EP 0700818 B1 19981209 - Pressure protection system
Title (en)
Pressure protection system
Title (de)
Druckschutzsystem
Title (fr)
Système de protection contre la surpression
Publication
Application
Priority
DE 4432277 A 19940909
Abstract (en)
[origin: EP0700818A1] The pressure protection system uses rapid-closure pressure protection valves (12,13) with a variable opening cross-section and bypass ventilators (10,11) in parallel with the pressure protection valves having a sharp characteristic gradient. Pref. the opening cross-section of the pressure protection valves is reduced when the railway carriage is sparsely occupied, to allow ingress of the required amount of fresh air, with rapid closure to prevent a pressure wave entering the carriageable, the parallel bypass providing a limited quantity of fresh air sufficient to maintain the air quality within the carriage. Pref. the ventilation is controlled by an electronic microcontroller.
IPC 1-7
IPC 8 full level
B61D 27/00 (2006.01)
CPC (source: EP KR)
B61D 27/00 (2013.01 - KR); B61D 27/0009 (2013.01 - EP)
Designated contracting state (EPC)
AT CH DE DK ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0700818 A1 19960313; EP 0700818 B1 19981209; AT E174276 T1 19981215; CN 1136517 A 19961127; DE 4432277 A1 19960314; DE 59504474 D1 19990121; DK 0700818 T3 19990816; ES 2126812 T3 19990401; FI 954227 A0 19950908; FI 954227 A 19960310; JP H08192742 A 19960730; KR 960010432 A 19960420
DOCDB simple family (application)
EP 95110470 A 19950705; AT 95110470 T 19950705; CN 95118424 A 19950907; DE 4432277 A 19940909; DE 59504474 T 19950705; DK 95110470 T 19950705; ES 95110470 T 19950705; FI 954227 A 19950908; JP 21613695 A 19950824; KR 19950026516 A 19950825