Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
  • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
  • F02C7/20—Mounting or supporting of plant; Accommodating heat expansion or creep
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
  • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
  • F01D25/08—Cooling; Heating; Heat-insulation
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
  • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
  • F01D25/08—Cooling; Heating; Heat-insulation
  • F01D25/14—Casings modified therefor
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
  • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
  • F01D25/18—Lubricating arrangements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
  • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
  • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
  • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
  • F02C7/24—Heat or noise insulation
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
  • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
  • F05D2260/00—Function
  • F05D2260/30—Retaining components in desired mutual position
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T50/00—Aeronautics or air transport
  • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Definitions

• Assembly comprising a protection device and an element of a turbomachine to be protected
• the present invention relates to an assembly comprising a protection device, for example a thermal protection device, and an element of a turbomachine to be integrated, such as for example an oil tank equipped with a magnetic particle detector.
• a protection device for example a thermal protection device
• an element of a turbomachine to be integrated such as for example an oil tank equipped with a magnetic particle detector.
• Such an oil reservoir equips a turbomachine and is hooked on the fan casing to supply oil to moving parts to be lubricated such as bearings or gears.
• This oil reservoir is conventionally equipped with a magnetic particle detector to determine if such particles have been released into the oil circuit by lubricated parts. The quantity and nature of the magnetic particles are detected in order to determine the origin and the criticality of the observed wear.
• the oil reservoir and the magnetic particle detector must be able to withstand fire in case of fire. In particular, they must be able to withstand a temperature of about 1200 ° C for a period of 5 to 6 minutes.
• thermal protection cover which is placed on and at least partially encloses the tank and the detector.
• the cover comprises eyelets intended to be engaged on fixing studs, eyelets and studs being provided on the cover, said studs having holes in which are engaged brake wires after closure of the cover. These brake wires are then crimped to prevent any accidental opening of the brake wires and therefore any removal of the cover.
• an operator cuts each of the brake wires so as to be able to remove the cover and have access to the reservoir and the vehicle. particle detector. Parts of brake wires can then fall on the tarmac.
• the invention aims in particular to provide a simple, effective and economical solution to this problem.
• an assembly comprising a protection device and an element of a turbomachine to be protected, such as for example an oil tank equipped with a magnetic particle detector, the protective device comprising a flexible cover protection device, placed and closed on the element to be protected and comprising eyelets engaged on fixing studs provided on the cover or on the element to be protected, characterized in that the protection device comprises at least one cable carrying means anchoring on the fixing studs so as to prevent their withdrawal from the eyelets of the cover.
• the attachment means and maintain the cover in position on the fastening means.
• the attachment means comprise pins or spiral rings having branches or portions intended to pass through the holes of the element fixing means.
• the cable comprises end loops in which engaging means are engaged.
• mobile attachment means are movable on the cable whose end loops or means latching engaged in said loops form abutments preventing the removal of the mobile hooking means out of the cable.
• the mobile attachment means can thus be easily moved along the cable, to facilitate their mounting on the fastening means.
• the protection device comprises at least two cables connected to one another by means of a hooking means.
• the hooking means serving as a connection between the cables can remain mounted on a fixing means of the element to be protected. Thus, during a maintenance operation, the cables and the attachment means are always attached to the element to be protected.
• the cable is made by braiding wires and is surrounded by a sheath, for example a heat-shrinkable sheath.
• a braided cable has greater flexibility than a non-braided cable.
• the sheath prevents an operator from getting injured in case of wear of the braided cable or with the ends of the loops.
• the cable and the attachment means are made of stainless steel.
• the invention also relates to a turbomachine comprising an assembly according to one of the preceding claims, wherein the element to be protected is an oil reservoir equipped with a magnetic particle detector.
• FIG. 1 is a schematic view of a part of a tank equipped with a particle detector, covered by a protection device according to the invention
• FIG. 2 is a view of the cables and the attachment means
• - Figure 3 is an enlarged view of a portion of Figure 2 showing two cables connected by a hooking means.
• FIG. 1 An embodiment of the invention will now be described with reference to Figure 1 showing an oil tank 1 equipped with a magnetic particle detector (not visible), covered in part by a flexible thermal protection blanket 2 placed and closed on the tank 1 and on the detector. Once closed, the cover 2 includes overlapping areas. Alternatively, the flexible cover 2 could be used for protection against dust or shock, for example.
• the cover 2 comprises openings formed by eyelets 3, serving for the passage of fixing studs 4 provided on the cover 2, and openings 14 for the connection of hydraulic lines and harnesses, that is to say cables electric.
• the pads 4 may be provided on the oil reservoir 1 and / or on the magnetic particle detector.
• the eyelets 3 and the studs 4 are arranged facing each other, in the covering areas of the cover 2.
• the studs 4 have through-holes and perpendicular to the axis of the studs 4, in which engaging means are formed formed by pins 5.
• each pin 5 consists of a stainless steel wire folded to form two branches 6, 7 connected at one end to a loop 8 made by winding the wire and forming a spring torsion between the branches 6, 7.
• This torsion spring 8 makes it possible to constrain the branches 6, 7 of the pin 5 so as to move them away from each other.
• the free end of the branch 7 comprises a hook 9 formed by folding the wire and intended to receive the free end of the branch 6 when the branches 6, 7 are close together, c ' that is to say in the closed position of the pin 5.
• the torsion spring 8 makes it possible to avoid the disengagement of the free end of the branch 6 out of the hook 9 of the branch 7, and thus to prevent accidental opening of the pin 5.
• the length of the branches 6, 7 is greater than the diameter of the studs 4 or the diameter of the eyelets 3.
• this pin 5 is identical to that of a safety pin.
• each pin 5 In the attachment position, the branch 6 of each pin 5 is engaged in a hole of a stud 4, the pins 5 being closed.
• the branches 6 thus form stop means preventing the withdrawal of the studs
• the pins 5 could be replaced by spiral rings also passing through the holes of the studs 4.
• the pins 5 are all attached to one or more cables 10, 1 1. In the embodiment shown in the figures, some of the pins 5 are attached to a first cable 10 and the other pins 5 are attached to a second cable 11.
• the cables 10, 1 1 are made by braiding stainless steel son and are surrounded by protective sheaths of plastic material, for example heat-shrinkable material.
• Each cable 10, 1 1 comprises end loops 12 crimped by sleeves 14 of stainless steel, pins 5 being engaged by their torsion springs 8 in the loops 12.
• pins 5 said mobile, are movably mounted on the cables 10, 1 1 whose sleeves 13 or pins 5 attached to the loops 12 form stops preventing the removal of the pins
• Each pin 5 is threaded onto the corresponding cable 10, 1 1 by its closed loop forming the torsion spring 8.
• the pins 5 are all mounted captively on one of the cables 10, 1 1.
• the two cables 10, 1 1 are connected to each other by a connecting pin 13, intended to remain on a corresponding pad 4 during access to the particle detector.
• the structure of the connecting pin is identical to that of the other pins.
• the connecting pin 13 could be replaced by a spiral ring.
• the thermal protection blanket 2 can be opened to release access to the particle detector.
• the operator can then replace the cover 2 around the tank 1 and the particle detector. For this purpose, he puts the eyelets 3 on the corresponding pads 4, then hangs again the pins 5 on the studs 4, by inserting the branches 6 in the holes of the studs 4 and by closing the pins 5.
• the cover is securely attached to the reservoir 1 and the particle detector. Note that the cables 10, 1 1 and pins 5 are captive, even when accessing the particle detector, and are not likely to fall to the ground since the pin 13 remains attached to the cover 2.
• the invention thus proposes a thermal protection device avoiding accidental degradation of the tires of aircraft or turbomachines, as indicated above.

Applications Claiming Priority (2)

Publications (1)

Family

ID=46197591

Family Applications (1)

Country Status (9)

Citations (6)

Family Cites Families (19)

• 2011
  • 2011-04-28 FR FR1153635A patent/FR2974596B1/fr active Active
• 2012
  • 2012-04-13 US US14/111,957 patent/US9506404B2/en active Active
  • 2012-04-13 CA CA2831484A patent/CA2831484A1/fr not_active Abandoned
  • 2012-04-13 RU RU2013152740/06A patent/RU2013152740A/ru not_active Application Discontinuation
  • 2012-04-13 WO PCT/FR2012/050821 patent/WO2012146856A1/fr active Application Filing
  • 2012-04-13 BR BR112013024619-7A patent/BR112013024619A2/pt not_active IP Right Cessation
  • 2012-04-13 CN CN201280020051.XA patent/CN103502581B/zh not_active Expired - Fee Related
  • 2012-04-13 EP EP12724666.8A patent/EP2702252A1/de not_active Withdrawn
  • 2012-04-13 JP JP2014506917A patent/JP2014517891A/ja not_active Ceased

Patent Citations (6)

Non-Patent Citations (1)

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