EP 0337048 B1 19901003 - RAILWAY MACHINE FOR VACUUM CLEANING A TRACK SUPERSTRUCTURE
Title (en)
RAILWAY MACHINE FOR VACUUM CLEANING A TRACK SUPERSTRUCTURE
Publication
Application
Priority
EP 88890092 A 19880413
Abstract (en)
1. A travelling on-track machine (1; 62) for cleaning permanent way, more especially the ballast surface of a ballast bed situated beneath a track panel formed by sleepers and rails, comprising a machine frame (6; 63) designed to travel on on-track under-carriages (5; 64) and a suction unit (11; 68) consisting of a suction head arrangement (16; 70) which is connected through a suction hose (12; 69) to a collecting container (13) with filter (14) and to a fan (15) and with which at least one pressure nozzle (21, 46; 75, 76) connected to an air compressor by a pressure hose (20; 74) is associated to form a substantially closed-loop pressure-suction system, characterized in that the pressure nozzle (21, 46; 75, 76) is arranged inside the suction mouth opening (17, 73) of the suction head arrangement (16; 70) and is connected by the pressure hose (20; 74) to the exhaust-air port (22) acting as air compressor and the suction head arrangement (16; 70) connected to the suction hose (12) is connected to the intake port (34) of the radial fan (15) connected to the suction head arrangement (16; 70) to form the pressure-suction system.
IPC 1-7
IPC 8 full level
E01B 19/00 (2006.01); E01B 27/10 (2006.01); E01H 1/08 (2006.01); E01H 1/10 (2006.01); E01H 8/00 (2006.01)
CPC (source: EP US)
E01B 27/102 (2013.01 - EP US); E01H 1/0863 (2013.01 - EP US); E01H 8/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0337048 A1 19891018; EP 0337048 B1 19901003; AT E57214 T1 19901015; AU 3268989 A 19891019; AU 613736 B2 19910808; BR 8901149 A 19891031; CA 1322299 C 19930921; DD 283849 A5 19901024; DE 3860755 D1 19901108; ES 2018718 B3 19910501; HU 203798 B 19910930; HU T52588 A 19900728; IN 171526 B 19921107; JP 2781002 B2 19980730; JP H0224401 A 19900126; PL 161304 B1 19930630; PL 278696 A1 19900108; US 4938239 A 19900703
DOCDB simple family (application)
EP 88890092 A 19880413; AT 88890092 T 19880413; AU 3268989 A 19890411; BR 8901149 A 19890307; CA 594319 A 19890321; DD 32750789 A 19890411; DE 3860755 T 19880413; ES 88890092 T 19880413; HU 140789 A 19890323; IN 304CA1989 A 19890420; JP 9427989 A 19890413; PL 27869689 A 19890407; US 32442489 A 19890315