connection emerging on its longitudinal wall, the symmetry axis of the chamber being inclined, with respect to the horizontal reference ground when the helicopter is in a ground position, by a reference angle such that this axis is situated parallel to the reference ground when the helicopter is in an acceleration phase. The collector prevents formation of fumes.
대표청구항▼
1. A purge collector configured to be fixed to a helicopter engine, the purge collector comprising: a roughly cylindrical external longitudinal wall delimited transversely by two closed end walls;a longitudinal symmetry axis inclined ascendingly from a bottom end wall situated closest to a horizonta
1. A purge collector configured to be fixed to a helicopter engine, the purge collector comprising: a roughly cylindrical external longitudinal wall delimited transversely by two closed end walls;a longitudinal symmetry axis inclined ascendingly from a bottom end wall situated closest to a horizontal reference ground when a helicopter, on the engine of which the purge collector is fixed, is placed in a ground position;at least one coupling configured to be connected to a fuel injection wheel purge drain in a combustion chamber of the engine; anda connection configured to be connected to a gas ejection pipe connected to the bottom end wall;wherein the purge collector defines an internal space in which is arranged a chamber with a roughly cylindrical shape and a symmetry axis substantially parallel to the axis of the collector, the chamber having a longitudinal wall and two transverse end walls, a first wall and a bottom wall, the bottom wall being situated closer to the reference ground than the first wall when the helicopter, on the engine of which the purge collector is fixed, is in the ground position, and an opening formed close to the first wall; andwherein the chamber is connected to a purge coupling of an injection wheel via a radial connection emerging on the longitudinal wall of the chamber, the symmetry axis of the chamber being inclined, with respect to the horizontal reference ground when the helicopter, on the engine of which the purge collector is fixed, is in the ground position, by a reference angle such that the symmetry axis of the chamber is to be situated substantially parallel to the reference ground when the helicopter is in an acceleration phase. 2. The purge collector according to claim 1, wherein the symmetry axis of the chamber is inclined by a relative angle fixed between +5° and +10° with respect to a principal axis of the helicopter defining the inclination of the helicopter with respect to the reference ground. 3. The purge collector according to claim 1, wherein the radial connection communicates with the purge drain coupled to an injection wheel emerges closer to the first wall than to the bottom wall of the chamber. 4. The purge collector according to claim 1, wherein the chamber has a circular cross section. 5. The purge collector according to claim 1, wherein the chamber has a size more than twice as great as a given volume of fuel corresponding to a maximum volume of fuel which can be trapped in the chamber. 6. A helicopter engine including a purge collector comprising a roughly cylindrical external longitudinal wall delimited transversely by two closed end walls;a longitudinal symmetry axis inclined ascendingly from a bottom end wall situated closest to a horizontal reference ground when a helicopter, on the engine of which the purge collector is fixed, is placed in a ground position;at least one coupling configured to be connected to a fuel injection wheel purge drain in a combustion chamber of the engine; anda connection configured to be connected to a gas ejection pipe connected to the bottom end wall;wherein the purge collector defines an internal space in which is arranged a chamber with a roughly cylindrical shape and a symmetry axis substantially parallel to the axis of the collector, the chamber having a longitudinal wall and two transverse end walls, a first wall and a bottom wall, the bottom wall being situated closer to the reference ground than the first wall when the helicopter, on the engine of which the purge collector is fixed, is in the ground position, and an opening formed close to the first wall; andwherein the chamber is connected to a purge coupling of an injection wheel via a radial connection emerging on the longitudinal wall of the chamber, the symmetry axis of the chamber being inclined, with respect to the horizontal reference ground when the helicopter, on the engine of which the purge collector is fixed, is in the ground position, by a reference angle such that the symmetry axis of the chamber is to be situated substantially parallel to the reference ground when the helicopter is in an acceleration phase.
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이 특허에 인용된 특허 (8)
Simonetti Joseph L., APU compartment drain system.
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