NO124427B - - Google Patents
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- Publication number
- NO124427B NO124427B NO0407/69A NO40769A NO124427B NO 124427 B NO124427 B NO 124427B NO 0407/69 A NO0407/69 A NO 0407/69A NO 40769 A NO40769 A NO 40769A NO 124427 B NO124427 B NO 124427B
- Authority
- NO
- Norway
- Prior art keywords
- holes
- disc
- disk
- valve
- control valve
- Prior art date
Links
- 238000009423 ventilation Methods 0.000 claims description 9
- 230000007423 decrease Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/321—Bearings or seals specially adapted for propeller shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/08—Attachment of brasses, bushes or linings to the bearing housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/50—Positive connections
- F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/30—Ships, e.g. propelling shafts and bearings therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Sealing Of Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
- Details Of Valves (AREA)
- Sliding-Contact Bearings (AREA)
Description
Luftreguleringsventil. Air control valve.
Oppfinnelsen angår en luftreguleringsventil, særlig for anvendelse i høytrykks-ventilasjonsanlegg, og bestående av en hullskive og en i forhold til denne dreibar stengeskive med utsparinger. The invention relates to an air control valve, particularly for use in high-pressure ventilation systems, and consisting of a perforated disc and a closing disc with recesses which can be rotated in relation to this.
For lavtrykksventilasjonsanlegg er der kjent ventiler av den ovennevnte type, hvor skivens hull tilnærmelsesvis har form av sirkelsektorer og den dreibare stengeskive har utsparinger av tilsvarende form, og hvor der mellom denne siste skives utsparinger finnes ugjennombrudte deler, som ved ventilens lukning bringes til å overlappe hullene i skiven ved dreining av stengeskiven. Etterhvert som skivens hull blir dekket av stengeskiven, vil hullene forminskes, hvorved vedkommende ventil, såfremt den anvendes i et høytrykks-ventilasjonsanlegg, vil ha en støykurve som viser en stigende tendens ved be-gynnende lukning, hvoretter støyen avtar analogt med gjennomstrømningsmengden. For low-pressure ventilation systems, valves of the above-mentioned type are known, where the disc's holes are approximately in the shape of circular sectors and the rotatable closing disc has recesses of a similar shape, and where between the latter disc's recesses there are unpierced parts, which when the valve is closed are brought to overlap the holes in the disc when turning the closing disc. As the disc's hole is covered by the closing disc, the holes will be reduced, whereby the valve in question, if it is used in a high-pressure ventilation system, will have a noise curve that shows an increasing tendency at the beginning of closing, after which the noise decreases analogously to the flow rate.
Hensikten med den foreliggende opp-finnelse er å skaffe en luftreguleringsventil som arbeider med konstant trykkdifferanse og konstant gjennomstrømnings-hastighet uansett om ventilen er helt eller delvis åpen. Ved en slik ventil vil ventil-støyen avta lineært med minskningen av gjennomstrømningsmengde, i motsetning til hva som er tilfelle ved de ovennevnte, kjente ventiler. The purpose of the present invention is to provide an air control valve that works with a constant pressure difference and a constant flow rate regardless of whether the valve is fully or partially open. With such a valve, the valve noise will decrease linearly with the reduction in flow rate, in contrast to what is the case with the above-mentioned, known valves.
Luftreguleringsventilen er ifølge oppfinnelsen karakterisert ved at hullene er anbragt i én eller flere grupper, og at hver av stengeskivens utsparinger svarer til en hullgruppe. En ventil av denne type vil kunne innstilles for å arbeide med konstant trykkdifferanse og konstant gjen-nomstrømningshastighet ved at endel av hullene i hver gruppe tildekkes ved dreining av stengeskiven. Som følge av dette vil ventilstøyen avta lineært med den gjennomstrømmende mengde. According to the invention, the air control valve is characterized in that the holes are arranged in one or more groups, and that each of the recesses in the closing disc corresponds to a group of holes. A valve of this type can be set to work with a constant pressure difference and constant flow rate by covering part of the holes in each group by turning the shut-off disc. As a result, the valve noise will decrease linearly with the amount flowing through.
Ventilen ifølge oppfinnelsen kan anvendes til flere forskjellige formål, men er særlig tenkt anvendt i forbindelse med høytrykksventilasjonsanlegg, hvor det ofte er nødvendig å holde et nogenlunde konstant trykk i et ledningsløp, uansett hvil-ken luftmengde som avtas på forskjellige steder av ledningsløpet, eller i forbindelse med innblåsningsenheter, hvor man ønsker konstant trykk i innblåsningsdysene ved varierende luftmengde. The valve according to the invention can be used for several different purposes, but is particularly intended to be used in connection with high-pressure ventilation systems, where it is often necessary to maintain a fairly constant pressure in a conduit run, regardless of the amount of air that is taken off at different places in the conduit run, or in connection with blow-in units, where you want constant pressure in the blow-in nozzles with varying amounts of air.
For å skaffe en noenlunde symmetrisk strømning i det ledningsløp ventilen er anbragt i kan skiven ifølge oppfinnelsen hen-siktsmessig være forsynt med to grupper av hull, som hver er fordelt over en sirkelsektor i skiven på 90°. I dette tilfelle må stengeskiven ha form av to sirkelsektorer, hver på 90°, for å kunne dekke hullgrup-pene. In order to obtain a fairly symmetrical flow in the conduit in which the valve is placed, the disk according to the invention can be appropriately provided with two groups of holes, each of which is distributed over a circular sector of the disk at 90°. In this case, the closing disc must have the shape of two circular sectors, each at 90°, in order to cover the hole groups.
Da gjennomstrømningsarealet består av et stort antall kanaler med lite areal, virker ventilen som brannsikring i tilfelle av brann, idet flammene ikke vil kunne trenge igjennom hullskiven. Ennvidere vil røk bare i små mengder kunne trenge gjennom hullplaten, og som følge herav fra én ventilasjonsenhet til en annen, idet gjen-nomstrømningsmotstanden i hullplaten er meget stor i forhold til de trykkdiffe-ranser som vanligvis kan forekomme i ventilasjonskanaler i bygninger i tilfelle av brann når alle ventilatorer er stanset. As the flow area consists of a large number of channels with a small area, the valve acts as fire protection in the event of a fire, as the flames will not be able to penetrate the perforated disc. Furthermore, smoke will only be able to penetrate in small quantities through the perforated plate, and as a result from one ventilation unit to another, as the flow resistance in the perforated plate is very large in relation to the pressure differences that can usually occur in ventilation ducts in buildings in the event of fire when all ventilators are stopped.
For å lette reguleringen av trykkfallet gjennom de enkelte hull kan hullskiven ifølge oppfinnelsen være sammensatt - av flere på hinannen liggénde tynne skiver, slik at forholdet mellom hullenes areal .og lengde kan forandres vilkårlig. In order to facilitate the regulation of the pressure drop through the individual holes, the perforated disk according to the invention can be composed of several thin disks lying on top of each other, so that the ratio between the area and length of the holes can be changed arbitrarily.
Oppfinnelsen vil i det følgende bli-forklart nærmere under henvisning til tegningen. Fig. 1 viser en luftventilasjonsventil ifølge oppfinnelsen, sett forfra. Fig. 2 er et loddrett snitt etter linjen II—II på fig. 1, og fig. 3 og 4 en hullskive som inngår i den siste ventil, sett henholdsvis forfra og fra siden. På tegningen betegner 1 en rørstuss, som langs sin omkrets er forsynt med en flens 2 til festing av stussen f. eks. i en ventilasjonskanal. Til den ene ende av rørstussen 1 er der fastgjort en hullskive 3, og utenpå denne er der dreibart lagret en stengeskive 4. Skivene 3 og 4 holdes sam-men av en bolt 5, som går. gjennom et hull i hullskiven 3, og som er skrudd fast i en sentral ansats 6 på stengeskiven 4. Skivene 3 og 4 holdes trykket mot hverandre ved hjelp av en skruefjær 7, som er innspent mellom skiven 3 og hodet av bolten 6. Til dreining av stengeskiven 4 anvendes der en aksel 8, som med en bøyle 9 er festet til to ansatser 10 på skiven 4 ved skruer 11. I den stilling av ventilen som er vist på . fig. 1 dekker stengeplaten 4 hullene 12 (fig. 3) i skiven 3, og ventilen er således lukket. Stengeskiven 4 består av to deler som er utformet som diametralt motstå-ende sirkelsektorer, hver på 90°. Ved drei ning av skiven 4 90° fra den stilling som The invention will be explained in more detail below with reference to the drawing. Fig. 1 shows an air ventilation valve according to the invention, seen from the front. Fig. 2 is a vertical section along the line II—II in fig. 1, and fig. 3 and 4 a perforated disc which is part of the last valve, seen respectively from the front and from the side. In the drawing, 1 denotes a pipe spigot, which along its circumference is provided with a flange 2 for attaching the spigot, e.g. in a ventilation duct. A perforated disc 3 is attached to one end of the pipe socket 1, and on the outside of this a closing disc 4 is rotatably mounted. The discs 3 and 4 are held together by a bolt 5, which moves. through a hole in the perforated disc 3, and which is screwed into a central projection 6 on the locking disc 4. The discs 3 and 4 are kept pressed against each other by means of a coil spring 7, which is clamped between the disc 3 and the head of the bolt 6. For turning of the closing disc 4 is used where a shaft 8, which is attached with a hoop 9 to two projections 10 on the disc 4 by screws 11. In the position of the valve shown on . fig. 1, the closing plate 4 covers the holes 12 (fig. 3) in the disc 3, and the valve is thus closed. The closing disk 4 consists of two parts which are designed as diametrically opposed circular sectors, each at 90°. When turning ning of the disk 4 90° from the position which
er vist på fig. 1, vil samtlige hull 12 i skiven 3 bli blottlagt så ventilen blir helt åpen. is shown in fig. 1, all holes 12 in disc 3 will be exposed so that the valve is completely open.
På fig. 3 er hullskiven 3 vist i måle-stokk 1 : 1, og de viste hull har en diameter på 4 mm. I hver av de to hullgrupper fin-nes der 67 hull i en sirkelsektor med radius ca. 60 mm. Tykkelsen av hullplaten 3 er 35 mm, slik at forholdet mellom arealet og lengden av hullene er ca. 0,36 mm. In fig. 3, the perforated disk 3 is shown on a 1:1 scale, and the holes shown have a diameter of 4 mm. In each of the two hole groups, there are 67 holes in a circular sector with a radius of approx. 60 mm. The thickness of the perforated plate 3 is 35 mm, so that the ratio between the area and the length of the holes is approx. 0.36 mm.
På tegningen er hullskiven 3 vist ut-ført i ett stykke. Imidlertid kan denne skive være sammensatt av flere tynne utstansede metallplater, anbragt ovenpå hverandre, slik at den ferdige skives tykkelse og der-med lengden av hullene kan reguleres ved bruk av et større eller mindre antall tynne ulåter. In the drawing, the perforated disc 3 is shown in one piece. However, this disk can be composed of several thin punched metal plates, placed on top of each other, so that the thickness of the finished disk and with it the length of the holes can be regulated by using a greater or lesser number of thin blanks.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5755/68A GB1262271A (en) | 1968-02-05 | 1968-02-05 | Ship tail-shaft bearing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO124427B true NO124427B (en) | 1972-04-17 |
Family
ID=9802065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO0407/69A NO124427B (en) | 1968-02-05 | 1969-02-04 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3587509A (en) |
| JP (1) | JPS491424B1 (en) |
| BR (1) | BR6906152D0 (en) |
| DE (1) | DE1905329A1 (en) |
| ES (1) | ES363054A1 (en) |
| FI (1) | FI50855C (en) |
| FR (1) | FR2001346A1 (en) |
| GB (1) | GB1262271A (en) |
| NL (1) | NL6901736A (en) |
| NO (1) | NO124427B (en) |
| SE (1) | SE355849B (en) |
| SU (1) | SU407440A3 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3653350A (en) * | 1970-12-04 | 1972-04-04 | Waukesha Bearings Corp | Pressure balancing oil system for stern tubes of ships |
| AU503985B2 (en) * | 1975-07-07 | 1979-09-27 | Crane Packing Ltd. | Steen seat for ships |
| JPS5245616U (en) * | 1976-08-25 | 1977-03-31 | ||
| CA1227951A (en) * | 1983-10-21 | 1987-10-13 | Burrard Yarrows Corporation | Tailshaft inspection method |
| FR2816008B1 (en) | 2000-10-27 | 2003-02-07 | Renault | FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINE |
| RU2382717C1 (en) * | 2008-10-15 | 2010-02-27 | Владислав Васильевич Набоков | Ship's bearing of propeller shaft |
-
1968
- 1968-02-05 GB GB5755/68A patent/GB1262271A/en not_active Expired
-
1969
- 1969-01-27 US US794072*A patent/US3587509A/en not_active Expired - Lifetime
- 1969-01-29 ES ES363054A patent/ES363054A1/en not_active Expired
- 1969-01-31 FI FI690308A patent/FI50855C/en active
- 1969-02-03 SE SE01413/69A patent/SE355849B/xx unknown
- 1969-02-04 NL NL6901736A patent/NL6901736A/xx unknown
- 1969-02-04 FR FR6902487A patent/FR2001346A1/fr not_active Withdrawn
- 1969-02-04 JP JP44007878A patent/JPS491424B1/ja active Pending
- 1969-02-04 DE DE19691905329 patent/DE1905329A1/en active Pending
- 1969-02-04 NO NO0407/69A patent/NO124427B/no unknown
- 1969-02-05 SU SU1301790A patent/SU407440A3/ru active
- 1969-02-05 BR BR206152/69A patent/BR6906152D0/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS491424B1 (en) | 1974-01-14 |
| GB1262271A (en) | 1972-02-02 |
| SE355849B (en) | 1973-05-07 |
| BR6906152D0 (en) | 1973-02-20 |
| ES363054A1 (en) | 1970-12-01 |
| FR2001346A1 (en) | 1969-09-26 |
| NL6901736A (en) | 1969-08-07 |
| SU407440A3 (en) | 1973-11-21 |
| FI50855B (en) | 1976-04-30 |
| US3587509A (en) | 1971-06-28 |
| DE1905329A1 (en) | 1969-09-11 |
| FI50855C (en) | 1976-08-10 |
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