EP 0020508 B1 19820908 - SILENCER FOR PISTON ENGINE OF ON AIRCARFT
Title (en)
SILENCER FOR PISTON ENGINE OF ON AIRCARFT
Publication
Application
Priority
DE 2845902 A 19781021
Abstract (en)
[origin: WO8000861A1] The noise damping device for piston motors in aircrafts, which allows the simultaneous cooling of the exhaust gases, offers a square cross section and a variable configuration according to the direction of the exhaust. The exterior sheets (3, 4) converge towards the exhausts direction into an slot-like output aperture (7), whilst the lateral sheets (5, 6) diverge in the same direction so that the profile of the exterior sheets diverges and that of the lateral sheets converges. Perforated sheets (8, 9) are placed in parallel to and at a distance from the internal surfaces of the exterior converging sheets (3, 4) and comprise edges (8a, 9a) forming cooling chambers (10, 11) which are open towards the outlet aperture (7). The diverging lateral sheets (5, 6) can also be fitted with holes which open into lateral supplementary cooling chambers, which chambers are open towards the side of the outlet aperture.
IPC 1-7
IPC 8 full level
F01N 1/08 (2006.01); F01N 13/00 (2010.01); F01N 13/20 (2010.01)
CPC (source: EP US)
F01N 1/08 (2013.01 - EP US); F01N 13/20 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH FR GB NL SE
DOCDB simple family (publication)
WO 8000861 A1 19800501; AT E1530 T1 19820915; BR 7908869 A 19810630; DE 2845902 A1 19800424; DE 2845902 C2 19850530; EP 0020508 A1 19810107; EP 0020508 B1 19820908; JP S55500832 A 19801023; US 4315560 A 19820216
DOCDB simple family (application)
DE 7900124 W 19791022; AT 79901368 T 19791022; BR 7908869 A 19791022; DE 2845902 A 19781021; EP 79901368 A 19800507; JP 50176679 A 19791022; US 22422680 A 19800621