US3227090A - Engine or pump having rotors defining chambers of variable volumes - Google Patents

Engine or pump having rotors defining chambers of variable volumes Download PDF

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Publication number
US3227090A
US3227090A US431406A US43140665A US3227090A US 3227090 A US3227090 A US 3227090A US 431406 A US431406 A US 431406A US 43140665 A US43140665 A US 43140665A US 3227090 A US3227090 A US 3227090A
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United States
Prior art keywords
rings
casing
shaft
chambers
fluid
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Expired - Lifetime
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US431406A
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English (en)
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Bartolozzi Luigi
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F01C1/063—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them
    • F01C1/073—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them having pawl-and-ratchet type drive
    • 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
    • F04C2/02—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C2/063—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them

Definitions

  • the invention relates to a machine or mechanism operable with compressed gas or a fluid as a motor or as a pump.
  • the invention is applicable also to use in an internal combustion engine.
  • the machine includes a casing in which is an annulan shaped chamber.
  • the casing is an axial shaft.
  • rotors in the form of rings with radial pistons are rotated in only one and same direction.
  • the rings rotate around the same axis and are alternately moved in such a manner that while one ring is rotating, the other one is fixed and vice-versa.
  • Concentric with and inside the annular chamber is a distributor whose motion is in a direction contraiy to that of the rings and pistons. This motion is relatively very slow and takes place by short steps or trips by etlect of a stress which may also be due to the fluid current passing through the distributor.
  • each of the rings has a pair of diametrally opposed radial pistons which extend for the entire radial section of the annular chamber.
  • the pistons borne by one of the rings extend over the other ring as a seal, besides forming a seal with the outer end and lateral walls of the casing.
  • a distributor rotor In the interior of the rings there is provided a distributor rotor, which moves at controlled steps in a direction opposite to the direction of motion of the rings to determine the succession of cycles in the machine.
  • the distributor rotor is provided with fluid or gas supply ports and discharge ports.
  • the distributor rotor also has ignition means and means for determining instants of increase of pressure and temperature of the fluid in the combustion chamber during the ignition stage.
  • the two rings with the associated radial pistons are provided with mechanical means to permit movements in only one direction to each of the two rings. Further mechanical means stop the rings after having accomplished an angular stroke equal to 360/n, where n is the number of the radial pistons of each of the rings, minus a small angular amount.
  • FIGURE 1 is a cross-section of a steam, gas or fluid driven engine embodying the invention.
  • FIGURE 2 is a section taken along the broken line II-II of FIG. 1.
  • FIGURE 3 is a perspective View of two rings with associated pistons.
  • FIGURES 4, 5, 6 and 7 are sectional views similar to FIG. 1 showing the operation cycle of the machine.
  • FIGURE 8 is a sectional view taken along the line VIII-VIII of FIG. 2 showing structure allowing rotational motion of the rings in only one direction.
  • FIGURES 9 and 10 are sectional views of a structure for stopping rotation of the rings and controlling rotaice tion of the distributor internal with respect to the rings.
  • FIGURE 11 is a local section taken along the broken line XI-XI of FIG. 9.
  • FIGURE 12 is a sectional view partially diagrammatic of another embodiment of the invention.
  • FIGURES l3 and 14 are transverse and longitudinal sections similar to FIGS. 1 and 2 respectively, of an internal combustion engine embodying the .invention.
  • an outer cylindrical casing I is provided with end walls 2. Coaxially with and inside the casing are two annular rings 3, 4. The rings are located side by side and cooperate with the end walls 2 and the outer wall I to define an annular chamber.
  • the rings 3, 4 respectively carry diametrally opposite radial pistons 5, s and 7, 8 which are extended radially of the entire section of the annular chamber; these radial pistons are internally hollow.
  • Each piston extends axially beyond one of the rings abutting on another ring located alongside and coaxial.
  • the pistons form seals between the rings and outer casing wall. Adjacent each of the radial pistons there are provided ports 9, I0 and 11, 12 respectively.
  • a drive shaft 15 is mounted by means of bearings 15a on end flanges I4, which are secured to the casing formed by the members I, 2, 2. These flanges have fluid or gas supply passage 16 and discharge conduit 17, respectively.
  • a freely rotatable cylindrical distributor rotor 21 which is conentric with and internal to rings 3, 4 and located to seal with the internal surfaces of rings 3 and 4 and to cooperate with the ports 9 to 12.
  • the rotor has radial extensions which define with the rings 3 and 4, a pair of supply or discharge chambers 23 which are extended circumferentially rather widely.
  • the radial walls of the distributor rotor 21 also define two narrow discharge or supply chambers 24.
  • the two wide chambers 23 communicate with the manifold of the member 18 and thus with the supply passage 16.
  • the rotor 21 forms fins 21a, which owing to the entering fluid current tend to rotate the rotor 21 in a direction contrary to that of the rings 3 and 4.
  • the rings 3 and 4 are capable of rotating in only one direction and they rotate alternately and transmit the movement (operating as motor) to the shaft IS.
  • the distributor rotor 21 is capable of rotating only in the opposite direction.
  • ring 3 is shown integral with an annular projection 3a, which is provided with inner and outer circumferentially extending tapered or wedge-like slots SI and S2.
  • a similar projection 40 (see FIG. 2) is provided integral with the ring 4.
  • Coupling rollers RI and R2 are freely disposed for rolling in the slots.
  • the narrowest width of the slots is less than the diameters of the rollers.
  • the annular projection 3a is radially interposed between the member 18, which is secured to shaft 15, and a step formed by the corresponding end wall 2, which is stationary; similarly the projection 4a is radially interposed between the member 19, secured to the shaft 15 and the other stationary wall 2.
  • the distributor rotor 21 is free- 1y rotatable around the shaft in the space between the members 18 and 19. When ring 3 is urged by fluid pressure to rotate in a clockwise direction as viewed in FIG. 8, rollers R2 engage member 18 so that the ring 3 is in effect coupled to the shaft 15.
  • Ring 4 is provided with a similar annular projection 4a with slots as shown in FIG. 2 and the rollers would in a similar manner be coupled to the shaft 15 via member 19.
  • the shaft 15 is free to rotate in a clockwise direction with respect to the rings 3 and 4 even when these rings are stationary since the rollers R2 roll away from the narrower parts of the slots S2.
  • FIGS. 9, 10 and 11 show in detail the structure or mechanism for stopping the motion of the rotor of the distributor 21 each time after a ring 3 or 4 has moved slightly less than 180 the distributor rotor 21 rotating a few degrees.
  • the distributor 21 in its central part is provided with two tapered inclined profiles 34 terminating with two teeth 34a.
  • the members which have to lock the teeth 34a are two pawls 31 and 32, hinged in the rings 4 and 3 respectively.
  • the pawl 31 of the ring 4 (see in particular FIG. 10) is made of a link rod 31b hinged in 31a! to the ring 4 and hearing at the end a roller 31c and an articulated bracket 31d.
  • the pawl 32 is similar to that 31.
  • In the rings 3 and 4 there are provided inclined profiles and 35a, tapered too as those 34 and facing these latter; said inclined profiles 35 and 35a of each ring are made up along the internal edge of the ring adjaccntly the other ring.
  • each pawl borne by one of the rings acts in contact with the internal surface of the other ring and with the bottom surface of the inclined profile of the other ring; to this purpose the bracket is shaped with a curved surface substantially corresponding to those on which it slides.
  • the bracket of the pawl of a ring is in correspondence with the concentric portion of the other ring internal surface, it prevents the pawl from rotation outwardly and this pawl retains the distributor 21 resting and pressing against the pawl with one of the shoulders 34a; in FIG. 9 the pawl 31 on the contrary is retaining the distributor and is stressed to rotate in clockwise direction until it lies down, being precluded therefrom by its own bracket contrasting with the internal profile of the ring 3.
  • the distributor then, owing to the fluid stressing on the fins 21a, rotates until approaching with the tooth 31a the pawl 32 (which now is not more allowed to move from the radial retaining position).
  • the distributor 21 By moving the distributor 21 the feed is changed over and it is now the ring 3 which is stressed to rotate in an opposite direc tion and thus sticks on the casing 2, 14, as explained above;
  • the ring 4 is now thrusted by the fluid and begins now to rotate operating the pawl 31 lying down; the cycle goes on as described.
  • the stops of the distributor 21 are controlled only by the rings 3 and 4 by means of the angular movements of the pawls retaining the rotor while the distributor is only stressed to rotate in a direction opposite to that of the motor.
  • the pistons are moved by the gases which, at the beginning of the stroke, find the supply ports always open.
  • FIGS. 1 and 4 to 7 The operating cycle of the engine is illustrated in FIGS. 1 and 4 to 7 where it is assumed that the rotation of the pistons 5-8 is clockwise and the rotation of the distributor rotor 21 is counterclockwise.
  • a supply of fluid under pressure passes from the passage 16 through the openings 18a, the chamhers 23 and the ports 10 and 9 to the cavities A and C, defined between pistons 6, 8 and 5, 7 respectively.
  • the cavities B and D between pistons 5, 8 and 6, '7 are put in communication through the ports 11 and 12 with the discharge chambers 24 and thus through the openings 19a with the discharge passage 17.
  • each of the rotary rings 3, 4 occurs.
  • the radial pistons of each ring cyclically follow the pistons of the other ring.
  • the pistons of one rotary ring are sta tionary while the other ones are in motion and vice-versa.
  • the distributor rotor 21 is stressed in the counterclockwise direction by an external drive means or by the supply fluid through the fins 21a integral with the distributor rotor 21, which fins impart a force to the distributor rotor 21.
  • the distributor 21 may be stressed by an external means, such as a tubular shaft around the shaft 15.
  • the cylindrical casing 41 is similar to casing 1, 2 of FIGS. 1 and 2.
  • Casing 41 operates likewise on the stationary shaft 42. The motions of the parts are reversed from those previously described.
  • the casing 41 moves with respect to the shaft; means similar to those S1, R1 transmit the motion to the casing 41, while means similar to those S2, R2 prevent the rings 3 and 4 from rotation in a direction opposite to that of the casing 41.
  • the feed and discharge take place, in this case, through the stationary shaft.
  • FIGS. 13 and 14 which show an internal combustion engine
  • the system is substantially equivalent to that of FIGS. 110.
  • the members which form the chambers of variable volume are substantially equivalent; 1fi1, 162, 1193, 1114, 105, 1%, 167, 198 denote members equivalent to those 1 to 8.
  • the dis tribution system is modified in that a distributor rotor 121 is located inside the rings 10? and 104 and forms a supply chamber 121a. This chamber extends circumferentially through an angle substantially equal to the stroke of each radial piston.
  • Chamber 121d extends from the periphery of the distributor 121 to a central cavity therein through which a shaft 122 extends.
  • shaft 122 there is provided a central cavity communicating with the chamber 1210! through radial slots 124 distributed circumferentially in the shaft 122; in said cavity ignition plugs 123 project, axially arranged on the shaft 122.
  • a linkage 125 or other suitable means allows control of the ignition system, starting from a cam profile of the rotating members 3 and 4.
  • the fuel supply is received through the slot 116 corresponding to the slot of ring 3 in FIG. 3.
  • the discharge from the chamber B is determined through the opening 111 corresponding to that of slot ll in ring 4.
  • the ignition takes place through the chamber 121d and the opening 109 corresponding to slot 9 of ring 3.
  • the ignition is determined by the spark plugs 123 which can easily be removed for cleaning and replacement.
  • the discharge stage develops through the opening 112 in the discharge chamber 12112. Opening 112 corresponds to slot 12 of ring 4. Departing from the arrangement of FIG. 13, the pair of pistons 5 and a move in the direction of the arrows as indicated owing to the expansion of the chamber.
  • the increase of volume of the chamber C is determined by the combustion and thus the expansion and the increase of volume of chamber C itself. This increase causes the gas intake into chamber A.
  • the chambers B and D are then reduced in volume. In the chamber B there is determined compression of the gas, the opening 111 being closed.
  • the chamber D effects discharge through the openings 112 and 1210.
  • a pressurized fluid engine comprising in combinaon: U (a) a stationary closed generally cylindrical casing;
  • (h) means for coupling the rings to the shaft for rotating the shaft upon sequential angular movements of the rings and for allowing rotation of the shaft; said distributor rotor having inclined. passages operating as vanes actuated by said fluid to cause rotation of the rotor in a direction opposite to that of the rings; and
  • the means for limiting each of the rings to rotation in one direction comprises on the ring slots having tapered sides facing the casing, and rollers disposed in the slots for engaging said each ring to the casing, at narrower portions of the slots.
  • each of the rings comprises on the ring slots having tapered sides facing said cylindrical members and rollers in said slots for engaging between said rings and members at narrower portions of the slots.
  • (j) means associated with the distributor rotor to rotate the distributor rotor slowly in a direction opposite the shaft;
  • (k) means on each of the rings to determine interniittent rotation of the distributor rotor through small angles while the rings alternately rotate through angles of slightly less than 180;
  • (j) means associated with the distributor rotor to rotate the rotor slowly in a direction opposite to that of the rings;
  • a pump comprising in combination:
  • (j) means for rotating said distributor rotor slowly and intermittently in a direction opposite to the shaft;
  • (k) means on the rings to determine intermittent rotation of the distributor through small angles and to determine intermittent rotation of the rings for angles slightly less than (1) pistons on each of said rings extending radially to the casing and defining four other chambers having variable volumes; said rings having passages communicating between the chambers of variable volume and the intake and discharge chambers for feeding fluid towards and from the chambers of variable volume, whereby fluid enters said inlet port and leaves said discharge port while the shaft is rotated and the rings alternately rotate in said single direction while said other chambers alternately expand and contract as fluid enters and leaves the same.
  • An engine comprising in combination:
  • ignition means axially mounted on said shaft and operable in said ignition chamber
  • (j) means cooperating between the rings and said members to couple the rings to the shaft for turning the shaft during angular movements of the rings;
  • (1:) means in the distributor rotor for causing the rotor to be slowly rotated in a direction opposite to the drive shaft by flowing fluid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
US431406A 1960-12-02 1965-02-09 Engine or pump having rotors defining chambers of variable volumes Expired - Lifetime US3227090A (en)

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397680A (en) * 1966-04-19 1968-08-20 Joel B. Guin Reversing blade rotary engine
US3767331A (en) * 1970-07-16 1973-10-23 E Klesatschke Rotary piston machine
US4127367A (en) * 1977-04-06 1978-11-28 Smith Russell I Rotary mechanism with resilient drive means
US4279577A (en) * 1979-08-06 1981-07-21 Appleton John M Alternating piston rotary engine with latching control mechanism and lost motion connection
US4373879A (en) * 1981-10-26 1983-02-15 Picavet Rudolf P Alternating rotor motor with spring clutches
US4390327A (en) * 1981-10-26 1983-06-28 Picavet Rudolf P Alternating rotor motor with rotor positioning sensors
US4738235A (en) * 1985-11-06 1988-04-19 Raincor, Inc. Rotary engine having controller and transfer gears
US5040957A (en) * 1990-05-21 1991-08-20 Smith Russel I Co-rotor engine with valve system
US6132190A (en) * 1998-08-20 2000-10-17 Tverskoy; Boris S. Rotary device
US20060124102A1 (en) * 2003-06-09 2006-06-15 Douglas Bastian Rotary engine system
WO2006083197A1 (fr) * 2005-02-02 2006-08-10 Lev Nikolaevich Maksimov Moteur pneumatique a soufflet
US20110027113A1 (en) * 2009-08-03 2011-02-03 Johannes Peter Schneeberger Crank Joint Linked Radial and Circumferential Oscillating Rotating Piston Device
US20110023815A1 (en) * 2009-08-03 2011-02-03 Johannes Peter Schneeberger Crank Joint Linked Radial and Circumferential Oscillating Rotating Piston Device
WO2011035789A2 (es) * 2009-09-23 2011-03-31 Loayza Penaloza Pablo Alfredo Motor de combustión interna de paletas rotativas
US20120266841A1 (en) * 2011-04-25 2012-10-25 Seyd Mehdi Sobhani Rice, ricg, & rc
WO2015010780A3 (de) * 2013-07-19 2015-03-26 Meier Gerd E A Rotationskolbenmaschine
RU2578383C1 (ru) * 2015-02-17 2016-03-27 Вячеслав Иванович Негруца Роторно-лопастная машина
US20160326875A1 (en) * 2009-01-06 2016-11-10 Scott Hudson Rotary energy converter with retractable barrier
RU2626187C1 (ru) * 2016-06-09 2017-07-24 Вячеслав Иванович Негруца РОТОРНАЯ МАШИНА (варианты)
RU2626186C1 (ru) * 2016-05-30 2017-07-24 Вячеслав Иванович Негруца РОТОРНО-ЛОПАСТНАЯ МАШИНА (варианты)
RU2632635C1 (ru) * 2016-06-20 2017-10-06 Вячеслав Иванович Негруца РОТОРНО-ЛОПАСТНАЯ МАШИНА (варианты)
RU2636595C1 (ru) * 2016-11-21 2017-11-24 Вячеслав Иванович Негруца Роторно-лопастной двигатель (варианты)
US20220205446A1 (en) * 2019-06-27 2022-06-30 Putzmeister Engineering Gmbh Thick matter pump and method for conveying thick matter

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US886279A (en) * 1907-06-08 1908-04-28 Ewald Louis Vervoort Rotating internal-combustion engine.
US2149143A (en) * 1936-10-31 1939-02-28 American Eng Co Ltd Pump or motor
US2367676A (en) * 1943-07-27 1945-01-23 James E Griffith Rotary internal-combustion engine
US2413734A (en) * 1942-01-05 1947-01-07 Walter H Schroeder Rotary internal-combustion engine
US2426361A (en) * 1942-12-09 1947-08-26 Lester Engineering Co Variable delivery alternating piston pump
US2620778A (en) * 1949-11-12 1952-12-09 Duckworth Thomas Alternating piston rotary motor
US2756728A (en) * 1954-01-21 1956-07-31 George E Mallinckrodt Drive mechanism for rotary engines and the like
US2810371A (en) * 1956-09-21 1957-10-22 Bancroft Charles Rotary piston gas generator
US2816527A (en) * 1953-10-28 1957-12-17 Palazzo Quirino Rotary four-stroke engine
US2852007A (en) * 1957-10-28 1958-09-16 Bancroft Charles Rotary piston engine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US886279A (en) * 1907-06-08 1908-04-28 Ewald Louis Vervoort Rotating internal-combustion engine.
US2149143A (en) * 1936-10-31 1939-02-28 American Eng Co Ltd Pump or motor
US2413734A (en) * 1942-01-05 1947-01-07 Walter H Schroeder Rotary internal-combustion engine
US2426361A (en) * 1942-12-09 1947-08-26 Lester Engineering Co Variable delivery alternating piston pump
US2367676A (en) * 1943-07-27 1945-01-23 James E Griffith Rotary internal-combustion engine
US2620778A (en) * 1949-11-12 1952-12-09 Duckworth Thomas Alternating piston rotary motor
US2816527A (en) * 1953-10-28 1957-12-17 Palazzo Quirino Rotary four-stroke engine
US2756728A (en) * 1954-01-21 1956-07-31 George E Mallinckrodt Drive mechanism for rotary engines and the like
US2810371A (en) * 1956-09-21 1957-10-22 Bancroft Charles Rotary piston gas generator
US2852007A (en) * 1957-10-28 1958-09-16 Bancroft Charles Rotary piston engine

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397680A (en) * 1966-04-19 1968-08-20 Joel B. Guin Reversing blade rotary engine
US3767331A (en) * 1970-07-16 1973-10-23 E Klesatschke Rotary piston machine
US4127367A (en) * 1977-04-06 1978-11-28 Smith Russell I Rotary mechanism with resilient drive means
US4279577A (en) * 1979-08-06 1981-07-21 Appleton John M Alternating piston rotary engine with latching control mechanism and lost motion connection
US4373879A (en) * 1981-10-26 1983-02-15 Picavet Rudolf P Alternating rotor motor with spring clutches
US4390327A (en) * 1981-10-26 1983-06-28 Picavet Rudolf P Alternating rotor motor with rotor positioning sensors
US4738235A (en) * 1985-11-06 1988-04-19 Raincor, Inc. Rotary engine having controller and transfer gears
US5040957A (en) * 1990-05-21 1991-08-20 Smith Russel I Co-rotor engine with valve system
US6132190A (en) * 1998-08-20 2000-10-17 Tverskoy; Boris S. Rotary device
US7441534B2 (en) 2003-06-09 2008-10-28 Douglas Bastian Rotary engine system
US20060124102A1 (en) * 2003-06-09 2006-06-15 Douglas Bastian Rotary engine system
WO2006083197A1 (fr) * 2005-02-02 2006-08-10 Lev Nikolaevich Maksimov Moteur pneumatique a soufflet
US20160326875A1 (en) * 2009-01-06 2016-11-10 Scott Hudson Rotary energy converter with retractable barrier
US10830047B2 (en) 2009-01-06 2020-11-10 Scott Hudson Rotary energy converter with retractable barrier
US10208598B2 (en) * 2009-01-06 2019-02-19 Scott Hudson Rotary energy converter with retractable barrier
US20110027113A1 (en) * 2009-08-03 2011-02-03 Johannes Peter Schneeberger Crank Joint Linked Radial and Circumferential Oscillating Rotating Piston Device
US20110023815A1 (en) * 2009-08-03 2011-02-03 Johannes Peter Schneeberger Crank Joint Linked Radial and Circumferential Oscillating Rotating Piston Device
US8434449B2 (en) * 2009-08-03 2013-05-07 Johannes Peter Schneeberger Rotary piston device having interwined dual linked and undulating rotating pistons
US10001011B2 (en) * 2009-08-03 2018-06-19 Johannes Peter Schneeberger Rotary piston engine with operationally adjustable compression
WO2011035789A2 (es) * 2009-09-23 2011-03-31 Loayza Penaloza Pablo Alfredo Motor de combustión interna de paletas rotativas
WO2011035789A3 (es) * 2009-09-23 2011-06-30 Loayza Penaloza Pablo Alfredo Motor de combustión interna de paletas rotativas
US20120266841A1 (en) * 2011-04-25 2012-10-25 Seyd Mehdi Sobhani Rice, ricg, & rc
WO2015010780A3 (de) * 2013-07-19 2015-03-26 Meier Gerd E A Rotationskolbenmaschine
WO2016133424A1 (ru) * 2015-02-17 2016-08-25 Вячеслав Иванович НЕГРУЦА Роторно-лопастная машина (варианты)
RU2578383C1 (ru) * 2015-02-17 2016-03-27 Вячеслав Иванович Негруца Роторно-лопастная машина
RU2626186C1 (ru) * 2016-05-30 2017-07-24 Вячеслав Иванович Негруца РОТОРНО-ЛОПАСТНАЯ МАШИНА (варианты)
WO2017209648A1 (ru) * 2016-05-30 2017-12-07 Вячеслав Иванович НЕГРУЦА Роторно-лопастная машина (варианты)
RU2626187C1 (ru) * 2016-06-09 2017-07-24 Вячеслав Иванович Негруца РОТОРНАЯ МАШИНА (варианты)
WO2017213546A1 (ru) * 2016-06-09 2017-12-14 Вячеслав Иванович НЕГРУЦА Роторная машина (варианты)
RU2632635C1 (ru) * 2016-06-20 2017-10-06 Вячеслав Иванович Негруца РОТОРНО-ЛОПАСТНАЯ МАШИНА (варианты)
WO2017222423A1 (ru) * 2016-06-20 2017-12-28 Вячеслав Иванович НЕГРУЦА Роторно-лопастная машина (варианты)
RU2636595C1 (ru) * 2016-11-21 2017-11-24 Вячеслав Иванович Негруца Роторно-лопастной двигатель (варианты)
WO2018093296A1 (ru) * 2016-11-21 2018-05-24 Вячеслав Иванович НЕГРУЦА Роторно-лопастной двигатель (варианты)
US20220205446A1 (en) * 2019-06-27 2022-06-30 Putzmeister Engineering Gmbh Thick matter pump and method for conveying thick matter

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Publication number Publication date
IT637255A (de)
DE1401392A1 (de) 1969-07-31

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