US2607298A - Rotary blade apparatus adapted for use as a pumping or driving unit - Google Patents

Rotary blade apparatus adapted for use as a pumping or driving unit Download PDF

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Publication number
US2607298A
US2607298A US705102A US70510246A US2607298A US 2607298 A US2607298 A US 2607298A US 705102 A US705102 A US 705102A US 70510246 A US70510246 A US 70510246A US 2607298 A US2607298 A US 2607298A
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United States
Prior art keywords
chamber
blade
annular
blades
cylindrical
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Expired - Lifetime
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US705102A
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English (en)
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Nicolas Jean Joseph
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Individual
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Priority to US80924A priority Critical patent/US2691868A/en
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    • 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/185—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by varying the useful pumping length of the cooperating members in the axial direction
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface

Definitions

  • the present invention relates to a hydraulic apparatus which may operate as a pump or as a hydraulic motor, and more particularly to a hydraulic apparatus comprising a stator and a rotor defining an annular chamber into which atleast one retractable movable blade, and at least one-stationary partition projects.
  • n is a St ll further object of the invention to provide a valve member for adjusting the axial extension of the blade chamber so as to control the output of the apparatus.
  • the present invention mainly consists in 'a hydraulic apparatus comprising 'a cylinder member formed with two coaxially arranged cylindrical bores, namely, a wider cylindrical bore and a'narrower cylindrical bore/which" are connected by a transversal an nui r surface portion.
  • the Wider cylindrical bore" at one, end of the cylinder member is closed by' atransversal end wall, and a piston isarrangedflwithin the'cylinder member axially slidably' and" turnably relative to the same.
  • the piston is provided "with ya narrower cylindrical portion fitting into the narrow cylindrical bore of the cylinder'member, and with a wider cylin-' drical portion fitting into the wider cylindrical bore of the cylinder member.
  • a chamber is formed which during operating contains a fluid cushion and serves as a balancing chamber.
  • the cylindrical portions of the piston member are Tconnected by an annular transversely extending surface portion so-that within the wider bo'reof thefcylinder member an annular chamber is formed.
  • the piston member is provided in thecylindrical surfaceof its wider portion with at least one axially extending recess communicating at one .end with th-eannular chamber and atthe other end with the balancing chamben,
  • one blade member is arranged in the recess the piston member movably in axial direc io th s me s as e i nto h e and divides the same, together with-;;th e blade;
  • a v ve me r. is'm ted min s- 16 member l da y n axi di ect eme? and. engages the surface of the piston member 'inthe regionof a transversalcircular, groove egg'ten'ding, around the piston member.
  • the valve member is provided with two ports arranged on. either side of the circular groove, one of the. ports communicating throughi conduits a delivery portion of theannular blade chamberoandother portcommunicating through theflcon with thesuction portion of the a nnular' bl chamber.
  • the groove comm-unicatslthrou a further conduit with thebalancing cham er, a d
  • Fig. 3 is a longitudinal sectionalview of 'a'pre ferred embodiment of the present invention taken on line'3'-3 in Fig; 5; w Figfiis a longitudinal' 's'ectional view'iakenxen' line 44 in Fig.5; f Fig. 5 shows several partial cross-sect inn views on lines 5 5 and 5'-'5" in 'Figfiiandon line 5- 5 of Fig.4; and i Figssfij and 'Zillustrate details.
  • the apparatus T includes a cylindrical member @or stator formed 'with-aninner cylindrical oh yl ber containing a coaxial cylindrical rotor. 2.
  • transversal endface's of the rotor slidabl'y engagethe transversal endwalls of the member I; and, having a diametersmaller than tl'iatlof said inner cylindrical chamber defines inside the latteran annular chamber 5.
  • Bars or par titions 5,] are'securedfto the statorv l-Tat'two diametrically opposed pointsthereof and their machined faces a, b engage the peripherylof the rotor and fluidtightly subdivide the annular a groove l6 cut in one of the end walls of the;
  • the blades exert theirhydraulic' action as they move from the positions I' and 'IV towards the positions IIand V, as his then that they suckbehind 'them the" liquid admitted through the port ⁇ 9 and deliver in front of them into the port'I-ll the liquid sucked by the two preceding. blades.
  • the -out* put of the apparatus isperfectly constantat every moment and so isj'the speed of. flow pro vided care is taken to give-the ports 9 and Hi the same cross-sectional area as. the'annular blade chamber 5 Y 7 Grooves H! are provided in the stator l so as to short-circuit the spaces on either side.
  • the number of blades may be different from six and their radial displacement may be produced solely by mechanical means instead of being produced mechanically and hydraulically as disclosed hereinabo-ve.
  • a slope on the stator may for instance engage directly the edge of the blades.
  • the apparatus differs from the preceding one through the fact that the annular chamber 25 between the stator 26 and the rotor 27 extends only over a fraction of the length of said stator androtorq According to this embodiment 2.
  • cylinder member constituting the stator 26 is formed with a wider cylindrical bore 26a and a narrower cylindrical bore '26?) which are connected by a transversal annular surface portion 30., The wider bore is closed by an end wall 26'.
  • member 21 constituting the rotor is arranged within, the cylinder member 26 and has a wider portion 29 and a narrower portion 29' connected by a transversal annular surface portion 29".
  • the length of the rotor 21 is less than that of the stator and it is slidingly keyed to the shaft 3
  • the blades 32' are located inside recesses 32 parallel with the axis .of the rotor and arranged at the periphery" thereof.” Each blade is adapted to slide inside one-associated recess in'a direction parallel to said axis; said blades arein'contactingengagement. through their inner surface with the bell shaped cam 33, the outline of which is similar to that of the groove ['6 in the form of execution of Fig. 1.
  • This cam is secured to two partitions 34 diametrically opposed to one another and simi- I lar to the partitions 6 and I of the preceding form of execution but capable in the presentcas'e of sliding in a direction-parallel with the axis inside the cylinder member 26 along which they are guided, without being allowed any rotation.
  • Each of these partition-s 34' is provided with a cylindrical recess 3'5 forming a cylinder inside which may move apiston 3'6 bearing; against the cylinder-member 26.
  • the space between the bot tamer the cylinder 35 and its piston 36-communi cates through a channel to with a point of the chamber 25 for instance at which the fluid is under pressure (Fig; 5)".
  • Two prts 43 and 44 are provided invalv-e face4 lfyat .a distance from-one another: which is slightly greater than the width of the groove 39 and they arecQn lected respectively with the delivery portion and-with the suction portion of the blade chamber 2 5. through conduits 45 and, in the stator. -As in the preceding example-the suction port-41 and.
  • the blades 32 are urged by the pressure in the balancing chamber 3] into the annular blade chamber 25, and into contact .with' the cam means 3'3.
  • Cam means33 urge the blades into the balancing chamber and out of the blade chamber when the blades pass'over a partition 34.
  • forms'acontrol arrangement for the rotor 21, the axial position of which is depending on that of the slide valve.
  • Fig. 7 shows a modification of the slide valve 4*] which includes, "in this ca:se, *afplurality of ports. 43" and 441 "locatedat d-iiferen't distances from the position of equilibriu'n'i T of the groove 39, the cross-sectionahareasj of' which increase with the distance.
  • thei'o'utput of fluid through 'the'conduit 33 maybe sufiiciently considerable for producing a rapid return movement of the otor; moreover the" stabilisation of the rotor is improved as the gI'OQVBQSQIBglSt-BIS automatically with one of the DQIts4I3Tor 44' the output of which corresponds to the leak output producing a modifi'cation' in thepressure inside the chamber 31.
  • may be located at any, 'desired point of the statorbutpreferably inlg'portion thereof correspondingto suction.
  • I v 1 v my. invention. is i no means limited to e e ssh wn e crihe wh chhave b n given out-solely, byway of example.
  • Fig. 6 shows a modified controlof'the blades. According to said modification, the end portion 51 of each blade carries a projection 52 cappedby a rollerbearing rolling insidea cam arrangement, the strokeof theblade assumes-a s an v u at v r m be h hou l i whereas-with the above described system.
  • variable output apparatuses which of greatadvantager a v
  • the variable output apparatuses do include of necessity blades with a displacement parallel to theaxis although this arrangement is.
  • the appara tuses with a constant output may include blades adaptedto move parallelism with the axis in steadgof being arranged radially as in the example described,
  • a further improvement for the apparatus de
  • the axial displacement of the partitionsof the scribed in the case where the bladesare movable in parallelism with the axis of; r-otation, consists in giving the slots housing the blades stress-g sectional shape which is thrott'le'd down from the inner-end to the outer; end; the part of the blades which is'located insidesaid slots hasof course corresponding shape and preferably inorderto make the machining easier, said .crossesection should assume the shape of, a fraction of acir-' cumference'above onehalicircumference.
  • each slidable transverse partition such as 34 in Fig. 3 which is fitted in the stator may have such a cross-sectionthat it is restrained b its housingagainst any radial mo tion; for this purpose said cross-section ispreferab ly that-0f a circle portion greater thanhalf a circle, but it might also be swallow-tailed or have any othersimilar throttled shape.
  • a I piston member arranged within said cylinder member axially slidably andturnabl y relative to the same, and having two coaxially arranged cylindrical portions ending in transversalend races, namely, a narrower cylindrical portion fittinginto said narrower cylindricalboreandia udder eylindrical por'tion fitting into said wider cylindrical bore of-said cylinder member, and arranged therein seas-to form between one ofs'aid transversa-l'endfaces and said en'dwall of said cylinderfmember a balancing chamber, said c-ylindrica'l'portions of-said piston member bei g connected by a-' transversal annular surface 150 ti'on, whereby wi thin'said wider cylindrical bore of said' cylinder” member ablaklechamber is formedbeunded on opposite 'sides' by said' an'nular transversal surface portions of said cylinder member and
  • conduits beingconnected to the delivery portiorrbf said annular blade chamberandthe other being connected withfthesuction" portion of. said nnular blade chamber; the portsorsaid conduits being spaced from each other a-dista n'ce slightly?
  • a rotary-hydraulicapparatus comprising; in combinati f j a cylindermember formed with two coaxially arranged cylindrical b'o'res', namely, a; widercylindrical bore and a na'irr-ciwer cylindricalibore' connected by" a transversal annular surface pertibn, said 'cyli'nde'r member including an' e'nu walr closing said wider cylindrical bore at its -end spacedifrom said 'narrower cylindrical bore; a piston-member arrangeawitmn s'aid'cyl inner member axially slidably' and turnabl'y 'rel'ative to the; same; and having: two ccasianyan ranged", cylindrical portions; ending in trans"- versar and faces, namely; a narrower cylindrical portion fitting into said
  • said piston being also provided with a transversalcircular groove. in its cylindrical surface, and a conduit connecting said groove with said balancing chamber; means for rotating one of said members; at. least one blade member ar-- ranged in-s'aid recess. in said piston.
  • a rotary hydraulic apparatus according to elaim 2; and includingv mechanical ineans-jor urging; said blade member tomove along said recessinto a position projecting" into said blade chamber, said mechanical control means, being adjusted to-operate with a small time" lag with respect tothe force exerted by the vpressure in said balancing chamber so thatsaid' blade means are only moved by said mechanical means in case of; a ⁇ sudden drop of. pressure in saidbalancing chamber. 7
  • Arotaryhydraulic apparatus comprising i'n combination, a cylinder. rnjemberjformedwith two therein so as to form between one of said trans versal end faces and said end wall of said cylinder member a balancing chamber, said cylindrical portions of said piston member being connected by a transversal annular surface portion, whereby within said wider cylindrical bore of said cylinder member a blade chamber is formed bounded on opposite sides by said annular transversal surface portions of said cylinder member and said piston member, each of said annular surface portions being smaller than the surface of said end face of said piston member facing said balancing chamber, said piston member being provided in its cylindrical surface with.
  • a rotary hydraulic apparatus as in claim 4 further comprising means for adjusting the position of said valve member thereby causing the volume of said annular chamber to vary.
  • a rotary hydraulic apparatus comprising in combination, a cylinder member formed with two coaxially arranged cylindrical bores, namely, a wider cylindrical bore and a narrower cylindrical bore connected by a transversal annular surface portion, said cylinder member including an end wall closing said wider cylindrical bore at its end spaced from said narrower cylindrical bore; a piston member arranged within said cylinder member axially slidably and turnably relative to the same, and having two coaxially arranged cylindrical portions ending in transversal end faces, namely, a narrower cylindrical portion fitting into said narrower cylindrical bore and a wider cylindrical portion fitting into said wider cylindrical bore of said cylinder member, and arranged therein so as to form between one of said transversal end faces and said end wall of said cylinder member a balancing chamber, said cylindrical portions of said piston member being connected by a transversal annular surface portion, whereby within said wider cylindrical bore of said cylinder member a blade chamber is projecting portion of the blade member projecting through said blade chambersaid annular blade chamber into a delivery portion and
  • a rotary hydraulic apparatus including mechanical means for urging said blade member to move along said recess into a position projecting into said blade chamber, said mechaical control means being adjust'ed to operate with a small time lag with respect to the force exerted by the pressure in said balancing chamber so that said blade means are only moved by said mechanical means in case of a sudden drop of pressure in said balancing chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Reciprocating Pumps (AREA)
US705102A 1945-11-12 1946-10-23 Rotary blade apparatus adapted for use as a pumping or driving unit Expired - Lifetime US2607298A (en)

Priority Applications (1)

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US80924A US2691868A (en) 1946-10-23 1949-03-11 Rotary pump and motor hydraulic transmission

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FR2607298X 1945-11-12

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US2607298A true US2607298A (en) 1952-08-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714858A (en) * 1950-11-03 1955-08-09 Kepka Frank Rotary compressors or pumps, in combination with hydraulic controls, and mechanical controls in co-ordination therewith
US2977889A (en) * 1957-02-11 1961-04-04 James C Fisk Fluid pressure power converter
US6283728B1 (en) * 2000-01-05 2001-09-04 Constantin Tomoiu Gas powered rotary engine and compressor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US888838A (en) * 1906-02-28 1908-05-26 Caroline H Mueller Rotary pump.
US1365553A (en) * 1916-05-27 1921-01-11 Sheriff J Ed Transmission mechanism
US1497741A (en) * 1923-09-10 1924-06-17 Schneider Heinrich Fluid-operated change-speed gear
US1742215A (en) * 1927-03-29 1930-01-07 Reginald J S Pigott Rotary fluid unit
US1743977A (en) * 1927-11-28 1930-01-14 Viking Pump Company Rotary engine
US1797905A (en) * 1927-06-14 1931-03-24 George W Dooley Rotary pump
US1990750A (en) * 1931-03-02 1935-02-12 Gulf Res & Dev Corp Variable volume pump and hydraulic transmission
US2181962A (en) * 1935-07-06 1939-12-05 Keelavite Co Ltd Rotary engine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US888838A (en) * 1906-02-28 1908-05-26 Caroline H Mueller Rotary pump.
US1365553A (en) * 1916-05-27 1921-01-11 Sheriff J Ed Transmission mechanism
US1497741A (en) * 1923-09-10 1924-06-17 Schneider Heinrich Fluid-operated change-speed gear
US1742215A (en) * 1927-03-29 1930-01-07 Reginald J S Pigott Rotary fluid unit
US1797905A (en) * 1927-06-14 1931-03-24 George W Dooley Rotary pump
US1743977A (en) * 1927-11-28 1930-01-14 Viking Pump Company Rotary engine
US1990750A (en) * 1931-03-02 1935-02-12 Gulf Res & Dev Corp Variable volume pump and hydraulic transmission
US2181962A (en) * 1935-07-06 1939-12-05 Keelavite Co Ltd Rotary engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714858A (en) * 1950-11-03 1955-08-09 Kepka Frank Rotary compressors or pumps, in combination with hydraulic controls, and mechanical controls in co-ordination therewith
US2977889A (en) * 1957-02-11 1961-04-04 James C Fisk Fluid pressure power converter
US6283728B1 (en) * 2000-01-05 2001-09-04 Constantin Tomoiu Gas powered rotary engine and compressor

Also Published As

Publication number Publication date
ES176152A1 (es) 1947-01-16

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