US3713461A - Seal rotary distribution valve - Google Patents

Seal rotary distribution valve Download PDF

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Publication number
US3713461A
US3713461A US00127189A US3713461DA US3713461A US 3713461 A US3713461 A US 3713461A US 00127189 A US00127189 A US 00127189A US 3713461D A US3713461D A US 3713461DA US 3713461 A US3713461 A US 3713461A
Authority
US
United States
Prior art keywords
ports
groove
grooves
means connecting
valve
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.)
Expired - Lifetime
Application number
US00127189A
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English (en)
Inventor
V Notelteirs
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.)
US Philips Corp
Original Assignee
US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3713461A publication Critical patent/US3713461A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/395—Filling vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
    • Y10T137/4358—Liquid supplied at valve interface
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/4456—With liquid valves or liquid trap seals
    • Y10T137/4621—Seal for relatively movable valving parts
    • Y10T137/4628—Horizontally moving valve
    • Y10T137/4636—Rotary
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86558—Plural noncommunicating flow paths

Definitions

  • ABSTRACT A distribution valve for a device for evacuating and filling a vessel with gas.
  • This valve comprises a rotatable part and a stationary part; the rotatable part having a number of ports which are connected to the vessels to be processed and the stationary part having a corresponding number of ports which are connected to the evacuating and filling apparatus.
  • a number of concentric circumferential grooves are provided in the confronting surfaces between the circumference and the center of the rotating and stationary parts. These grooves are maintained under a slight positive pressure by an inert gas supply.
  • the invention relates to a distribution valve for a device for evacuating and then filling with a halogencontaining gas, lamp or tube vessels for halogen lamps or halogen tubes, which valve mainly consists of two circular plates which are flat each on at least one side and which engage each other with their flat sides. During operation one plate is stationary while the other plate is capable of rotation.
  • the two plates comprise a number of parts which open out to the flat sides, the ports in the stationary plate being connected to evacuating and filling apparatus, the ports in the rotating plate communicating with ducts connecting the exhaust tube of the lamp vessel or tube vessel to be treated.
  • the flat side of the stationary plate comprise one or more lubricating grooves.
  • a distribution valve as described further comprises in the flat sides of the plate one or more circumferential grooves which can each communicate through an inlet duct with a duct or container containing an inert gas under pressure.
  • Each groove furthermore comprise an outlet duct which connects the groove with a space in which a lower pressure prevails than in the duct or the container.
  • an adjustable valve is present in the outlet duct, or the duct which communicates said outlet duct with the space.
  • a further embodiment of the invention is characterized in that at least two gas grooves are present, one of the said gas grooves being present near the circumference of the valve, a lubricating groove being present on either side of said gas groove. It has been found that a very good seal is obtained in this manner.
  • the assembly of lubricating grooves and intermediate gas grooves is present between the outer edge of the valve and the duct which can be made to communicate with the evacuating and filling apparatus.
  • FIG. 1 is a vertical cross-sectional view through a part of a device for evacuating and then filling with a halogen gas lamp vessels or tube vessels for halogen lamps or halogen tubes, comprising a distribution valve of which one part rotates
  • FIG. 2 is a plan view of the device shown in FIG. 1, taken on the line llII.
  • a distribution valve consists of a stationary part 1 and a rotating part 2 which parts bear on each other.
  • a plate 7 is secured, by means of screws 6, to a part 5 of the device which during operation is also stationary.
  • This plate 7 comprises a central pin 8 which extends in the part 1 of the valve and centers the said part perfectly.
  • a pressure plate 9 comprising pins 10 with compression springs 11.
  • Four projections 12 of the valve part 1 fit in grooves 13 of angle pieces 14 which are welded to the plate 5 so that rotation of the part 1 is impossible.
  • Ten regularly distributed apertures 15 in valve part 1 communicate with pipe sections 16 which partly communicate with vacuum pumps 17 shown diagrammatically partly with containers 17A containing a halogen-containing inert gas.
  • a top plate 18 of the device is connected to a plate by means of four columns 19 welded thereto, which plate 20 is connected to a ring 22 by means of screws 21.
  • the valve part 2 engages the said plate 20.
  • the ring 22 is connected, by the screws 21, to an inner ring 23 of a ball bearing with balls 24, an outer ring of which, constituted by the rings 25 and 26, is secured to the plate 5 by means of screws 27.
  • Setting screws 28 in the ring 22 center the valve part 2.
  • the valve part 2 comprises apertures 29 which, both as regards location and size, correspond to the apertures 15 in the valve part 2.
  • Welded to valve parts 2 and above the apertures 29 are tubes 30 which are bent on their upper side and in which bulbs 31 of lamps which are first to be evacuated and are then to be filled with a halogen-containing gas can be connected in an airtight manner.
  • valve part 1 On the side which engages the valve part 2, three shallow grooves extending concentrically with the pin 8 are provided which are filled with a grease which has a low vapor pressure and is suitable for vacuum application and which grooves thus ensure a seal between the two valve parts.
  • a groove 33 which communicates through a supply duct 34 with a container 35 containing a neutral gas, for example nitrogen, argon or krypton, under a slight positive pressure.
  • the groove 33 On the other side of the part 1, the groove 33 communicates, through an outlet duct 36, with an adjustable valve 37 which communicates at one end again with the container 38. By adjusting the valve 37, the pressure ratio between the gas in the container 35 and the gas in the container 38 can be controlled.
  • a groove 39 similar to grooves 33, is present on the inside of the wreath of apertures 15; this groove communicates through ducts and 41, respectively, with container 35 and valve 37, respectively.
  • the neutral gas in the grooves 33 and 39 obtains a slight flow towards the outside. This gas flow prevents air from coming between the flat valve parts 1 and 2 and ensures a perfect vacuum-tight seal of the space between the valve parts 1 and 2 which is as small as possible, (due to a finishing which is as accurate as possible).
  • the lubricating ducts 32 known per se prevent the dry operation of the valve. lf desirable, a central lubricating chamber may be provided.
  • a distribution valve for a device for evacuating and filling a vessel with another fluid comprising two circular plates having abutting surfaces, one of said circular plates being stationary and the other being rotatable about a common axis, said plates each having a plurality of ports at different angular locations around said axis and adapted to be aligned with each other upon relative rotation of the plates, means connecting the ports in the stationary plate to said evacuating and filling apparatus, means connecting the ports in the moving plate to the vessel, a plurality of circumferential grooves positioned in the surface of said stationary plate, a lubricant filling at least one of said grooves, means connecting a groove without lubricant therein to a supply of inert gas under pressure to fill said groove with inert gas, means connecting said gas filled groove to a container maintained at a pressure lower than that of said inert gas supply, thereby preventing air from entering said ports between the abutting surfaces of said circular plates.
  • a distribution valve as claimed in claim 1 further comprising an adjustable pressure valve in the means connecting said gas filled groove to said container.
  • a distribution valve as claimed in claim 1 comprising two of said gas filled grooves, one of said grooves being located near the circumference of said circular plates, said lubricating groove surrounding said gas filled groove near the circumference of said circular plates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Check Valves (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Multiple-Way Valves (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
US00127189A 1970-04-08 1971-03-23 Seal rotary distribution valve Expired - Lifetime US3713461A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7005063A NL7005063A (de) 1970-04-08 1970-04-08

Publications (1)

Publication Number Publication Date
US3713461A true US3713461A (en) 1973-01-30

Family

ID=19809805

Family Applications (1)

Application Number Title Priority Date Filing Date
US00127189A Expired - Lifetime US3713461A (en) 1970-04-08 1971-03-23 Seal rotary distribution valve

Country Status (5)

Country Link
US (1) US3713461A (de)
JP (1) JPS5222138Y2 (de)
FR (1) FR2089331A5 (de)
GB (1) GB1300685A (de)
NL (1) NL7005063A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906993A (en) * 1974-10-16 1975-09-23 Abex Corp Dual direction floating valve seat
US4026763A (en) * 1976-04-12 1977-05-31 The United States Energy Research And Development Administration Liquid-metal dip seal with pneumatic spring
US4078969A (en) * 1976-08-13 1978-03-14 The United States Government As Represented By The U. S. Department Of Energy Core disruptive accident margin seal
US5520209A (en) * 1993-12-03 1996-05-28 The Dow Chemical Company Fluid relief device
US20080223458A1 (en) * 2007-03-16 2008-09-18 Rajewski Robert C Tank vent pallet
US20130283756A1 (en) * 2012-04-30 2013-10-31 Stephanie M. Baker Manifold for gas turbine engine
US20160010550A1 (en) * 2013-06-06 2016-01-14 United Technologies Corporation Manifold for gas turbine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658853A (en) * 1985-01-09 1987-04-21 Regenerative Environmental Equipment Co., Inc. Anti-leak valving system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906993A (en) * 1974-10-16 1975-09-23 Abex Corp Dual direction floating valve seat
US4026763A (en) * 1976-04-12 1977-05-31 The United States Energy Research And Development Administration Liquid-metal dip seal with pneumatic spring
US4078969A (en) * 1976-08-13 1978-03-14 The United States Government As Represented By The U. S. Department Of Energy Core disruptive accident margin seal
US5520209A (en) * 1993-12-03 1996-05-28 The Dow Chemical Company Fluid relief device
US20080223458A1 (en) * 2007-03-16 2008-09-18 Rajewski Robert C Tank vent pallet
US20130283756A1 (en) * 2012-04-30 2013-10-31 Stephanie M. Baker Manifold for gas turbine engine
US9163717B2 (en) * 2012-04-30 2015-10-20 United Technologies Corporation Multi-piece fluid manifold for gas turbine engine
US20160010550A1 (en) * 2013-06-06 2016-01-14 United Technologies Corporation Manifold for gas turbine
US9957890B2 (en) * 2013-06-06 2018-05-01 United Technologies Corporation Manifold for gas turbine

Also Published As

Publication number Publication date
JPS4683U (de) 1971-11-05
DE2112905A1 (de) 1971-10-28
GB1300685A (en) 1972-12-20
FR2089331A5 (de) 1972-01-07
NL7005063A (de) 1971-10-12
JPS5222138Y2 (de) 1977-05-20
DE2112905B2 (de) 1976-07-01

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