[go: up one dir, main page]

DE3923793A1 - Safety fuel line with double walled fuel pipes - has viewing window with catalyst covering reacting with fuel leaking from inner pipe by changing colour - Google Patents

Safety fuel line with double walled fuel pipes - has viewing window with catalyst covering reacting with fuel leaking from inner pipe by changing colour

Info

Publication number
DE3923793A1
DE3923793A1 DE19893923793 DE3923793A DE3923793A1 DE 3923793 A1 DE3923793 A1 DE 3923793A1 DE 19893923793 DE19893923793 DE 19893923793 DE 3923793 A DE3923793 A DE 3923793A DE 3923793 A1 DE3923793 A1 DE 3923793A1
Authority
DE
Germany
Prior art keywords
fuel
safety
viewing window
pipes
reacting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19893923793
Other languages
German (de)
Other versions
DE3923793C2 (en
Inventor
Joachim Reich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19893923793 priority Critical patent/DE3923793A1/en
Publication of DE3923793A1 publication Critical patent/DE3923793A1/en
Application granted granted Critical
Publication of DE3923793C2 publication Critical patent/DE3923793C2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Pipeline Systems (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The safety system for a double-walled fuel pipe contains a viewing window in the outer pipe. The intermediate space between the inner and outer fuel pipes is hermetically sealed. When a leak occurs in the pressure pipe the intermediate space between the inner and outer pipes is filled rapidly with fuel which reacts with a catalyst applied to the viewing window. The colour of the window is changed, thus indicating the presence of the leak. USE/ADVANTAGE - For use in fuel delivery system, e.g. for diesel fuel. Safety system enables leaks in pressure pipe to be detected immediately. Line need not be changed immediately on detection of leak since outer safety pipe forms closed unit.

Description

1. Sicherheitsbrennstoffleitung mit doppelwandigen Brennstoffrohren.1. Safety fuel line with double wall Fuel pipes.

2.1. Meine Sicherheitsbrennstoffleitung mit Schauglas basiert auf dem Grundprinzip der doppelwandigen Sicherheits­ brennstoffleitung. Gravierender Unterschied ist eigentlich nur das Schauglas zur Früherkennung von Leckagen im Druckrohr. Dieses Schauglas hat den Vorteil, daß Leckagen im Druckrohr sofort erkannt werden können, und die Sicherheits­ brennstoffleitung notfalls noch nicht sofort ausgewechselt zu werden braucht, da die Sicherheitsummantelung mit dem Schauglas eine geschlossene Einheit bildet.2.1. My safety fuel line with sight glass is based on the basic principle of double-walled security fuel line. There is a serious difference only the sight glass for early detection of leaks in the Pressure pipe. This sight glass has the advantage that leaks in the Pressure pipe can be recognized immediately, and the security if necessary, do not replace the fuel line immediately needs to be because the safety sheathing with the Sight glass forms a closed unit.

2.2. Die Funktionsweise der Sicherheitsbrennstoffleitung mit Schauglas ist denkbar einfach: Tritt z.B. eine Leckage am Druckrohr auf, so füllt sich zwangsläufig der Zwischenraum zwischen Druckrohr und Sicherheitsummantelung­ und anschließend das Schauglasgehäuse mit Brennstoff. Ist nun das Schauglasgehäuse überflutet, so gelangt das Dieselöl an den auf der Glasscheibe angebrachten Katalysator und dieser verfärbt sich - die Leckage wird von außen sichtbar.2.2. How the safety fuel line works with sight glass is very easy: e.g. a Leakage on the pressure pipe, so the inevitably fills up Space between the pressure pipe and the safety jacket and then the sight glass housing with fuel. If the sight glass housing is flooded, this happens Diesel oil attached to the glass pane Catalyst and this changes color - the leakage becomes visible from the outside.

Auf der Zeichnung zeigenShow on the drawing

Fig. 1 eine teilweise Seitenansicht einer Brennstoffleitung und Fig. 2 eine Ausschnittsvergrößerung in gegenüber Fig. 1 um 90 Grad versetzter Lage. Fig. 1 is a partial side view of a fuel line, and Fig. 2 shows an enlarged in comparison with FIG. 1 by 90 degrees offset position.

Claims (1)

Sicherheitssystem für doppelwandige Brennstoffrohre, dadurch gekennzeichnet, daß in dem äußeren Rohr ein Schauglas angeordnet ist und der Zwischenraum beider Rohre hermetisch abgeschlossen ist.Safety system for double-walled fuel pipes, characterized in that a sight glass is arranged in the outer pipe and the space between the two pipes is hermetically sealed.
DE19893923793 1989-07-14 1989-07-14 Safety fuel line with double walled fuel pipes - has viewing window with catalyst covering reacting with fuel leaking from inner pipe by changing colour Granted DE3923793A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893923793 DE3923793A1 (en) 1989-07-14 1989-07-14 Safety fuel line with double walled fuel pipes - has viewing window with catalyst covering reacting with fuel leaking from inner pipe by changing colour

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893923793 DE3923793A1 (en) 1989-07-14 1989-07-14 Safety fuel line with double walled fuel pipes - has viewing window with catalyst covering reacting with fuel leaking from inner pipe by changing colour

Publications (2)

Publication Number Publication Date
DE3923793A1 true DE3923793A1 (en) 1990-02-01
DE3923793C2 DE3923793C2 (en) 1992-08-20

Family

ID=6385314

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893923793 Granted DE3923793A1 (en) 1989-07-14 1989-07-14 Safety fuel line with double walled fuel pipes - has viewing window with catalyst covering reacting with fuel leaking from inner pipe by changing colour

Country Status (1)

Country Link
DE (1) DE3923793A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4208970A1 (en) * 1992-03-19 1993-09-23 Dietrich Dr Stein Detecting and locating leaks in pipes, e.g. sewage pipes, - using physical, chemical, biological and=or other analysis to determine leak origin and hazard

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010014868B4 (en) * 2010-04-13 2012-06-21 Reinhard Moskopp Device for detecting leaks in fluid-carrying lines

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1914888A1 (en) * 1968-04-04 1969-10-23 Buna Chem Werke Veb Production of polar unsaturated olefin copolymers by copolymerising 0-75% ethylene, 0-90% of a 1-olefin or mixtures of 1-olefins, 0.5-80% of unsaturated function
DE7507721U (en) * 1975-03-12 1975-09-18 Krafft Goebel Textilmaschinenbau LEAK OIL DISPLAY DEVICE FOR OIL HYDRAULIC SYSTEMS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1914888A1 (en) * 1968-04-04 1969-10-23 Buna Chem Werke Veb Production of polar unsaturated olefin copolymers by copolymerising 0-75% ethylene, 0-90% of a 1-olefin or mixtures of 1-olefins, 0.5-80% of unsaturated function
DE7507721U (en) * 1975-03-12 1975-09-18 Krafft Goebel Textilmaschinenbau LEAK OIL DISPLAY DEVICE FOR OIL HYDRAULIC SYSTEMS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4208970A1 (en) * 1992-03-19 1993-09-23 Dietrich Dr Stein Detecting and locating leaks in pipes, e.g. sewage pipes, - using physical, chemical, biological and=or other analysis to determine leak origin and hazard
DE4208970C2 (en) * 1992-03-19 1998-09-24 Dietrich Dr Stein Method and device for the detection and localization of leaks in sewers

Also Published As

Publication number Publication date
DE3923793C2 (en) 1992-08-20

Similar Documents

Publication Publication Date Title
US3713338A (en) Fiber optic liquid level indicator
CA2048667A1 (en) Opti-mechanical displacement indicator with high sensitivity
CA2132227A1 (en) High Pressure, Leak Resistant, Explosionproof Capacitance Probe
GB1178200A (en) Fluid Actuated Visual Indicator
AU517237B2 (en) Magnetic pressure indicator with thermal lockout
DE3923793A1 (en) Safety fuel line with double walled fuel pipes - has viewing window with catalyst covering reacting with fuel leaking from inner pipe by changing colour
DE7441596U (en) MEASURING INSTRUMENT
US3212334A (en) Sight glass protector
US3701284A (en) Pressure gauge
EP0198117B1 (en) Indicating optical liquid level sensor
GB875224A (en) Improvements in piping systems
US2744488A (en) Liquid flow indicator
US3323484A (en) Liquid flow sight assembly
US2087279A (en) Float-gauge
GB1348237A (en) Pressure gauges
US3520192A (en) Pressure gauge casing with telescoping elements
DE3535586C2 (en)
JPH08334395A (en) Angle velocity sensor
US3481304A (en) Indicators
US2514570A (en) Liquid level gauge
SU367441A1 (en) [•SHE IS
DE2114449C3 (en) Laser device for use in firedamp or explosion-endangered companies
EP0184698A3 (en) Bitubular hydraulic damper
US2268139A (en) Refractometer for liquids
KR790000473B1 (en) Opti-mechanical stress-strain indicator

Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OP8 Request for examination as to paragraph 44 patent law
8122 Nonbinding interest in granting licenses declared
8125 Change of the main classification

Ipc: F17D 5/02

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee