CA1285849C - Valve component for a frictionless guided valve - Google Patents
Valve component for a frictionless guided valveInfo
- Publication number
- CA1285849C CA1285849C CA000525738A CA525738A CA1285849C CA 1285849 C CA1285849 C CA 1285849C CA 000525738 A CA000525738 A CA 000525738A CA 525738 A CA525738 A CA 525738A CA 1285849 C CA1285849 C CA 1285849C
- Authority
- CA
- Canada
- Prior art keywords
- guide member
- valve closure
- closure member
- valve
- plate
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1053—Adaptations or arrangements of distribution members the members being Hoerbigen valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Check Valves (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Magnetically Actuated Valves (AREA)
- Forging (AREA)
- Compressor (AREA)
- Sliding Valves (AREA)
- Valve Housings (AREA)
- Fluid-Driven Valves (AREA)
Abstract
ABSTRACT
A VALVE COMPONENT FOR A FRICTIONLESS GUIDED VALVE
A composite valve plate for use in a plate-type non-return valve comprises an outer valve closure member (8) having a central aperture (9) and a planar guide member (1) locatable in said central aperture (9) and being capable of providing frictionless guidance of the valve closure member (8), with said guide member (1) being locatable within said aperture (9) by location means (4, 5, 6).
A VALVE COMPONENT FOR A FRICTIONLESS GUIDED VALVE
A composite valve plate for use in a plate-type non-return valve comprises an outer valve closure member (8) having a central aperture (9) and a planar guide member (1) locatable in said central aperture (9) and being capable of providing frictionless guidance of the valve closure member (8), with said guide member (1) being locatable within said aperture (9) by location means (4, 5, 6).
Description
3~ 5~
A valve componsnt ~or ~ fr.ictlon3.es~ guided The prus~nt invention rel~ta5 to e val~ cDmp~n~n~ for ~9 ~s part o~ a plato-type non-r~turn valve ~nd mor~ partl~ul~rly to a frlc~ionle~a yuide mamb~r Por u8e wl~h a valv~ clo~ur~
membs~ whereby a oampasit~ valve pla~,o is ~o~rned. It i~ ~nvi~sgsd th3 valvu clo3uro m~mber and the compoQite valve plate alao form part of tha pressht inv3ntion.
Hitherto in ~riction~es3 guided valves, valve plata3 are known which have b~n integrally ~ormed o~ ~eel and have mainly 1~ ccmprised a main outer, annular valv~ closure portion normally pravided wl~h ~rcuats S10tB for tha pa~aga of air or oth3r ga~os, and ~uide m~ans located cantr~lly of the valva clo3ur3 portion to provid~ what is term3d "frictionle~3 ~uldanc~"
with ssid guid~ me~ns laading tG mountin~ m~ng whloh, ~n use in ~ valvs, ~rs clamp~d in position betwsan ~heseat and ~uard of ths vslvs. Hitherto known v~lU8 plat3 h~ve ba~n totally form~d pf s~e~l or if ~or~ad of ~nokher mat~ l heue baan ints~rally for~o i.a. the vslv3 closure portion snd ~h~
guidQ therefor hav~ baon on3-piace.
2a Propo~als have been mada to form valv3 pl~t~ of tltanlum or pl~stic~ material or matsrial other than s~eel but difFicultia3 hsvs been encounte~ed. ~ith a plate Formed ~
titanium or plastlcs ~ater;al, fl consit3rsbla raduction ln the w0ight of the plate can be achiavad which 1 of consldarabla advantag~ ~inc~ the inartia o~ th~ plata i8 ~aduc~d and tha opara~ion of a valv~ incorporating ~uch a plate ~ ~nhanca~
~ow~ver, difficul~ia~ ars exp~rianced a8 a rs~ult of th~ poor flexlns and wa~r characteristio~ c~ thc cantral guide ~aan~
3a which h~a dctractad from th~ advsntages raaulting from tha savinga in wsight.
Accor~$ng to th~ prss~nt -invQ~tlon a ~uid3 m~mber for U8~ aa part o~ ~ pla~a ~or us~ in a plata-typ3 non-r0turn valva . . : : - . . . -. .
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comprise~ central mounting msan~ ~or ~n~bling the guida mamb~r to be located in pD3ition in a valva, at l~a3t ona rosillently fl~xlbl~ guide arm extanding outwardly from or located outwardly o~ ~ald c3ntral mountin~ mean~ and le~ding to or joining ~ith aut~r S mounting me~ns which parmits the guid0 m~mber to b~ conn~ctad to or mounted on an out~r valve cloeura member.
Tho guid~ m3mber will be o~ a mat~rial ~4ch as ~ill exhl~it the r~quired ~loxibility and wsar characterlstlcs end will norm~lly be oP st3al a8 us3d in known Intsgrally ~ormad valve plats~. The guida membar will gen~rally be Flst or lie in a ~in~le plane.
Tho guid3 m~mb3r will be o~ a th~ckn~ such ~ to ~xhibit the rsquired raoilianDa an~ flaxibili~y end may bs of a constant thicknass or havs r~ducod thickn~ss portions to prov~de anhanc3d chara~tsri~tics a~ may be dssire~. Ths cantrsl mounting means mRy be ~ central hub portion pre~arably with a cant~al oircular ap~rtur~ thsrein or msy be ~orm3d ~rom separate arm portions laadlng lnwardly ~rom sn outer continuous mounting portion. Tho c~ntral mountlng means will hsua locatlng mcan~ ~uch a~ cut out portions to en~ure corract location of the mambsr a~ i3 known in tha central portion~ o~ knDwn valva plates.
Tha at least one ~lexible o~Ui~ arm may extend splrally ~utwardly o~ the central mounting m~an~ and will run into tha outer moun~ing msan~ ~lthough 6ny o~her de~ircd arr~ng~m~n~
may b~ previdsd.
Th~ outar meunting m~ani3 will prefar~bly b~ provldod wi~h m~ans to ansura Cor~3Ct pO8itiOh therao~ r31Otivs to tha valvo closura ~ambar with which it 13;.to bs usad and this m~y ~omprise an outwardly extand~ng projection which cooperatos with ~nd ~e locatable in a corr3sponding ~eces3 ln the inn~r p~riphery o~ the valva closiura m~mber.
The Duter mounting me~ns will ba such ~8 to caopsrate with msani3 provided in ~h~ ~nner port1on or port~o~si of the valve clo~ur~ mamb~r to ~nsure adequats retsntiDn, Pr~era~ly the - ~ .
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mounting means ~ill compriss t~o arm~ extending circularly f~om the end of the flexibl~ guide ~rm in opposite directions and ~armin~ting wlth a sp~ce th~reb~t~3~n and being suf~icicntly resili~nt ln the pl~na of the plat~ ~o a~ to b~ ang~gaable with a co~espondin~
circul~r groovo or ohsnr7~1 ln the inner periphe~:y o~ ~h~ valve 0103ur~ membar which i~ provid~d for r~ceiving ~uch ln the m~nner oP sn internal oirclip arranyemen~. Sultable apertura~ w~ll bs providsd on tha free ends of the mounting arms to permit engagsmant by ~ui~abla tools such a~ ~ pair o~ olrolip pliers.
Th~ guid~ mamber thus wlll normally bs integrally ~ormed oP one piece material prafsrably ste31 and be locatablo in 8 epsc~ally formad valve oloeura memoer 80 a~ to provid~ for ~riction-lass guidance thereo~ in ~3~r3d mannar.
Also accordiny to ths presen~ invsntlon a valvo clo~ure memb3r compr~aes a generally ~nnular or othsrwi~e ~h~psd plate member with th~ough passages ~ormed th3rain &nd heving a o~ntral ap~rture therain ~or retainably raceiv~ng a g~id~ me~bar th~rain ~hioh is to provide fric~onless guldance for th3 valve closurs msmb3r.
The valve closure member iS normslly of a matsrisl of le~ser dcn~ity than ~t301 and may be of any dasir3d ~orm and msy b3 shapsd to corraQpond to the valve cloaurs port~on~ o~ knnwn lntegr~lly ~orm~d plat~ v~lve membora - thore being ab~ont ths c~ntral ~r~ctionle~s guidsnc~ portlo~ and mounting po~tion an~ there b~ing previd~d ~aans ~or enaolln~o location o~ th~ guid~ mamber oentrally o~ th~ valvo closure m3mbar.
The maan~ ~or permittin~ locatlon of th~ guid~ m~mber centrally o~ the vslve closu~s member may oomprlso ~ ci~cular groove or channql o~ any de~lrad cross-sectlo~ sx~nding ~rownd tha inn~r pariphery of tha valvo closure member and bclng o~ such a sh~p~ a~ to cooparat~ wlth th~ o~ter mounting means o~ ~ gu~ds membsr 30 as ~0 ret~in such therein. I~ the guld~ mamber lJer~
to hi~va on ~t3 outar pariphery a num~er o~ ~psced apart projaction39 : . " ' . -: . . .
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12S~S1~
- 4 _ th~n one arrangement ~or lo~t~on oP the guide m~mber might ~e to prouido ~lots ronnlng into a groove or ohannel ln th3 innar psriphory o~ tha valv~ closure mamber 90 a9 to permlt insertion of tho projoction~ into said groous o~ ohan~al ~nd r~tantion by a tuisting movsmen~ of th~ gufde memb~r relative to the v~lvo closure memb~r with ~ub~q~ent po~Qltlon~l ratsntlon ~lng ~hiov~d by tho loca~ing pln~ ~tc, of th~ val~ o pre~qn~ unda31r~d dlQlo~gement of tha g~ida memb~r From the valv~ clo~ure member.
Al~o according to the pre3ent ~nvention a composite valva plate for usa in a plate-typ~ non-rsturn valv~ compri.s3s an outer u~lve clos~re membar having a c~ntral apartura and a guide msmbsr locat~ble in ~aid can~ral aperturs and b~ing c~pable oP
providing frict~onless ~uidance of ths v~lve olosuro memb~ lth sa~d guld~ mambQr bsing locatable ~ithin said ~parture by looation mean~, ThQ locatlon m~ans ~111 pra~cr2bly be int3r-coop~r~t~on means on the guida m~mber and valv~ closure mamber and pr~fera~ly oompri8 an annular groove o~ channel in the inn~r periph~ry o~ the valva clcsurs m~mbs~ lying in the sa~a plane ~ the valvs clo~ure ~embar a~d into which channel or ~roov3 spring arms in ~h9 form of an in~srnal circlip may b~ lecatablo ~or ret~nt~on purpo~s. Othcr loCat~Gn m3a~9 may be prDvld~d by w~y o~ pr3~ction or rivattin~
or bond~ng or ather~e s~curing tha guide ~mbsr in posit~on i~
the v~lv~ closure m~mbsr.
It i9 of ceur30 impo~t~nt ~or ths guide m4mber to.be retaln~d a9aillBt ~ot3tion ralativ~ to tho vslv~ closure m~mb~r 30 ~8 to 3~ ~aintain thc passage6 in alignmer7t with appropr.i~ts p~r~ ~n th~ ~21va houeln~ etc. ~nd in thi~ re~pact m3ans ars provided to prev~nt rota~ion of the guide m4m'osr ~n th9 locat1on ~ana about a c~ntrsl axis tr~nsv~rs3 to ths m~mber. S~op maang may co~pri o a radislly sxtending p~ojection and correspondin~
radlally ~xtending r4cs~ which ars coopcrable to pr3vsnt th~
ment~onad rotation snd m8y b3 providod on the gui~3 member ~nd ,- - :
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. !, 0 ~858~9 closur~ m~mber Qr vlc~ v~rs~. The sam~ conside~ations a~
regards ro~lliance ~nd ~13xlbility and lsteral st~bility of ~h~ yuida memb~r a~ ~xi~t with the ~rickionless guLde pDrtions of known valva plate~, for exampl0 whan tha g~ids m~mber ins~rt according to ~he pr~acnt inv~ntlon 18 rn~ 0~
steel or any other ma~erial suitable to provids ths n~o~s~ry latsral sti~fn~s~3 i.~. to prsv~nt undu~ mDvom~nt of th~ vslve clo~ur~ memb~r in th~ plane in which it lia3 wh~lst at the 3ame t~me providing the rsquisite r~ilianos For frictionlass guid~noe with oth~r rsquired charactsristics of, ~or 9x~mpls, lon~o li~0.
It is ~180 impDrtant ~or the gUidB mambBr ~D flnd it9 o~n csntral position or locatlon conc~ntrlcally w~thin ~he valve and ln thi~ respect whon, for exampla, th~ outer mounting mssn~ ara in th3 form o~ opposit~ly direotad arcuate ~prlng ~rm~ to provid3 an lnt~rnal circlip arrangemsnt looatabl~
wlthin a groovc withln the cantral psriph~ry of tha aperture o~ the ~alve closure msmbe~, it i~ important for such spring arms to ~l~x out~rdly in oppos~t~ directions in the plane in which th~ membsr lie9 SO ~hat when locat~d in tha groov~ or channel of tha v~lva clos~re msmbsr th~ c~ntral mounting m~ans atc. ~nsure that the V~iV9 closure m3mber iB concantrically locstsd within ths vslve hou~ing, It is ~ccordin~ly to be appreciat~d tha~ the concapt o~ tha ~n~ntion enabla~ a composite valv~ plate to ba provid~d whsrein the ou~er valve closure member may ben3~it from mat9ri819 ~hich ~nhanc3 ~alve effic~ency, fùr ~xample, ~h3n o~ tltsnium ur cortaln pla~tics matarial considerablc wal~ht raduction and thcrafore re~uc~lon in inartia i ach~eved ~hllst at th~ sama tima p~oviding the ro~LIi~its desirable charaotaristics of frictionl~ss guidance i.e. guidanc~ ~ithout sliding ccntact.
The guide ~ambor wlll normally bo made of steel ~S slmilar or equivalant io ths ccntral F~iotionl~s gu~d~ portiDns o~
kno~n guido platos. ~t iB of courso to be appraciated - -, . ' - ~ ' , . ' ~ . ' '~ , : . . .
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35~9 that the thickness of -the plate from which the guide member is made and indeed -the thickness of the guide memher may be considerably less than -the -thickness of the valve closure member -to provide the requlred resilient flexibilit~ somewha-t a~ong the lines of the central frictionless gui~e por-tion of known valve plates wherein the resilien-t yuide arms are made of reduced thickness relative to the remainder of the valve plate.
According to a further broad aspect of the presen-t inven-tion there is provided a composite valve plate for use in a plate-type non-return valve comprising a flat outer valve closure member having a central aperture and a guide member locatable in the central aperture and being capable of providing frictionless guidance of the valve closure member.
The guide member is locatable within the aperture by location means. The location means of the guide member when located in the central aperture lies or lie in the space defined between the planes in which the opposite surface of the valve closure member lie, and the guide member lies within the central aperture of the valve closure member during an unstressed state and is connected by the location means to the valve closure member so that during a given lift the valve closure member can move on either side of the planes on which said guide member lies.
According to a further broad aspect of the present inven-tion there is provided a guide member for use as part of a plate for use in a plate-type non-return valve comprising central mounting means for enabling the guide member to be located in position in a valve, at least one resiliently flexible guide arm extending outwardly from orlocated outwardly of the central mounting means and leading to or joining with outer mounting means which permits the gui~e member to be . ~
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~s~9 -6a -be connected to or moun-ted on an outer valve closure member.
The mounting means comprises two arms extending circularly from the end of the guide arm of the guide member in opposi-te direc-tions and -terminating with a space therebe-tween and being sufficiently resilient in -the plane of -the plate wi-th which it is to be usecl so as -to be engageable wikh a corres ponding circular groove or channel in the inner periphery oP
the valve closure member when provided for receiving such in the manner of an internal circlip arrangement.
According to a still further broad aspect of the present invention there is provided a valve closure member and guide therefor comprising a generally annular or othérwise shaped plate member which is of titanium, plastics material, or of other material of lesser density than steel and has through passages formed therein, and having a central aperture therein retainably receiving retention means of a guide member which provides frictionless guidance for the valve closure member.
The guide member lies within the central aperture of the valve closure member during an unstressed state and is connected to the valve closure member so that during a given lift, the valve closure member can move on either side of a plane on which the guide member lies.
According to a still further broad aspect of the present ~-invention there is provided a composite valve plate for use in a plate-type non-return valve comprising an outer valve closure member ~ormed totally of plastics material and having a central aperture, and a guide member of metal locatable in the central aperture and being capable of providing friction-less guidance of the valve closure member. The guide member has a central mounting means lying in a plane and the guide member is locatable within the central aperture of the valve closure member by location means and rests in the central .' ~' ' .
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~85~3~9 - 6b -aperture when ln an uns-tressed state and is connected by -the location means to the valve closure member such that duriny a given lif-t in use, -the valve closure member is able to move on either side of said plane ln which the central rnountiny means lies.
The invention will be described fur-ther, by way of example, with reference to the accompanying drawings, in which:
FigO 1 is a plan view of a guide member according to the present invention;
Fig. 2 is a side elevation of the guide member of Fig. l;
Fig. 3 is a plan view of a composite valve plate according to the present invention incorporating the guide member of Figs. 1 and 2 and including an outer valve closure member also according to the present invention;
Fig. 4 is a section on the line X-X of Fig. 3 but with the guide member being omitted; and Fig. S is a sectional view of a modified form of construc-tion of the valve in which the valve plate is made of plastic.
In Figs. 1 and 2 a guide member 1 is illustrated comprising a central mounting means 2 in the form of an annular hub with cut-outs 2a, 2b for location purposes on pins within the valve housing (not shown). The hub 2 merges via a transition portion into a resiliently flexlble spring arm or guide arm 3 which in the embodiment is concentric with the hub 2 although may in other embodiments be of spiral or other shape extension. The guide arm 3 merges via transition portion . ~ .
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. ~' . ' ' ~ ' , .' ' ' ' ' ' i '. , lnto outer mounting means 4 and 5 comprising two oppositely directed resilient spring arms 4 and 5 whlch are spirally tapered and lead -to enlarged end portions 4a and 5a which have apertures therein for receiving circlip pliers -to en~ble the arms 4 and 5 to be moved together to perrnit insertion of the guide member within an ou-ter valve closure member as will be described subsequently. It will be appreciated that the arms 4 and 5 have to be resiliently flexible in the plane of the guide member 1 and spring apart upon release of the circlip pliers to engage in the grooves of a valve closure member and preferably when in such engaged position there will be certain pressure on the groove walls to ensure some abutment contact. A projection 6 extends from one side of the guide member and is cooperable with a recess 7 in -the valve closure member 8 to ensure that the guide member 1 and closure member 8 do not move relative to one another once the guide member has been located so as to ensure correct align-ment of the valve closure member within a valve housing. The guide member 1 in this embodiment is formed of steel and is of a thickness and characteristic as to provide the required resilient flexibility to ensure pliable frictionless guidance whilst providing the necessary actual stability as is required with frictionless guidance portions of known integrally formed valve plat~e. The guide member 1 is of constant thick-ness although may be fashioned as desired.
The outer valve closure member 8 illustrated in Figs. 3, 4 and 5 in the embodiment is made of plastics material or may be formed of suitable metal such as titanium to provide desired characteristics such as lightweight relative to known valve plates or at least the known outer valve closure portions of known integrally formed valve plates. It will be appreoiated that bhe outer valve closure member may be of any suitable arrangement to close and open the valve ducts of a plate-type non-return valve and thus the partlcular ~, .
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i8~
~rr~ngament is given by way o~ cxample anly, Tha closure ma~bar 8 has a c~ntral circular epertwr~ 9 and a contlnu annual or groove 10 la provid~d ~ location m~an~ Por ~h~
guid~ m3mbDr 1 and receivas th3 rasill~ arrn8 4 ~d 5.
1~ rC~Qoo 7 i3 proVldbcl tl:~ co4p~ratf3 wlth th~ pr~,~ectlnns G
so a~ to p~rmit the guid9 m~mbar 1 to b~ lnaerte~ in the cantr~l ap3rtura g in tha v~lve closura member B and ~or the srms 4 and 5 to be located ln ~he groove 10 but is 3uch a~ to prev~nt ro~ation o~ guide mombar 1 r31atlve tc closurc mam~r 2 once tha location ha~ basn e~f~cted, Whîlst tha groov~ 10 ln th~ section 4 ia illustrated a baing o~
~ctsngul~r sactlon ~uch may be of any ~uitabla sh~pe or msy ln f~ct 'oa c~ la~ar roll~f, l~e. o~ less~r d~pth.
It will be appreclated that var~ous modi~icatisns and ohanges may be e~fected without d~partlng ~rom the scopa c~ tho present inventlon. For axamplc? in a valva plate arrangement ~h~reby ~rictionless 9ui~ahce or uthar g~idsnce i3 e~f~c~cd by way of a guids portion be~ng outwardly o~ ths valve closura portion, ths sama oons~deration as regard~
COmpDaita con~tr~otion and ~ormation o~ the guid~ member of one ~ulta'ole moterial and the vàlve closur3 membar o~ another suit~bla and d3~1rabla material may be achi~vcd.
2S ~18c whil~t the p~s~ant invantion i~ ~énsrally related to a valw ~lat~ it is slsa al~n~rlnr~n~ t.n h~ .h~ .h~ o~ o~
tha prcsont inv~nt~Dn to provlde an equivalent ~rr~ngsmant in a valve component 3uch a~ guide washor3, ~pring pl~tee, cuahion plata~, d~mper plate~ and the l~ke. AB an exampla of an altsrnat~va arrangement ~or loca~ion of ths guido memb~r with~n the cloaur3 memb3r, 3sparata proj~ctlons may be providad on tha euter sur~ce of the guide membe~ almoet in the form o~
c~atell~tlons and be ln3artable vi3 corraapondlng sa~tellst~d rac3qse3 in the p~riphéry ~f tha central 2perture o~ the valvs clo~ura member le~ding to a groove therein or grcove~
thareln wlth suitablo locking msan3 to pravant ramoval .
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possibly so~hat in a mann~r of ~ bayon~t clip ~rrsng~m~nt.
Alt~rnativaly pro~ections or rivets may be provided for tho locatien and ~ecurement.
, Aa a ~urthe~ d~velopm~nt o~ tha inventivs oonc~pt o~
the pres~nt ~nvention e compo~lt~ valve pl~te comp~is~s ~n intogrally ~ormed m~tal pl~te p~rt hsvi~g an ou~er portion encapsulated, embadd~d or othgrw~e bonded to o pl88~10 met~rial or othar mat~rial oF le~s1r dsn31ty than that o~ tho mctol from which ~aid pl~to is composed ond ~n inn~r portion comprising central moun~in~ m~an and at le~st one re311iently flaxi~le guide arm sx~snolng outwardly from or located outwa~dly D~ e~id c~ntral mounting maans and joining with theo~er pl~te portion; said out3r plate portlon corraspondin~ in shape to a valvs clos~re portion or otherwi~e ext~nding from sa~d central portion to act as interconnaction means wlth said plastics material which i3 ~hep~d so a~ to fDrm the valv~ olosuro pa~t of the plat3. Thls developm~nt o~ the concept enable6 the waight o~ th3 v~lv~ plato to be 2~ reduced rclatlve to known valve plate~ form3d wholly of m~tal whll3t taking advantsoe of the desira'ole oharact3r~-stlos o~ res~lienc~, flexibility ~nd long ll~e en~oysd by the fr~c~ionlass guldsnce o~ m3tal plates i.a. nor~ally :
o~ ~teel. The matal plate part may be for~ed in the shapc 2S o~ a known valve plate bu~ with at l~ast the valvc closure portion being of consid~rsbly reduc~d thickna3s relstive to known pl~tos thereby achieving consider~bl~ we~yht reduction, The plastic9 matarisl may bs i~tYgr~lly mouldad arouno ths outsr plat~ portion or ~or~ a l~minate wlth two annular Qhee~ bond~d eLthcr sid~ o~ the outer plat~
portion and forming thc valve closu~Q portion.
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A valve componsnt ~or ~ fr.ictlon3.es~ guided The prus~nt invention rel~ta5 to e val~ cDmp~n~n~ for ~9 ~s part o~ a plato-type non-r~turn valve ~nd mor~ partl~ul~rly to a frlc~ionle~a yuide mamb~r Por u8e wl~h a valv~ clo~ur~
membs~ whereby a oampasit~ valve pla~,o is ~o~rned. It i~ ~nvi~sgsd th3 valvu clo3uro m~mber and the compoQite valve plate alao form part of tha pressht inv3ntion.
Hitherto in ~riction~es3 guided valves, valve plata3 are known which have b~n integrally ~ormed o~ ~eel and have mainly 1~ ccmprised a main outer, annular valv~ closure portion normally pravided wl~h ~rcuats S10tB for tha pa~aga of air or oth3r ga~os, and ~uide m~ans located cantr~lly of the valva clo3ur3 portion to provid~ what is term3d "frictionle~3 ~uldanc~"
with ssid guid~ me~ns laading tG mountin~ m~ng whloh, ~n use in ~ valvs, ~rs clamp~d in position betwsan ~heseat and ~uard of ths vslvs. Hitherto known v~lU8 plat3 h~ve ba~n totally form~d pf s~e~l or if ~or~ad of ~nokher mat~ l heue baan ints~rally for~o i.a. the vslv3 closure portion snd ~h~
guidQ therefor hav~ baon on3-piace.
2a Propo~als have been mada to form valv3 pl~t~ of tltanlum or pl~stic~ material or matsrial other than s~eel but difFicultia3 hsvs been encounte~ed. ~ith a plate Formed ~
titanium or plastlcs ~ater;al, fl consit3rsbla raduction ln the w0ight of the plate can be achiavad which 1 of consldarabla advantag~ ~inc~ the inartia o~ th~ plata i8 ~aduc~d and tha opara~ion of a valv~ incorporating ~uch a plate ~ ~nhanca~
~ow~ver, difficul~ia~ ars exp~rianced a8 a rs~ult of th~ poor flexlns and wa~r characteristio~ c~ thc cantral guide ~aan~
3a which h~a dctractad from th~ advsntages raaulting from tha savinga in wsight.
Accor~$ng to th~ prss~nt -invQ~tlon a ~uid3 m~mber for U8~ aa part o~ ~ pla~a ~or us~ in a plata-typ3 non-r0turn valva . . : : - . . . -. .
.:
.
, - ' : ' ' :
.
~ 35 8 4~
comprise~ central mounting msan~ ~or ~n~bling the guida mamb~r to be located in pD3ition in a valva, at l~a3t ona rosillently fl~xlbl~ guide arm extanding outwardly from or located outwardly o~ ~ald c3ntral mountin~ mean~ and le~ding to or joining ~ith aut~r S mounting me~ns which parmits the guid0 m~mber to b~ conn~ctad to or mounted on an out~r valve cloeura member.
Tho guid~ m3mber will be o~ a mat~rial ~4ch as ~ill exhl~it the r~quired ~loxibility and wsar characterlstlcs end will norm~lly be oP st3al a8 us3d in known Intsgrally ~ormad valve plats~. The guida membar will gen~rally be Flst or lie in a ~in~le plane.
Tho guid3 m~mb3r will be o~ a th~ckn~ such ~ to ~xhibit the rsquired raoilianDa an~ flaxibili~y end may bs of a constant thicknass or havs r~ducod thickn~ss portions to prov~de anhanc3d chara~tsri~tics a~ may be dssire~. Ths cantrsl mounting means mRy be ~ central hub portion pre~arably with a cant~al oircular ap~rtur~ thsrein or msy be ~orm3d ~rom separate arm portions laadlng lnwardly ~rom sn outer continuous mounting portion. Tho c~ntral mountlng means will hsua locatlng mcan~ ~uch a~ cut out portions to en~ure corract location of the mambsr a~ i3 known in tha central portion~ o~ knDwn valva plates.
Tha at least one ~lexible o~Ui~ arm may extend splrally ~utwardly o~ the central mounting m~an~ and will run into tha outer moun~ing msan~ ~lthough 6ny o~her de~ircd arr~ng~m~n~
may b~ previdsd.
Th~ outar meunting m~ani3 will prefar~bly b~ provldod wi~h m~ans to ansura Cor~3Ct pO8itiOh therao~ r31Otivs to tha valvo closura ~ambar with which it 13;.to bs usad and this m~y ~omprise an outwardly extand~ng projection which cooperatos with ~nd ~e locatable in a corr3sponding ~eces3 ln the inn~r p~riphery o~ the valva closiura m~mber.
The Duter mounting me~ns will ba such ~8 to caopsrate with msani3 provided in ~h~ ~nner port1on or port~o~si of the valve clo~ur~ mamb~r to ~nsure adequats retsntiDn, Pr~era~ly the - ~ .
- ' ~
. .
~ ~ t ~35~9 - 3 ~
mounting means ~ill compriss t~o arm~ extending circularly f~om the end of the flexibl~ guide ~rm in opposite directions and ~armin~ting wlth a sp~ce th~reb~t~3~n and being suf~icicntly resili~nt ln the pl~na of the plat~ ~o a~ to b~ ang~gaable with a co~espondin~
circul~r groovo or ohsnr7~1 ln the inner periphe~:y o~ ~h~ valve 0103ur~ membar which i~ provid~d for r~ceiving ~uch ln the m~nner oP sn internal oirclip arranyemen~. Sultable apertura~ w~ll bs providsd on tha free ends of the mounting arms to permit engagsmant by ~ui~abla tools such a~ ~ pair o~ olrolip pliers.
Th~ guid~ mamber thus wlll normally bs integrally ~ormed oP one piece material prafsrably ste31 and be locatablo in 8 epsc~ally formad valve oloeura memoer 80 a~ to provid~ for ~riction-lass guidance thereo~ in ~3~r3d mannar.
Also accordiny to ths presen~ invsntlon a valvo clo~ure memb3r compr~aes a generally ~nnular or othsrwi~e ~h~psd plate member with th~ough passages ~ormed th3rain &nd heving a o~ntral ap~rture therain ~or retainably raceiv~ng a g~id~ me~bar th~rain ~hioh is to provide fric~onless guldance for th3 valve closurs msmb3r.
The valve closure member iS normslly of a matsrisl of le~ser dcn~ity than ~t301 and may be of any dasir3d ~orm and msy b3 shapsd to corraQpond to the valve cloaurs port~on~ o~ knnwn lntegr~lly ~orm~d plat~ v~lve membora - thore being ab~ont ths c~ntral ~r~ctionle~s guidsnc~ portlo~ and mounting po~tion an~ there b~ing previd~d ~aans ~or enaolln~o location o~ th~ guid~ mamber oentrally o~ th~ valvo closure m3mbar.
The maan~ ~or permittin~ locatlon of th~ guid~ m~mber centrally o~ the vslve closu~s member may oomprlso ~ ci~cular groove or channql o~ any de~lrad cross-sectlo~ sx~nding ~rownd tha inn~r pariphery of tha valvo closure member and bclng o~ such a sh~p~ a~ to cooparat~ wlth th~ o~ter mounting means o~ ~ gu~ds membsr 30 as ~0 ret~in such therein. I~ the guld~ mamber lJer~
to hi~va on ~t3 outar pariphery a num~er o~ ~psced apart projaction39 : . " ' . -: . . .
: . . . ~: .
'': : - '. . :
~ . ~ . . .
12S~S1~
- 4 _ th~n one arrangement ~or lo~t~on oP the guide m~mber might ~e to prouido ~lots ronnlng into a groove or ohannel ln th3 innar psriphory o~ tha valv~ closure mamber 90 a9 to permlt insertion of tho projoction~ into said groous o~ ohan~al ~nd r~tantion by a tuisting movsmen~ of th~ gufde memb~r relative to the v~lvo closure memb~r with ~ub~q~ent po~Qltlon~l ratsntlon ~lng ~hiov~d by tho loca~ing pln~ ~tc, of th~ val~ o pre~qn~ unda31r~d dlQlo~gement of tha g~ida memb~r From the valv~ clo~ure member.
Al~o according to the pre3ent ~nvention a composite valva plate for usa in a plate-typ~ non-rsturn valv~ compri.s3s an outer u~lve clos~re membar having a c~ntral apartura and a guide msmbsr locat~ble in ~aid can~ral aperturs and b~ing c~pable oP
providing frict~onless ~uidance of ths v~lve olosuro memb~ lth sa~d guld~ mambQr bsing locatable ~ithin said ~parture by looation mean~, ThQ locatlon m~ans ~111 pra~cr2bly be int3r-coop~r~t~on means on the guida m~mber and valv~ closure mamber and pr~fera~ly oompri8 an annular groove o~ channel in the inn~r periph~ry o~ the valva clcsurs m~mbs~ lying in the sa~a plane ~ the valvs clo~ure ~embar a~d into which channel or ~roov3 spring arms in ~h9 form of an in~srnal circlip may b~ lecatablo ~or ret~nt~on purpo~s. Othcr loCat~Gn m3a~9 may be prDvld~d by w~y o~ pr3~ction or rivattin~
or bond~ng or ather~e s~curing tha guide ~mbsr in posit~on i~
the v~lv~ closure m~mbsr.
It i9 of ceur30 impo~t~nt ~or ths guide m4mber to.be retaln~d a9aillBt ~ot3tion ralativ~ to tho vslv~ closure m~mb~r 30 ~8 to 3~ ~aintain thc passage6 in alignmer7t with appropr.i~ts p~r~ ~n th~ ~21va houeln~ etc. ~nd in thi~ re~pact m3ans ars provided to prev~nt rota~ion of the guide m4m'osr ~n th9 locat1on ~ana about a c~ntrsl axis tr~nsv~rs3 to ths m~mber. S~op maang may co~pri o a radislly sxtending p~ojection and correspondin~
radlally ~xtending r4cs~ which ars coopcrable to pr3vsnt th~
ment~onad rotation snd m8y b3 providod on the gui~3 member ~nd ,- - :
-, ~ ,: , :
. !, 0 ~858~9 closur~ m~mber Qr vlc~ v~rs~. The sam~ conside~ations a~
regards ro~lliance ~nd ~13xlbility and lsteral st~bility of ~h~ yuida memb~r a~ ~xi~t with the ~rickionless guLde pDrtions of known valva plate~, for exampl0 whan tha g~ids m~mber ins~rt according to ~he pr~acnt inv~ntlon 18 rn~ 0~
steel or any other ma~erial suitable to provids ths n~o~s~ry latsral sti~fn~s~3 i.~. to prsv~nt undu~ mDvom~nt of th~ vslve clo~ur~ memb~r in th~ plane in which it lia3 wh~lst at the 3ame t~me providing the rsquisite r~ilianos For frictionlass guid~noe with oth~r rsquired charactsristics of, ~or 9x~mpls, lon~o li~0.
It is ~180 impDrtant ~or the gUidB mambBr ~D flnd it9 o~n csntral position or locatlon conc~ntrlcally w~thin ~he valve and ln thi~ respect whon, for exampla, th~ outer mounting mssn~ ara in th3 form o~ opposit~ly direotad arcuate ~prlng ~rm~ to provid3 an lnt~rnal circlip arrangemsnt looatabl~
wlthin a groovc withln the cantral psriph~ry of tha aperture o~ the ~alve closure msmbe~, it i~ important for such spring arms to ~l~x out~rdly in oppos~t~ directions in the plane in which th~ membsr lie9 SO ~hat when locat~d in tha groov~ or channel of tha v~lva clos~re msmbsr th~ c~ntral mounting m~ans atc. ~nsure that the V~iV9 closure m3mber iB concantrically locstsd within ths vslve hou~ing, It is ~ccordin~ly to be appreciat~d tha~ the concapt o~ tha ~n~ntion enabla~ a composite valv~ plate to ba provid~d whsrein the ou~er valve closure member may ben3~it from mat9ri819 ~hich ~nhanc3 ~alve effic~ency, fùr ~xample, ~h3n o~ tltsnium ur cortaln pla~tics matarial considerablc wal~ht raduction and thcrafore re~uc~lon in inartia i ach~eved ~hllst at th~ sama tima p~oviding the ro~LIi~its desirable charaotaristics of frictionl~ss guidance i.e. guidanc~ ~ithout sliding ccntact.
The guide ~ambor wlll normally bo made of steel ~S slmilar or equivalant io ths ccntral F~iotionl~s gu~d~ portiDns o~
kno~n guido platos. ~t iB of courso to be appraciated - -, . ' - ~ ' , . ' ~ . ' '~ , : . . .
~',' .' ., :: ' ~
35~9 that the thickness of -the plate from which the guide member is made and indeed -the thickness of the guide memher may be considerably less than -the -thickness of the valve closure member -to provide the requlred resilient flexibilit~ somewha-t a~ong the lines of the central frictionless gui~e por-tion of known valve plates wherein the resilien-t yuide arms are made of reduced thickness relative to the remainder of the valve plate.
According to a further broad aspect of the presen-t inven-tion there is provided a composite valve plate for use in a plate-type non-return valve comprising a flat outer valve closure member having a central aperture and a guide member locatable in the central aperture and being capable of providing frictionless guidance of the valve closure member.
The guide member is locatable within the aperture by location means. The location means of the guide member when located in the central aperture lies or lie in the space defined between the planes in which the opposite surface of the valve closure member lie, and the guide member lies within the central aperture of the valve closure member during an unstressed state and is connected by the location means to the valve closure member so that during a given lift the valve closure member can move on either side of the planes on which said guide member lies.
According to a further broad aspect of the present inven-tion there is provided a guide member for use as part of a plate for use in a plate-type non-return valve comprising central mounting means for enabling the guide member to be located in position in a valve, at least one resiliently flexible guide arm extending outwardly from orlocated outwardly of the central mounting means and leading to or joining with outer mounting means which permits the gui~e member to be . ~
... ..
: , - . : ~ .
~s~9 -6a -be connected to or moun-ted on an outer valve closure member.
The mounting means comprises two arms extending circularly from the end of the guide arm of the guide member in opposi-te direc-tions and -terminating with a space therebe-tween and being sufficiently resilient in -the plane of -the plate wi-th which it is to be usecl so as -to be engageable wikh a corres ponding circular groove or channel in the inner periphery oP
the valve closure member when provided for receiving such in the manner of an internal circlip arrangement.
According to a still further broad aspect of the present invention there is provided a valve closure member and guide therefor comprising a generally annular or othérwise shaped plate member which is of titanium, plastics material, or of other material of lesser density than steel and has through passages formed therein, and having a central aperture therein retainably receiving retention means of a guide member which provides frictionless guidance for the valve closure member.
The guide member lies within the central aperture of the valve closure member during an unstressed state and is connected to the valve closure member so that during a given lift, the valve closure member can move on either side of a plane on which the guide member lies.
According to a still further broad aspect of the present ~-invention there is provided a composite valve plate for use in a plate-type non-return valve comprising an outer valve closure member ~ormed totally of plastics material and having a central aperture, and a guide member of metal locatable in the central aperture and being capable of providing friction-less guidance of the valve closure member. The guide member has a central mounting means lying in a plane and the guide member is locatable within the central aperture of the valve closure member by location means and rests in the central .' ~' ' .
': ,. . - , :
- , , .- . . ~ - ., : :
~85~3~9 - 6b -aperture when ln an uns-tressed state and is connected by -the location means to the valve closure member such that duriny a given lif-t in use, -the valve closure member is able to move on either side of said plane ln which the central rnountiny means lies.
The invention will be described fur-ther, by way of example, with reference to the accompanying drawings, in which:
FigO 1 is a plan view of a guide member according to the present invention;
Fig. 2 is a side elevation of the guide member of Fig. l;
Fig. 3 is a plan view of a composite valve plate according to the present invention incorporating the guide member of Figs. 1 and 2 and including an outer valve closure member also according to the present invention;
Fig. 4 is a section on the line X-X of Fig. 3 but with the guide member being omitted; and Fig. S is a sectional view of a modified form of construc-tion of the valve in which the valve plate is made of plastic.
In Figs. 1 and 2 a guide member 1 is illustrated comprising a central mounting means 2 in the form of an annular hub with cut-outs 2a, 2b for location purposes on pins within the valve housing (not shown). The hub 2 merges via a transition portion into a resiliently flexlble spring arm or guide arm 3 which in the embodiment is concentric with the hub 2 although may in other embodiments be of spiral or other shape extension. The guide arm 3 merges via transition portion . ~ .
` . .! -~' ' , ' .
. ~' . ' ' ~ ' , .' ' ' ' ' ' i '. , lnto outer mounting means 4 and 5 comprising two oppositely directed resilient spring arms 4 and 5 whlch are spirally tapered and lead -to enlarged end portions 4a and 5a which have apertures therein for receiving circlip pliers -to en~ble the arms 4 and 5 to be moved together to perrnit insertion of the guide member within an ou-ter valve closure member as will be described subsequently. It will be appreciated that the arms 4 and 5 have to be resiliently flexible in the plane of the guide member 1 and spring apart upon release of the circlip pliers to engage in the grooves of a valve closure member and preferably when in such engaged position there will be certain pressure on the groove walls to ensure some abutment contact. A projection 6 extends from one side of the guide member and is cooperable with a recess 7 in -the valve closure member 8 to ensure that the guide member 1 and closure member 8 do not move relative to one another once the guide member has been located so as to ensure correct align-ment of the valve closure member within a valve housing. The guide member 1 in this embodiment is formed of steel and is of a thickness and characteristic as to provide the required resilient flexibility to ensure pliable frictionless guidance whilst providing the necessary actual stability as is required with frictionless guidance portions of known integrally formed valve plat~e. The guide member 1 is of constant thick-ness although may be fashioned as desired.
The outer valve closure member 8 illustrated in Figs. 3, 4 and 5 in the embodiment is made of plastics material or may be formed of suitable metal such as titanium to provide desired characteristics such as lightweight relative to known valve plates or at least the known outer valve closure portions of known integrally formed valve plates. It will be appreoiated that bhe outer valve closure member may be of any suitable arrangement to close and open the valve ducts of a plate-type non-return valve and thus the partlcular ~, .
. .
. ..
'. '' .' ' -. . - - . : . , .
. `, ': :. ' ' - - :
i8~
~rr~ngament is given by way o~ cxample anly, Tha closure ma~bar 8 has a c~ntral circular epertwr~ 9 and a contlnu annual or groove 10 la provid~d ~ location m~an~ Por ~h~
guid~ m3mbDr 1 and receivas th3 rasill~ arrn8 4 ~d 5.
1~ rC~Qoo 7 i3 proVldbcl tl:~ co4p~ratf3 wlth th~ pr~,~ectlnns G
so a~ to p~rmit the guid9 m~mbar 1 to b~ lnaerte~ in the cantr~l ap3rtura g in tha v~lve closura member B and ~or the srms 4 and 5 to be located ln ~he groove 10 but is 3uch a~ to prev~nt ro~ation o~ guide mombar 1 r31atlve tc closurc mam~r 2 once tha location ha~ basn e~f~cted, Whîlst tha groov~ 10 ln th~ section 4 ia illustrated a baing o~
~ctsngul~r sactlon ~uch may be of any ~uitabla sh~pe or msy ln f~ct 'oa c~ la~ar roll~f, l~e. o~ less~r d~pth.
It will be appreclated that var~ous modi~icatisns and ohanges may be e~fected without d~partlng ~rom the scopa c~ tho present inventlon. For axamplc? in a valva plate arrangement ~h~reby ~rictionless 9ui~ahce or uthar g~idsnce i3 e~f~c~cd by way of a guids portion be~ng outwardly o~ ths valve closura portion, ths sama oons~deration as regard~
COmpDaita con~tr~otion and ~ormation o~ the guid~ member of one ~ulta'ole moterial and the vàlve closur3 membar o~ another suit~bla and d3~1rabla material may be achi~vcd.
2S ~18c whil~t the p~s~ant invantion i~ ~énsrally related to a valw ~lat~ it is slsa al~n~rlnr~n~ t.n h~ .h~ .h~ o~ o~
tha prcsont inv~nt~Dn to provlde an equivalent ~rr~ngsmant in a valve component 3uch a~ guide washor3, ~pring pl~tee, cuahion plata~, d~mper plate~ and the l~ke. AB an exampla of an altsrnat~va arrangement ~or loca~ion of ths guido memb~r with~n the cloaur3 memb3r, 3sparata proj~ctlons may be providad on tha euter sur~ce of the guide membe~ almoet in the form o~
c~atell~tlons and be ln3artable vi3 corraapondlng sa~tellst~d rac3qse3 in the p~riphéry ~f tha central 2perture o~ the valvs clo~ura member le~ding to a groove therein or grcove~
thareln wlth suitablo locking msan3 to pravant ramoval .
.. , . ,~ . . . .
'', ~' ' - . ,: '. ' , '................. " . - ~
. : -8~
g ~
possibly so~hat in a mann~r of ~ bayon~t clip ~rrsng~m~nt.
Alt~rnativaly pro~ections or rivets may be provided for tho locatien and ~ecurement.
, Aa a ~urthe~ d~velopm~nt o~ tha inventivs oonc~pt o~
the pres~nt ~nvention e compo~lt~ valve pl~te comp~is~s ~n intogrally ~ormed m~tal pl~te p~rt hsvi~g an ou~er portion encapsulated, embadd~d or othgrw~e bonded to o pl88~10 met~rial or othar mat~rial oF le~s1r dsn31ty than that o~ tho mctol from which ~aid pl~to is composed ond ~n inn~r portion comprising central moun~in~ m~an and at le~st one re311iently flaxi~le guide arm sx~snolng outwardly from or located outwa~dly D~ e~id c~ntral mounting maans and joining with theo~er pl~te portion; said out3r plate portlon corraspondin~ in shape to a valvs clos~re portion or otherwi~e ext~nding from sa~d central portion to act as interconnaction means wlth said plastics material which i3 ~hep~d so a~ to fDrm the valv~ olosuro pa~t of the plat3. Thls developm~nt o~ the concept enable6 the waight o~ th3 v~lv~ plato to be 2~ reduced rclatlve to known valve plate~ form3d wholly of m~tal whll3t taking advantsoe of the desira'ole oharact3r~-stlos o~ res~lienc~, flexibility ~nd long ll~e en~oysd by the fr~c~ionlass guldsnce o~ m3tal plates i.a. nor~ally :
o~ ~teel. The matal plate part may be for~ed in the shapc 2S o~ a known valve plate bu~ with at l~ast the valvc closure portion being of consid~rsbly reduc~d thickna3s relstive to known pl~tos thereby achieving consider~bl~ we~yht reduction, The plastic9 matarisl may bs i~tYgr~lly mouldad arouno ths outsr plat~ portion or ~or~ a l~minate wlth two annular Qhee~ bond~d eLthcr sid~ o~ the outer plat~
portion and forming thc valve closu~Q portion.
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Claims (26)
1. A composite valve plate for use in a plate-type non-return valve comprising a flat outer valve closure member having a central aperture and a guide member locatable in said central aperture and being capable of providing frictionless guidance of the valve closure member, with said guide member being locatable within said aperture by location means; characterized in that the location means of the guide member when located in the central aperture lies or lie in a space defined between the planes in which the opposite surface of the valve closure member lie, and said guide member lies within said central aperture of the valve closure member during an unstressed state and is connected by the location means to the valve closure member so that during a given lift, the valve closure member can move on either side of the planes on which said guide member lies.
2. A composite valve plate as claimed in claim 11 in which the whole of the guide member lies in said space defined by said planes.
3. A composite valve plate as claimed in claim 1, in which the location means comprises inter-cooperation means on the guide member and valve closure member.
4. A composite valve plate as claimed in claim 3, in which the location means comprises an annular groove or channel in the inner periphery of the valve closure member lying in the same plane as the valve closure member and into which groove or channel the ends of a resilient arm of the guide member in the form of an internal circlip may be locatable for retention purposes.
5. A composite valve plate as claimed in claim 1, in which means are provided to prevent rotation of the guide member in the location means about a central axis transverse to the member.
6. A composite valve plate as claimed in claim 5, in which the rotation prevention means comprise stop means in the form of a radially extending projection and corresponding radially extending recesses which are cooperable to prevent the mentioned rotation and are provided respectively on the guide member and located within the annular groove.
7. A composite valve plate as claimed in claim 1, wherein the outer valve closure member is of a titanium material or certain plastics material which enhances valve efficiency, to achieve considerable weight reduction and therefore reduction in inertia, while the guide member is made of steel.
8. A composite valve plate as claimed in claim 1, in which the closure member is of a material of lesser density than steel or of the material from which the guide member is made.
9. A composite valve plate as claimed in claim 1, in which the thickness of the guide member is considerably less than the thickness of the valve closure member to provide the required resilient flexiblity.
10. A guide plate for use as part of a plate for use in a plate-type non-return valve comprising, central mounting means for enabling the guide member to be located in position in a valve, at least one resiliently flexible guide arm extending outwardly from or located outwardly of said central mounting means and leading to or joining with outer mounting means which permits the guide member to be connected to or mounted on an outer valve closure member, wherein said mounting means comprises two arms extending circularly from the end of the guide arm of the guide member in opposite directions and terminating with a space therebetween and being sufficiently resilient in the plane of the plate with which it is to be used so as to be engageable with a corresponding circular groove or channel in the inner periphery of the valve closure member when provided for receiving such in the manner of an internal circlip arrangement.
11. A guide member as claimed in claim 10, in which apertures are provided on the free ends of the mounting arms to permit engagement by a suitable tool.
12. A guide member as claimed in claim 10 in which the guide member is generally flat or lies in a single plane.
13. A guide member as claimed in claim 10, in which the central mounting means of the guide member is a central hub portion.
14. A guide member as claimed in claim 13, in which the central hub portion has a central circular aperture therein or is formed from separate arm portions leading inwardly from an outer continuous mounting portion.
15. A guide member as claimed in claim 10, in which the central mounting means has locating means such as cut out portions to ensure correct location of the member in a valve.
16. A guide member as claimed in claim 10, in which the at least one flexible guide arm extends spirally outwardly of the central mounting means, which is a central hub portion, and the arm runs into the outer mounting means.
17. A guide member as claimed in claim 10, in which the outer mounting means is provided with means to ensure correct position thereof relative to the valve closure member with which it is to be used.
18. A guide member as claimed in claim 17, in which the correct positioning means comprises an outwardly extending projection which cooperates with and is locatable in a corresponding recess in the inner periphery of the valve closure member.
19. A guide member as claimed in claim 10, in which the outer mounting means are such as to cooperate with means provided in the inner portion or portions of the valve closure member to ensure adequate retention.
20. A valve closure member and guide therefor comprising a generally annular or otherwise shaped plate member which is of titanium, plastics material or of other material of lesser density than steel and has through passages formed therein, and having a central aperture therein retainably receiving retention means of a guide member which provides frictionless guidance for the valve closure member, said guide member lying within said central aperture of the valve closure member during an unstressed state and is connected to the valve closure member so that during a given lift, the valve closure member can move on either side of a plane on which said guide member lies.
21. A valve closure member as claimed in claim 20, in which there are provided means for enabling location of the guide member centrally of the valve closure member.
22. A valve closure member comprising, a generally annular or otherwise shaped plate member which is of titanium, plastics material or of other material of lesser density than steel and has through passages formed therein, and having a central aperture therein for retainably receiving retention means of a guide member with which it is to be used and which guide member is to provide frictionless guidance for the valve closure member, with said guide member lying within said central aperture of the valve closure member during an unstressed state and is connected to the valve closure member so that during a given lift, the valve closure member can move on either side of a plane in which said guide member lies, and means for enabling location of said guide member centrally of the valve closure member, said enabling means including a circular groove or channel of any desired cross-section extending around the inner periphery of the valve closure member and being of such a shape as to cooperate with the outer mounting means of said guide member with which it is to be used so as to retain such therein.
23. A valve closure member as claimed in claim 21, where the means for permitting location of the guide member centrally comprises a number of spaced apart projections on an outer periphery of said guide member, one arrangement for location of the guide member comprises the provision of slots running into a groove or channel in the inner periphery of the valve.
24. A composite valve plate comprising a guide member as claimed in claim 10 in combination with a valve closure member comprising a generally annular or otherwise shaped plate member which is of titanium, plastics material or of other material of lesser density than steel and has through passages formed therein, and having a central aperture therein for retainably receiving retention means of a guide member with which it is to be used and which guide member is to provide frictionless guidance for the valve closure member.
25. A valve closure member as claimed in claim 20, wherein said shaped plate member includes an outer plate portion located or encapsulated or embedded in or otherwise bonded to said valve closure member integrally formed of a plastics material or other material of lesser density than that of the metal from which said plate is comprised, said shaped plate member having an inner portion comprising central mounting means and at least one resiliently flexible guide arm extending outwardly from or located outwardly of said central mounting means and joining with the outer plate portion; said outer plate portion corresponding in shape to said valve closure member or otherwise extending from said central portion to act as interconnection means with said plastics material which is shaped so as to form the valve closure member.
26. A composite valve plate for use in a plate-type non-return valve comprising an outer valve closure member formed totally of plastics material and having a central aperture, and a guide member of metal locatable in said central aperture and being capable of providing fricitonless guidance of the valve closure member, said guide member having a central mounting means lying in a plane and said guide member being locatable within said central aperture of the valve closure member by location means and rests in said central aperture when in an unstressed state and is connected by the location means to the valve closure member such that during a given lift in use, the valve closure member is able to move on either side of said plane in which the central mounting means lies.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8531550 | 1985-12-21 | ||
| GB8531550A GB2184521B (en) | 1985-12-21 | 1985-12-21 | A valve component for a frictionless guided valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1285849C true CA1285849C (en) | 1991-07-09 |
Family
ID=10590131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000525738A Expired - Fee Related CA1285849C (en) | 1985-12-21 | 1986-12-18 | Valve component for a frictionless guided valve |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0287564B1 (en) |
| AT (1) | ATE80702T1 (en) |
| AU (1) | AU612107B2 (en) |
| CA (1) | CA1285849C (en) |
| DE (1) | DE3686770T2 (en) |
| GB (1) | GB2184521B (en) |
| IN (1) | IN166745B (en) |
| WO (1) | WO1987003934A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH674757A5 (en) * | 1988-01-19 | 1990-07-13 | Burckhardt Ag Maschf | |
| AT401550B (en) * | 1993-02-15 | 1996-09-25 | Hoerbiger Ventilwerke Ag | DISC VALVE, ESPECIALLY FOR COMPRESSORS |
| CH699500B1 (en) * | 2008-08-28 | 2012-02-29 | Peter Salzgeber | Valve plate assembly with a valve plate. |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE628685C (en) * | 1936-04-14 | Hoerbiger & Co | Ring valve with handlebar guidance | |
| US1615279A (en) * | 1924-01-23 | 1927-01-25 | Iversen Lorenz | Valve |
| GB319498A (en) * | 1928-09-28 | 1929-09-26 | Ingersoll Rand Co | Improvements in or relating to plate valves |
| GB450069A (en) * | 1935-06-01 | 1936-07-09 | Alfred Hoerbiger | An improvement in or relating to annular valves |
| DE722156C (en) * | 1938-10-30 | 1942-07-03 | Karl Rud Dienes Fa | Ring plate valve |
| US3070122A (en) * | 1960-04-04 | 1962-12-25 | Chrysler Corp | Compressor intake valve |
| AT243420B (en) * | 1963-05-08 | 1965-11-10 | Enfo Grundlagen Forschungs Ag | Multi-ring valve |
| US4039002A (en) * | 1976-05-28 | 1977-08-02 | Broyan Fred K | Gas compressor valve |
-
1985
- 1985-12-21 GB GB8531550A patent/GB2184521B/en not_active Expired - Fee Related
-
1986
- 1986-12-11 EP EP19870900197 patent/EP0287564B1/en not_active Expired - Lifetime
- 1986-12-11 AT AT87900197T patent/ATE80702T1/en not_active IP Right Cessation
- 1986-12-11 DE DE8787900197T patent/DE3686770T2/en not_active Expired - Fee Related
- 1986-12-11 AU AU67714/87A patent/AU612107B2/en not_active Ceased
- 1986-12-11 WO PCT/GB1986/000756 patent/WO1987003934A1/en active IP Right Grant
- 1986-12-18 CA CA000525738A patent/CA1285849C/en not_active Expired - Fee Related
- 1986-12-22 IN IN937/CAL/86A patent/IN166745B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0287564A1 (en) | 1988-10-26 |
| DE3686770T2 (en) | 1993-02-25 |
| WO1987003934A1 (en) | 1987-07-02 |
| GB8531550D0 (en) | 1986-02-05 |
| AU6771487A (en) | 1987-07-15 |
| DE3686770D1 (en) | 1992-10-22 |
| EP0287564B1 (en) | 1992-09-16 |
| GB2184521A (en) | 1987-06-24 |
| ATE80702T1 (en) | 1992-10-15 |
| IN166745B (en) | 1990-07-14 |
| GB2184521B (en) | 1990-06-06 |
| AU612107B2 (en) | 1991-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |