DK153174B - SHELTER SEAL FOR A TURN PUMP PUMP, INSERT A VACUUM PUMP - Google Patents
SHELTER SEAL FOR A TURN PUMP PUMP, INSERT A VACUUM PUMP Download PDFInfo
- Publication number
- DK153174B DK153174B DK003984A DK3984A DK153174B DK 153174 B DK153174 B DK 153174B DK 003984 A DK003984 A DK 003984A DK 3984 A DK3984 A DK 3984A DK 153174 B DK153174 B DK 153174B
- Authority
- DK
- Denmark
- Prior art keywords
- pump
- chambers
- oil
- transmission
- piston
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C27/009—Shaft sealings specially adapted for pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Closures For Containers (AREA)
Description
iin
DK 153174 BDK 153174 B
Opfindelsen omhandler en akseltætning til en drejestempelpumpe, især en vakuumpumpe, og af den i krav l's indledning angivne art.The invention relates to a shaft seal for a piston pump, in particular a vacuum pump, and of the kind specified in the preamble of claim 1.
Tætningsanordningen skal dels forhindre en overgang 5 af transportgas til transmissionskammeret, især når der arbejdes mod overtryk, og dels forhindre en udsivning af olie fra transmissionskammeret, hvor den tjener til smøring af transmissionshjulene, til fortrængnings-kammeret .The sealing device must prevent, firstly, a transfer 5 of transport gas to the transmission chamber, especially when working against overpressure, and partly to prevent leakage of oil from the transmission chamber, where it serves to lubricate the transmission wheels, to the displacement chamber.
10 Til dette formål anvendes der glideringstætninger, som har en stor tætningsevne, kan fremstilles af kemisk bestandige materialer og har en lang levetid. Under drift kræver de dog skyllevæske, dels til bortledning af friktionsvarmen og dels til opbygning af en, om end 15 tynd oliefilm imellem glidefladerne.10 For this purpose, sliding seals are used which have a high sealing ability, can be made from chemically resistant materials and have a long life. However, during operation, they require rinsing fluid, partly to dissipate the frictional heat and partly to build up an, albeit 15 thin oil film between the sliding surfaces.
Fra tysk offentliggørelsesskrift nr. 3 007 267 er det kendt til en drejestempelpumpe med læbetætninger at anvende den i transmissionskammeret tilstedeværende olie til at frembringe og opretholde den påkrævede køle-20 og skyllevæskestrøm til tætningerne. Ved hjælp af en særskilt oliepumpe udtages olien fra sidekammeret i et særskilt kredsløb og føres igen tilbage til kompressoren i området ved læbetætningerne.From German Publication No. 3 007 267, it is known for a piston pump with lip seals to use the oil present in the transmission chamber to produce and maintain the required coolant and rinse fluid flow to the seals. By means of a separate oil pump, the oil is taken from the side chamber in a separate circuit and is again returned to the compressor in the area by the lip seals.
Denne udførelsesform er kostbar, idet den kræver instal-25 lation af en særskilt væskepumpe med særskilt drift og endvidere mindst én ekstra akseltætning ved oliepumpen .This embodiment is costly in that it requires the installation of a separate liquid pump with separate operation and furthermore at least one additional shaft seal at the oil pump.
Det samme gælder den fra britisk patentskrift nr. 734 893 kendte vingecellekompressor, der ikke kræver særlige 30 tætningsorganer mellem fortrængningskamrene og transmis sionskammeret, og hvor oliepumpen er fastboltet på kom-The same applies to the blade cell compressor known from British Patent No. 734,893, which does not require special sealing means between the displacement chambers and the transmission chamber, and where the oil pump is bolted to the compression chamber.
DK 153174 BDK 153174 B
2 pressorens yderside.2 exterior of the pressor.
Opfindelsen har til formål at afhjælpe disse ulemper.The invention has for its object to overcome these disadvantages.
Dette opnås ifølge opfindelsen ved den i krav l's kendetegnende del angivne udformning af akseltætningen. Herved 5 sparer man det særskilte oliekredsløb med en uden for drejestempelpumpen anbragt oliepumpe og motor.This is achieved according to the invention by the design of the shaft seal as defined in claim 1. This saves 5 the separate oil circuit with an oil pump and motor located outside the piston pump.
Oliepumpen kan hensigtsmæssigt anbringes som angivet i krav 2, da der i dette område kun kan ventes små ak-siale varmeudvidelser, selv ved en stærk opvarmning 10 af drejestempelpumpen.The oil pump may conveniently be positioned as claimed in claim 2, since in this area only small axial heat expansions can be expected, even with a strong heating 10 of the piston pump.
Ved den i krav 3 angivne konstruktion kan der opnås en yderst jævn fordeling for alle glideringstætningerne i pumpen. Drøvleorganet kan være en simpel blænder, og ved et passende valg af dennes åbningsdiameter kan 15 man opnå, at trykfordelingen i hele tilgangssystemet imellem oliepumpen og glideringstætningerne er på det nærmeste konstant, og at man ved samme valg af borings-diameteren i drøvleorganet kan forsyne alle glideringstætningerne med samme oliemængde.By the construction of claim 3, a very even distribution can be obtained for all the sliding seals in the pump. The throttle means can be a simple mixer, and by a suitable choice of its opening diameter, it can be achieved that the pressure distribution in the entire inlet system between the oil pump and the sliding seals is almost constant, and that at the same choice of the bore diameter in the throttle means all the sliding seals with the same amount of oil.
20 Ved den i krav 4 angivne konstruktion muliggøres en tilbagestrømning af en del af olien fra det ene transmissionskammer til det andet, i hvilket oliepumpen arbejder. Denne forbindelse kan tilvejebringes inden for eller uden for oliepumpen.In the construction of claim 4, a part of the oil is allowed to flow back from one transmission chamber to the other in which the oil pump operates. This connection can be provided inside or outside the oil pump.
25 Ved den i krav 5 angivne konstruktion opnås, at der forbliver tilstrækkelig væske i oliepumpen, og at der ved start af drejestempelpumpen umiddelbart efter indkoblingen også sker en påramning af glideringstætningerne med skyllevæske.The construction according to claim 5 achieves that sufficient liquid remains in the oil pump and that upon start of the piston pump immediately after switching on, the gliding seals with flushing liquid are also rammed.
30 Endelig er den i krav 6 angivne udformning fordelagtig,Finally, the configuration of claim 6 is advantageous,
DK 153174 BDK 153174 B
3 idet der i en sidekanalpumpes til- og afgangsledninger ikke behøver at anbringes tilsvarende afspærrings- eller kontraventiler, der senere er nødvendige til regelret drift af oliepumpen.3, since in the side channel pump supply and discharge lines there is no need to place corresponding shut-off or check valves, which are later required for regular operation of the oil pump.
5 Opfindelsen forklares nærmere'nedenfor i forbindelse med tegningen, hvor: fig. 1 viser et skematisk længdesnit igennem en dreje-stempelpumpe med en akseltætning ifølge opfindelsen, og 10 fig. 2 viser et tværsnit igennem drejestempelpumpen.5 The invention is further explained below in connection with the drawing, in which: FIG. 1 is a schematic longitudinal section through a rotary piston pump with a shaft seal according to the invention; and FIG. 2 shows a cross section through the piston pump.
Drejestempelpumpen omfatter aksler 1 og 2, på hvilke der er fastgjort drejestempler henholdsvis 3 og 4. Pumpens hus 5 afgrænser sammen med stemplerne 3 og 4 pumpens fortrængningskammer. Huset 3 har en indløbsstuds 15 6 og en udløbsstuds 7. På siderne af huset 5 er der skillevægge eller skillehuse 8 og 9 med lejer henholdsvis 10 og 11. Akselgennemføringerne imellem fortrængnings-kammeret og transmissionskamrene 12 og 13 er tætnet ved hjælp af glideringstætninger henholdsvis 14 og 15.The piston pump comprises shafts 1 and 2, on which pistons 3 and 4 are attached, respectively. The housing 3 has an inlet nozzle 15 6 and an outlet nozzle 7. On the sides of the housing 5 there are partitions or partitions 8 and 9 with bearings 10 and 11. The shaft passages between the displacement chamber and the transmission chambers 12 and 13 are sealed by means of sliding seals 14, respectively. and 15.
20 På den ene kompressoraksel er der ifølge opfindelsen anbragt en væskepumpe 16.20 On one compressor shaft, according to the invention, a liquid pump 16 is arranged.
Væskepumpens indsugningsstuds dykker ned i driftsolien.The suction pump of the liquid pump dives into the operating oil.
Olien tilføres over kanaler 17 og/eller ydre rørledninger 18 til glideringstætningskamrene.The oil is applied over ducts 17 and / or outer tubes 18 to the sliding seal chambers.
25 Transmissionskamrene 12 og 13 er indbyrdes forbundne gennem rørledninger eller kanaler 19 til udligning af væskestanden i de to transmissionskamre.The transmission chambers 12 and 13 are interconnected through pipelines or channels 19 to equalize the fluid level in the two transmission chambers.
I oliekredsløbet kan der indsættes en varmeveksler og tillige en oliebeholder. På fig. 1 er varmevekslerenA heat exchanger and an oil tank can be inserted into the oil circuit. In FIG. 1 is the heat exchanger
Claims (6)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3216990A DE3216990A1 (en) | 1982-05-06 | 1982-05-06 | ROLLING PISTON PUMP |
| DE3216990 | 1982-05-06 | ||
| PCT/EP1983/000116 WO1983004075A1 (en) | 1982-05-06 | 1983-05-03 | Seal for rotary piston pump |
| EP8300116 | 1983-05-03 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK3984A DK3984A (en) | 1984-01-05 |
| DK3984D0 DK3984D0 (en) | 1984-01-05 |
| DK153174B true DK153174B (en) | 1988-06-20 |
| DK153174C DK153174C (en) | 1988-12-12 |
Family
ID=6162896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK003984A DK153174C (en) | 1982-05-06 | 1984-01-05 | SHELTER SEAL FOR A TURN PUMP PUMP, INSERT A VACUUM PUMP |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0107691B1 (en) |
| JP (1) | JPS59500825A (en) |
| AU (1) | AU1516583A (en) |
| DE (2) | DE3216990A1 (en) |
| DK (1) | DK153174C (en) |
| ES (1) | ES271911Y (en) |
| IT (1) | IT1212953B (en) |
| NO (1) | NO834827L (en) |
| WO (1) | WO1983004075A1 (en) |
| ZA (1) | ZA833087B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4787831A (en) * | 1983-09-20 | 1988-11-29 | Air Products And Chemicals, Inc. | Dual seal system for roots blower |
| DE3344953A1 (en) * | 1983-12-13 | 1985-06-20 | Leybold-Heraeus GmbH, 5000 Köln | TWO-SHAFT VACUUM PUMP WITH GEARBOX EVACUATION |
| DE3540959A1 (en) * | 1984-12-22 | 1986-07-03 | Leybold-Heraeus GmbH, 5000 Köln | OIL DELIVERY DEVICE FOR VACUUM PUMPS |
| EP0198936B1 (en) * | 1985-04-24 | 1989-11-15 | Leybold Aktiengesellschaft | Multistage vacuum pump |
| DE102014101113A1 (en) * | 2014-01-30 | 2015-07-30 | Pfeiffer Vacuum Gmbh | vacuum pump |
| CN106930945B (en) * | 2015-12-29 | 2021-03-02 | 罗伯特·博世有限公司 | Pressure booster |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB217575A (en) * | 1923-06-11 | 1924-10-16 | Sulzer Ag | Improvements in or relating to rotary compressors |
| DE471012C (en) * | 1925-06-06 | 1929-03-19 | Der Maschinenfabriken Escher A | Device for sealing machines with rotating shafts, in particular intended for conveying gases and steams |
| DE684266C (en) * | 1937-01-01 | 1939-11-24 | Bosch Gmbh Robert | Control device for the charging fan of an internal combustion engine |
| US2178425A (en) * | 1937-02-18 | 1939-10-31 | Gen Electric | Refrigerating machine |
| US2620124A (en) * | 1946-12-26 | 1952-12-02 | Gen Motors Corp | Compressor apparatus |
| US2679412A (en) * | 1950-03-24 | 1954-05-25 | Read Standard Corp | Seal |
| US2677944A (en) * | 1950-12-01 | 1954-05-11 | Alonzo W Ruff | Plural stage refrigeration apparatus |
| GB734893A (en) * | 1953-05-28 | 1955-08-10 | Harry Skeet Broom | Improvements in or relating to rotary air compressors |
| US3292847A (en) * | 1964-11-03 | 1966-12-20 | Dresser Ind | Lubricant sealing means for rotary positive displacement pump |
| US3556697A (en) * | 1969-04-10 | 1971-01-19 | Ingersoll Rand Co | Sealing arrangement for vacuum pump |
| DE1939717B2 (en) * | 1969-08-05 | 1978-03-23 | Leybold-Heraeus Gmbh & Co Kg, 5000 Koeln | Meshing gear type air blower - has bearing lubrication permitting alternative mounting for horizontal or vertical air flow |
| GB1378543A (en) * | 1971-07-08 | 1974-12-27 | Borg Warner | Rotary compressor of sliding vane type |
| GB1552385A (en) * | 1975-05-13 | 1979-09-12 | Maekawa Seisakusho Kk | Device for compressing or expanding a gas or for pumping a liquid |
| DE3007267A1 (en) * | 1980-02-27 | 1981-09-03 | Leybold Heraeus Gmbh & Co Kg | Helical rotor type vacuum pump - has packed type seals on rotor shafts with liquid cooling |
-
1982
- 1982-05-06 DE DE3216990A patent/DE3216990A1/en not_active Withdrawn
-
1983
- 1983-05-02 ES ES1983271911U patent/ES271911Y/en not_active Expired
- 1983-05-02 ZA ZA833087A patent/ZA833087B/en unknown
- 1983-05-03 JP JP58501522A patent/JPS59500825A/en active Pending
- 1983-05-03 EP EP83901375A patent/EP0107691B1/en not_active Expired
- 1983-05-03 WO PCT/EP1983/000116 patent/WO1983004075A1/en active IP Right Grant
- 1983-05-03 DE DE8383901375T patent/DE3373202D1/en not_active Expired
- 1983-05-03 AU AU15165/83A patent/AU1516583A/en not_active Abandoned
- 1983-05-06 IT IT8309417A patent/IT1212953B/en active
- 1983-12-27 NO NO834827A patent/NO834827L/en unknown
-
1984
- 1984-01-05 DK DK003984A patent/DK153174C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ZA833087B (en) | 1984-01-25 |
| WO1983004075A1 (en) | 1983-11-24 |
| DE3373202D1 (en) | 1987-10-01 |
| DK3984A (en) | 1984-01-05 |
| ES271911Y (en) | 1985-02-16 |
| EP0107691A1 (en) | 1984-05-09 |
| DE3216990A1 (en) | 1983-11-10 |
| DK3984D0 (en) | 1984-01-05 |
| ES271911U (en) | 1984-08-01 |
| AU1516583A (en) | 1983-12-02 |
| IT1212953B (en) | 1989-12-07 |
| DK153174C (en) | 1988-12-12 |
| JPS59500825A (en) | 1984-05-10 |
| NO834827L (en) | 1983-12-27 |
| EP0107691B1 (en) | 1987-08-26 |
| IT8309417A0 (en) | 1983-05-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |