PL146450B1 - Rotary cam-type piston engine in particular for use as hydraulic engine - Google Patents

Rotary cam-type piston engine in particular for use as hydraulic engine Download PDF

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Publication number
PL146450B1
PL146450B1 PL25154385A PL25154385A PL146450B1 PL 146450 B1 PL146450 B1 PL 146450B1 PL 25154385 A PL25154385 A PL 25154385A PL 25154385 A PL25154385 A PL 25154385A PL 146450 B1 PL146450 B1 PL 146450B1
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PL
Poland
Prior art keywords
cam
curvature
engine
length
hump
Prior art date
Application number
PL25154385A
Other languages
Polish (pl)
Other versions
PL251543A1 (en
Inventor
Bohdan Sieniawski
Jerzy Potulski
Dariusz Sieniawski
Original Assignee
Zaklady Urzadzen Okretowych Hy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zaklady Urzadzen Okretowych Hy filed Critical Zaklady Urzadzen Okretowych Hy
Priority to PL25154385A priority Critical patent/PL146450B1/en
Priority to DE19853542913 priority patent/DE3542913A1/en
Priority to SU853991834A priority patent/SU1403993A3/en
Publication of PL251543A1 publication Critical patent/PL251543A1/en
Publication of PL146450B1 publication Critical patent/PL146450B1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/103Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)
  • Retarders (AREA)
  • Valve Device For Special Equipments (AREA)

Description

Przedmiotem wynalazku jest silnik obiegowo-krzywkowy, zwlaszcza jako silnik hyd¬ rauliczny przystosowany do pracy w duzym zakresie obrotów i cisnien.Znany dotychczas silnik z patentu nr 71 329 sklada sie z krzywki zewnetrznej - - statora, posiadajacej cztery uzebione garby i umieszczonej wspólsrodkowo krzywki wew¬ netrznej stanowiacej rotor, posiadajacej trzy uzebione garby. Obie uzebione krzywki wspólpracuja z siedmioma uzebionymi satelitami, które przetaczaja sie miedzy uzebionymi biezniami krzywek. Doprowadzenie i odprowadzenie cieczy do komór roboczych miedzy sate¬ litami odbywa sie otworami wykonanymi promieniowo w krzywce wewnetrznej. Wyloty tych ot¬ worów znajduja sie na polowie dlugosci drogi satelity na wznios garbu. W wiekszosci obecnie produkowanych silników otwory doprowadzajace ciecz do komór i odprowadzajace znajduja sie w pokrywach czolowych. Umieszczone sa one na polowie drogi satelity na wznios garbu krzywki zewnetrznej.Niedogodnoscia takiego rozwiazania silnika sa male przekroje otworów, które og¬ raniczaja predkosc obrotowa silnika z uwagi na wystepujace w nich dlawienie. Inna niedo¬ godnoscia jest oslabienie zebów w miejscu przejscia satelity przez otwory zasilajace spowodowane duzym odchyleniem punktów stycznosci uzebien krzywych od punktów lezacych na srednicy satelity.Celem rozwiazania wedlug wynalazku Jest usuniecie tych niedogodnosci i skonstru¬ owanie silnika obiegowo-krzywkowego o lepszych parametrach, zwlaszcza predkosci obroto¬ wej i wytrzymalosci uzebien w miejscach przejscia satelity przez otwory zasilajace. 146 4502 146 450 Cel ten osiagnieto w rozwiazaniu silnika obiegowo-krzywkovego skladajacego sie z krzywki zewnetrznej - statora, posiadajacej cztery krzywizny w postaci garbu, krzywki wewnetrznej - rotora, posiadajacej trzy krzywizny w postaci garbów oraz satelitów zaze¬ biajacych sie z nimi, którego istota polega na tym, ze na odcinku luku krzywizny krzywki zewnetrznej wyznaczonym przez ramiona kata przyjmujacego wartosc 7 do 8 stopni od osi symetrii, krzywizna krzywki zewnetrznej Jest wypukla. Wierzcholek tego kata lezy w srod¬ ku okregu stanowiacego krawedz zewnetrzna krzywki zewnetrznej. Dlugosc odcinka wypuklego krzywizny krzywki zewnetrznej stanowi 1/6 do 1/7 dlugosci krzywizny mierzonej od punktu najdalej polozonego w stosunku do srodka krzywki.Zaleta takiego rozwiazania wynikajacego z uksztaltowania krzywizn krzywki zew¬ netrznej Jest zwiekszenie otworów doplywu cieczy umozliwiajace w efekcie okolo dwukrotne zwiekszenie predkosci obrotowej silnika. Inna zaleta wynikajaca z rozwiazania wedlug wy¬ nalazku Jest zblizenie punktów styku krzywizn z satelita do punktów lezacych na srednicy satelity i tym samym zwiekszenie wytrzymalosci uzebien krzywek i satelity w miejscu przejscia satelity przez otwory zasilajace.Przedmiot wynalazku Jest pokazany w przykladzie wykonania na rysunku, przedsta¬ wiajacym schematycznie rzut silnika obiegowo-krzywkowego.Silnik obiegowo-krzywkowy sklada sie z dwóch i-ebionych krzywek, to jest zew¬ netrznej krzywki 1 stanowiacej stator, która posiada cztery krzywizny 5 w postaci garbu skierowane do wewnatrz oraz wewnetrznej krzywki 2 stanowiacej rotor i posiadajacej trzy ,krzywizny 6 w postaci garbu skierowane na zewnatrz. Miedzy uzebionymi biezniami krzywek 112 znajduje sie siedem uzebionych satelitów 3. W krzywce zewnetrznej 1 znajduja sie zasilajace otwory 4# W celu osiagniecia maksymalnie duzych otworów zasilajacych, ko¬ rzystnie obejmujacych satelity 3 w miejscach przelaczenia komór z zasilania na odplyw, w polozeniu pokazanym na rysunku, krzywizny 5 zewnetrznej krzywki 1 na odcinku wyznaczonym przez kat octylko o wartosci 7 do 8 stopni od osi symetrii maja ksztalt wypukly. Dlugosc czesci wypuklej krzywizny 5 krzywki stanowi odcinek a o dlugosci 1/6 do 1/7 dlugosci krzywizny 5 to jest krzywizny od punktu najdalej polozonego do punktu najblizej polozo¬ nego w stosunku do srodka krzywki.Zastrzezenia patentowe 1. Silnik obiegowo-krzywkowy, zwlaszcza jako silnik hydrauliczny skladajacy sie z krzywki zewnetrznej - statora, posiadajacego cztery krzywizny w postaci garbu skierowa¬ ne do wnetrza i krzywki wewnetrznej - rotora, posiadajacej trzy krzywizny w postaci gar¬ bu skierowane na zewnatrz oraz satelitów, które pozostaja z nimi w ciaglym zazebieniu, znamienny tym, ze na odcinku (a) luku krzywizny (5) zewnetrznej krzywki (1) wyznaczonym przez ramiona kata (pty o wierzcholku lezacym w srodku okregu stanowiacego krawedz zewnetrzna zewnetrznej krzywki (1) przyjmujacego wartosci 7 do 8 stopni od osi symetrii, krzywizna krzywki (1) jest wypukla. 2. Silnik wedlug zastrz. 1, znamienny tym, ze dlugosc odcinka (a) luku krzywizny (5) zewnetrznej krzywki (1) stanowi 1/6 do 1/7 dlugosci krzywizny (5), to Jest krzywizny od punktu najdalej polozonego w stosunku do srodka krzywki (1).146 450 ? 2 3 oC O O a PLThe subject of the invention is a rotary-lobe motor, especially as a hydraulic motor adapted to work in a large range of revolutions and pressures. The motor known so far from the patent No. 71 329 consists of an external cam - - stator, having four toothed lobes and an internal cam located centrally. The net, constituting the rotor, has three toothed humps. Both toothed cams work with the seven toothed satellites which roll between the toothed cam tracks. The supply and discharge of the liquid to the working chambers between the satellites takes place through holes made radially in the inner cam. The outlets of these holes are halfway along the path of the satellite to the top of the hump. In most engines produced today, the liquid supply and drainage holes are located in the front covers. They are located halfway up the satellite's path, up to the shear of the outer cam. The disadvantage of this engine design is the small cross-sections of the holes which limit the engine speed due to the throttling occurring in them. Another inconvenience is the weakening of the teeth at the point where the satellite passes through the feed holes due to the large deviation of the contact points of the teeth of the curves from the points on the diameter of the satellite. The aim of the solution according to the invention is to eliminate these inconveniences and to construct a rotary-and-cam motor with better parameters, especially rotation and strength of teeth in places where the satellite passes through the feed holes. 146 4502 146 450 This goal was achieved in the solution of a rotary-cam motor consisting of an external cam - the stator, having four curves in the form of a hump, an internal cam - a rotor, having three curves in the form of humps and satellites interlocking with them, the essence of which is consists in the fact that on the section of the arc of curvature of the outer cam defined by the arms of the angle taking a value of 7 to 8 degrees from the axis of symmetry, the curvature of the outer cam is convex. The top of this angle lies in the center of the circle constituting the outer edge of the outer cam. The length of the convex section of the outer cam is 1/6 to 1/7 of the length of the curvature measured from the farthest point to the center of the cam. The advantage of this by shaping the curvature of the outer cam is to increase the liquid flow openings, thus making it possible to double the speed of rotating engine. Another advantage resulting from the solution according to the invention is that the points of contact of the curvatures with the satellite are brought closer to the points on the diameter of the satellite and thereby increase the strength of the teeth of the cams and the satellite at the point where the satellite passes through the feed holes. The subject of the invention is shown in the example of the embodiment in the figure, shown here. A schematic view of the rotary lobe motor. The rotary lobe motor consists of two grooved cams, i.e. an outer stator cam 1 which has four hump-like curves 5 towards the inside and an inner cam 2 constituting the rotor and having three, the hump 6 curves directed outwards. Between the toothed tracks of the cams 112 there are seven toothed satellites 3. In the outer cam 1 are feed holes 4 # In order to achieve the largest possible feed holes, preferably covering the satellites 3 at the point of switching chambers from power to drain, in the position shown in the figure. , the curvature 5 of the outer cam 1 over the section defined by the angle only 7 to 8 degrees from the axis of symmetry have a convex shape. The length of the convex portion of the curvature 5 of the cam is a length of a length of 1/6 to 1/7 of the length of the curvature 5, i.e. the curvature from the furthest point to the point closest to the center of the cam. Disclaimers 1. A rotary cam motor, especially as a hydraulic motor consisting of an outer cam - a stator having four hump-like curves towards the inside, and an inner cam - a rotor having three hump-like curves directed outwards and satellites that remain with them in continuous mesh, characteristic that on the segment (a) of the curvature arc (5) of the outer cam (1) defined by the angle arms (pts with their apex in the center of the circle constituting the outer edge of the outer cam (1) assuming values 7 to 8 degrees from the axis of symmetry, the cam curvature 2. An engine according to claim 1, characterized in that the length of the section (a) of the curvature arc (5) of the outer cam (1) is 1/6 to 1/7 of the length of the curvature (5), it is the curvature from the farthest point from the center of the cam (1). 146 450? 2 3 oC O O a PL

Claims (2)

Zastrzezenia patentowe 1. Silnik obiegowo-krzywkowy, zwlaszcza jako silnik hydrauliczny skladajacy sie z krzywki zewnetrznej - statora, posiadajacego cztery krzywizny w postaci garbu skierowa¬ ne do wnetrza i krzywki wewnetrznej - rotora, posiadajacej trzy krzywizny w postaci gar¬ bu skierowane na zewnatrz oraz satelitów, które pozostaja z nimi w ciaglym zazebieniu, znamienny tym, ze na odcinku (a) luku krzywizny (5) zewnetrznej krzywki (1) wyznaczonym przez ramiona kata (pty o wierzcholku lezacym w srodku okregu stanowiacego krawedz zewnetrzna zewnetrznej krzywki (1) przyjmujacego wartosci 7 do 8 stopni od osi symetrii, krzywizna krzywki (1) jest wypukla.Claims 1. A rotary cam motor, in particular as a hydraulic motor consisting of an outer cam - stator having four hump-like curves towards the inside, and an inner cam - rotor having three hump-like curves directed outwards and satellites that remain in continuous mesh with them, characterized by the fact that on the segment (a) of the curvature arc (5) of the outer cam (1) defined by the angle arms (a plate with the vertex lying in the center of the circle constituting the outer edge of the outer cam (1) of the host values 7 to 8 degrees from the centerline, the curvature of the cam (1) is convex. 2. Silnik wedlug zastrz. 1, znamienny tym, ze dlugosc odcinka (a) luku krzywizny (5) zewnetrznej krzywki (1) stanowi 1/6 do 1/7 dlugosci krzywizny (5), to Jest krzywizny od punktu najdalej polozonego w stosunku do srodka krzywki (1).146 450 ? 2 3 oC O O a PL2. Engine according to claim The method of claim 1, characterized in that the length of the section (a) of the curvature arc (5) of the outer cam (1) is 1/6 to 1/7 of the length of the curvature (5), i.e. the curvature from the farthest point to the center of the cam (1) .146 450? 2 3 oC O O a PL
PL25154385A 1985-01-10 1985-01-10 Rotary cam-type piston engine in particular for use as hydraulic engine PL146450B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL25154385A PL146450B1 (en) 1985-01-10 1985-01-10 Rotary cam-type piston engine in particular for use as hydraulic engine
DE19853542913 DE3542913A1 (en) 1985-01-10 1985-12-04 Planetary cam engine, especially as hydraulic motor
SU853991834A SU1403993A3 (en) 1985-01-10 1985-12-23 Planetary-cam gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL25154385A PL146450B1 (en) 1985-01-10 1985-01-10 Rotary cam-type piston engine in particular for use as hydraulic engine

Publications (2)

Publication Number Publication Date
PL251543A1 PL251543A1 (en) 1986-07-29
PL146450B1 true PL146450B1 (en) 1989-02-28

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ID=20025053

Family Applications (1)

Application Number Title Priority Date Filing Date
PL25154385A PL146450B1 (en) 1985-01-10 1985-01-10 Rotary cam-type piston engine in particular for use as hydraulic engine

Country Status (3)

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DE (1) DE3542913A1 (en)
PL (1) PL146450B1 (en)
SU (1) SU1403993A3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001246341A1 (en) * 2000-03-06 2001-09-17 Quan Zhang A positive-displacement machine of gear type
SK285000B6 (en) * 2000-12-22 2006-04-06 Svetozár Hruškovič Method for energy conversion in a rotary piston engine or machine and a rotary piston engine or machine
CN101586523B (en) * 2009-06-30 2011-09-28 合肥航天液压机械有限公司 Noncircular planetary gear hydraulic motor
CN104265560B (en) * 2014-09-18 2016-09-21 武汉理工大学 Dual output internal rotor non-conical gear type motor
CN105020092A (en) * 2015-07-16 2015-11-04 合肥集源穗意液压技术股份有限公司 Special-shape gear emulsion motor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE288340C (en) *

Also Published As

Publication number Publication date
SU1403993A3 (en) 1988-06-15
DE3542913A1 (en) 1986-07-10
PL251543A1 (en) 1986-07-29

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