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dispositif de tenue aux ondes de pression

English translation: pressure wave proofing/protection/valve system


GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
French term or phrase:dispositif de tenue aux ondes de pression
English translation:pressure wave proofing/protection/valve system
Entered by: Stephanie Mitchel
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23:13 Nov 5, 2009Login or register (free) for more options.
French to English translations [PRO]
Tech/Engineering - Transport / Transportation / Shipping / guide to writing manuals for train equipment
French term or phrase: dispositif de tenue aux ondes de pression
This term appears as shown, in a list under CLIMATISATION MOTRICE ET REMORQUE. No further context is provided. I've worked it out to a device that maintains something using pressure waves, but I don't know what it maintains. Thanks for any help you can provide.
Stephanie Mitchel
United States
Local time: 09:01
pressure wave proofing/protection/valve system
Explanation:
In order to protect the passengers against the aerodynamic compressive impacts occurring in tunnels PRESSURE WAVE VALVES and pressure protecting fans are integrated into the supply and exhaust air ducts of the air-conditioning system.
http://www.de.alstom.com/home/DE_HomeLeft/ALSTOM_in_Germany/...

The effects of pressure waves when trains pass each other or enter a tunnel can be uncomfortable for passengers. FAIVELEY TRANSPORT, France, offers PRESSURE-WAVE PROOFING with a quick-valve air-conditioning system that blocks ventilation inlets and an inflatable seal solution that guarantees perfect door tightness
http://goliath.ecnext.com/coms2/gi_0199-1150464/InnoTrans-th...

This invention relates to a process and apparatus for regulating quantities of fresh air in high-speed trains by means of PRESSURE-WAVE VALVES. ...
www.patentstorm.us/patents/5462481/description.html

PRESSURE PROTECTION SYSTEM
The PRESSURE-WAVE VALVES close the openings in a fraction of a second and have two tasks:
• First, they prevent pressure waves from entering the train (pressure waves occur when two trains meet each other and when trains enter tunnels at high speed). This system avoids a sudden pressure rise inside the train, which can be an unpleasant experience for passengers.
• Second, they close all the intake and outlet openings in the event of smoke appearing outside the train.
http://www.FAIVELEY.de/engl/produkte/klima-hgv/klima-hgv_03....

Selected response from:

Bourth
France
Local time: 16:01
Grading comment
Thanks all!
4 KudoZ points were awarded for this answer



Summary of answers provided
4pressure wave proofing/protection/valve system
Bourth
3pressure wave stabilizermediamatrix


Discussion entries: 2





  

Answers


1 hr   confidence: Answerer confidence 3/5Answerer confidence 3/5
pressure wave stabilizer


Explanation:
I'm inclined to agree with Tony's comments in the discussion box - this probably concerns the stabilization/regulation of the A/C system in the presence of the pressure waves that occur when a train (especially a high-speed train) enters/leaves a tunnel. Lots of webrefs such as these:

Blind hood effects on the compression wave generated by a train ... - [ Traducir esta página ]
The micro-pressure wave is similar to the aeronautical sonic boom and caused ... allowed the determination of train acceleration and speed stabilization. ... 1/4 in. microphone associated with a conditioner amplifier Nexus type 2690 0S4. ..... train nose and by a decrease in the mass of air ejected from the tunnel. ...
linkinghub.elsevier.com/retrieve/pii/S0894177701000887 - Similares
de M Bellenoue - 2001 - Citado por 7 - Artículos relacionados

mediamatrix
Chile
Local time: 12:01
Native speaker of: Native in EnglishEnglish
PRO pts in category: 38
Login to enter a peer comment (or grade)

9 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
pressure wave proofing/protection/valve system


Explanation:
In order to protect the passengers against the aerodynamic compressive impacts occurring in tunnels PRESSURE WAVE VALVES and pressure protecting fans are integrated into the supply and exhaust air ducts of the air-conditioning system.
http://www.de.alstom.com/home/DE_HomeLeft/ALSTOM_in_Germany/...

The effects of pressure waves when trains pass each other or enter a tunnel can be uncomfortable for passengers. FAIVELEY TRANSPORT, France, offers PRESSURE-WAVE PROOFING with a quick-valve air-conditioning system that blocks ventilation inlets and an inflatable seal solution that guarantees perfect door tightness
http://goliath.ecnext.com/coms2/gi_0199-1150464/InnoTrans-th...

This invention relates to a process and apparatus for regulating quantities of fresh air in high-speed trains by means of PRESSURE-WAVE VALVES. ...
www.patentstorm.us/patents/5462481/description.html

PRESSURE PROTECTION SYSTEM
The PRESSURE-WAVE VALVES close the openings in a fraction of a second and have two tasks:
• First, they prevent pressure waves from entering the train (pressure waves occur when two trains meet each other and when trains enter tunnels at high speed). This system avoids a sudden pressure rise inside the train, which can be an unpleasant experience for passengers.
• Second, they close all the intake and outlet openings in the event of smoke appearing outside the train.
http://www.FAIVELEY.de/engl/produkte/klima-hgv/klima-hgv_03....



Bourth
France
Local time: 16:01
Works in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 380
Grading comment
Thanks all!
Login to enter a peer comment (or grade)




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