US3778199A - Rotary engine - Google Patents

Rotary engine Download PDF

Info

Publication number
US3778199A
US3778199A US00237815A US3778199DA US3778199A US 3778199 A US3778199 A US 3778199A US 00237815 A US00237815 A US 00237815A US 3778199D A US3778199D A US 3778199DA US 3778199 A US3778199 A US 3778199A
Authority
US
United States
Prior art keywords
fluid
rotor
rotary engine
cavities
spaced
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 - Lifetime
Application number
US00237815A
Other languages
English (en)
Inventor
G Meacham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3778199A publication Critical patent/US3778199A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/18—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F01C1/3446—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 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
    • 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
    • F01C11/00—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
    • F01C11/006—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type of dissimilar working principle

Definitions

  • ABSTRACT Fluid-pressure operated rotary engine has annular rotor mounted to rotate in an annular chamber in fixed housing, rotor having plurality of peripherally spaced cavities defining cam surfaces between intermediate bearing lands for rotational engagement on cylindrical hub having peripherally spaced radial slots. Fluid-pressure medium efficiently and effectively fed through rotor to said radial slots urges slide plates radially outwardly for cam engagement with cam surfaces and lands with rotation of said rotor induced by predetermined proportion of fluid-pressure medium being by-passed through slide plates to the cam cavities. Outlet passage means in rotor controls removal expended fluid-pressure medium from cam cavities.
  • the fluid-pressure operated rotary engine of the present invention utilizes a cylindrical hub affixed with respect to a fixed housing, and defining an annular chamber within said housing and an annular rotor mounted in said housing to rotate in the annular chamber.
  • a plurality of peripherally spaced cavities in the rotor define cam surfaces between intermediate bearing lands which are in rotational engagement with said cylindrical hub, which is provided with peripherally spaced radial slots of predetermined radial depth opening toward said chamber.
  • Slide plates radially slidably received in said radial slots have end'portions adapted to ride over said lands and the cam surfaces between the lands, upon forward rotation of said rotor in said annular chamber, and conduit means connected to the hub or shaft thereon provides a continuous supply of fluid-pressure medium: centrally through said rotor to said radialslots, for urging said slide plates radially outwardly toward fluid sealing engagement with said cam surfacesand said lands with rotation of said rotor.
  • the slide plates also have passage means for by-passing a predetermined proportion or fluid-pressure mediumto leading sides of the slide plates whereby the by-passed pressure medium builds sufficient pressure within corresponding cavity portions to rotate said rotor in forward direction.
  • Outlet passage means is provided in said rotor for conducting the expended fluid-pressure medium from said cam cavities at the trailing sides of said slide-plates.
  • the arrangement is such that there will always be at least one slide plate moving in a cam cavity to accomplish continuousrotation of the rotor in forward direction.
  • the improved structure of the invention makes it possible to provide fluid-sealing means to prevent leakage between the cam cavities for efficient operation of the motor. Improved means are also provided for attaining maximum efficiency in the operation of the engine, by controlling the manner in which spent fluid pressure medium is conducted from the cam chambers.
  • FIG. 1 is an end elevation, partly broken away and in section, illustrating one embodiment'of the improved pressure-fluid actuated rotary engine, in which an annular rotor has been rotated to a position of rotative operation with respect to a hub affixed to a fixed housing, by application of fluid pressure against one of a plurality of radial slide plates.
  • FIG. 2 is an enlarged framentary cross-section of a pressure controlled sealing means to prevent passage of pressure fluidbetween adjacent cam chambers in the annular rotor.
  • FIG. 3 is a vertical'cross-sectionthrough the rotary engine, substantially as viewed on the line 33 of FIG.
  • FIG. 4 is a view corresponding to FIG. 1, illustrating the rotary engine'with the rotor in anadvanced position of mechanical advantage to gain increased power from ignated by the numeral 16.
  • a central power shaft 15 may be affixed on the rotor 14, to be rotatable therewith in suitable bearing means 22, 22 on an integral extension 23 on the fixed drum housing 11, whereby the rotor-l4 is freely rotatable within the closed annular chamber 13 (with a normal sliding fit).
  • the fixed hub V presents a smooth cylindrical outer surface 18 for rotation within cylindrical inner wall surfaces of the rotor 14, to define a plurality of closed, :fluid-sealedchamber 19, 19 encompassed by axially spaced, parallel side' walls 20, 20 of the respective chambers and said smooth, cylindrical, bearing surface 18 of the fixed hub 12 (FIGS. 1 and 4).
  • Radially slidably mounted in fluid-sealing relationship in peripherally spaced radial recesses 24, 24, pro- I vided in said fixed hub 12, may be a plurality (two being shown) of slide valve plates 25, 25. Inner ends of the recesses 24 communicate with a supply line 26,
  • each valve plate 25 is provided with passage means or passages 29, 29 of total minimum flow area less than the flow areas of the respective radial slide recesses 24.
  • the fluid medium entering said slide recesses from the radial passages 28 provides adequate pressure to urge the valve plates radially outwardly toward fluid sealing engagement ofthe outer edge portions of the respective valve plates with the inwardly presented complemental rotor surfaces, particularly including the cam surfaces 19a, 19b, and 19c, and intermediate bearing lands 21, 21, as best shown in FIG. 1.
  • Passage means 29, 29 or substantial flow area is also provided radially through each valve plate 25, calculated to permit sufficient pressurized fluid medium to enter the respective cam chambers 19, at a trailing side of at least one slide-valve plate exposed within a chamber, to build up pressure within the respective cam chainber, thereby to rotate the rotor 14 in clockwise direction, as indicated by feathered arrows in FIGS. 1 and 4.
  • each cam chamber 19 may be relatively wide at the trailing end thereof and tapered sharply toward the leading end of the same, to provide for efficient discharge of the aforesaid residual fluid through an exhaust passage 30 in the rotor 14, the annular passage 34 and connecting outlet passage 35 to the exterior or otherwise. It will be readily apparent, by reference to the drawings, that the structure described lends itself to provision of appropriate seals between the moving parts in known manners, to prevent or minimize fluid leakage and thereby increase the efficiency of the motor.
  • annular grate 31 including a plurality of closely spaced V- Shaped vanes 32 may be affixed in an annular space 33 in the housing 11, between the rotor 14 and the respective annular discharge passage 34.
  • the vanes 32 are arranged as best shown in FIGS. 1 and 4 to direct the spent gasses in given peripheral direction toward the discharge outlet 35.
  • Means may be provided to improve the efficiency of the motor 10, by preventing passage of the fluid-pressure medium between the rotor 14 and the hub 12.
  • V-shaped annular sealing rings 37, 37 of resilient elastic material, such as rubber, may be mounted in the rotor 14, to be spring pressed against the flat opposite sides of the hub 12, at or near the cylindrical bearing surface of the hub, the rotor side-walls 20, 20 being made in sections to facilitate assembly with such sealing rings located as described.
  • straight T-shaped sealing bars 38 may be mounted in complementally shaped recesses 39 in the rotor at each bearing land 21, intermediate the chambers 19.
  • Passage means 40 connects each chamber with the leading end of a next adjacent cam chamber 19, so that pressure medium from the respective cam chamber applies pressure against the cross-bar piece of the sealing bar to hold the inner stem end of the same in sealing engagement with the smooth cylindrical surface portions 18 of the rotor.
  • the slide-valve plates may be provided with suitable, resilient, fluid-sealing means to prevent unwanted passage of fluid medium from the slide-valve reccesses 24 to the trailing sides of the plates 25, which would otherwise reduce the efficiency of the motor.
  • each inner plate 42 may be in the form of a central disc part 44 and an outer annular part 45.
  • edge portions of each said plate part, of plate 42 may be complementally shaped to retain a V- shaped annular seal 46, of suitable resilient material compressed by a coil spring 47, thereby to maintain a pointed edge of the seal in fluid-sealing engagement with a peripheral surface portion of a corresponding one of the axially spaced ends'of the hub 12.
  • seals 46 in conjunction with the T-shaped seals 37 at the lands 21, are adapted to prevent loss of fluid-pressure medium from the cam recesses 19, during power movement of the rotor induced by pressure against the leading sides of the respective slide-valve plates 25.
  • the efficiency of the rotary motor is greatly enhanced by the aforementioned sealing devices which prevent leakage of fluid medium from the respective cam chambers, and by the efficient means for controlled conduction of spent fluid medium from the cam chamber 39, to the discharge passage 34 through the vanes 32 of the annular grid 31.
  • a fluid-pressure operated rotary engine comprising: a relatively fixed hollow housing; a hub nonrotatably affixed relative to said housing, and having an outer cylindrical surface defining an annular chamber within said housing; an annular rotor mounted in said housing for relative rotation in said annular chamber, and having therein a plurality of peripherally spaced, camming cavities defining cam surfaces between intermediate bearing lands in rotational engagement with said cylindrical surface; said hub having therein peripherally spaced radial slots'of predetermined radial depth from said cylindrical surface and opening toward said chamber; slide plates radially slidably received in said radial slots, and having end portionsadapted to ride over said lands and said cam surfaces between the lands upon forward rotation of said rotor in said annular chamber; conduit means for providing a continuous supply of fluid-pressure medium through said relatively fixed hub to said radial slots for urging said slide plates radially outwardly toward engagement with said cam surfaces and said lands with rotation of said rotor; said slide plates having passage means for by-passing
  • a rotary engine as in claim 1 including axially extending sealing elements mounted in said lands to rotate therewith, and including radially inwardly presented axial extents of the elements in fluid-sealing engagement with the cylindrical surface of said hub.
  • a rotary engine as in claim 2 including means for supplying pressurized fluid medium against said sealing elements for maintaining the same in said fluid sealing engagement with said cylindrical surface.
  • said means for supplying fluid medium including by-pass means from the leading ends of said chambers to said sealing elements.
  • a rotary engine as in claim 4 said housing having therein exhaust outlet means communicating with said outlet passage means in the rotor, for discharging said expended fluid-pressure medium from the housing.
  • a rotary engine as in claim 5 including provision of an annular grate provided with spaced means for directionally controlled conduction of spent fluid medium from said camming cavities.
  • vanes are V-shaped.
  • a rotary engine as in claim 1 including provision of an annular grate provided with spaced means for directionally controlled conduction of spent fluid medium from said camming cavities.
  • a rotary engine as in claim 1 including provision of an annular grate provided with spaced means for directionally controlled conduction of spent fluid medium from said camming cavities.
  • Said spaced means including a plurality of peripherally spaced, fluiddeflecting vanes.
  • a rotary engine as in claim ll including provision of an annular grate provided with spaced means for directionally controlled conduction of spent fluid medium from said camming cavities, said spaced means including a plurality of peripherally spaced, fluiddeflecting vanes wherein said vanes are V-shaped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)
  • Rotary Pumps (AREA)
US00237815A 1972-03-24 1972-03-24 Rotary engine Expired - Lifetime US3778199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23781572A 1972-03-24 1972-03-24

Publications (1)

Publication Number Publication Date
US3778199A true US3778199A (en) 1973-12-11

Family

ID=22895314

Family Applications (1)

Application Number Title Priority Date Filing Date
US00237815A Expired - Lifetime US3778199A (en) 1972-03-24 1972-03-24 Rotary engine

Country Status (4)

Country Link
US (1) US3778199A (enExample)
JP (1) JPS4992405A (enExample)
CA (1) CA984802A (enExample)
GB (1) GB1385614A (enExample)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891359A (en) * 1972-03-24 1975-06-24 George W Meacham Rotary engine
US4099896A (en) * 1976-02-26 1978-07-11 Stal Refrigeration Ab Rotary compressor
CN1040570C (zh) * 1992-08-20 1998-11-04 李清山 轴承式旋转发动机
US7713042B1 (en) * 2009-11-07 2010-05-11 John Rodgers Rotary engine
CN101871366A (zh) * 2010-07-02 2010-10-27 西安交通大学 一种滑片槽底引压的滑片式膨胀机
US20120087820A1 (en) * 2010-09-15 2012-04-12 Patterson Albert W Rotary device
WO2012079144A1 (en) * 2010-12-17 2012-06-21 Windtrans Systems Ltd. Rotary device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US812588A (en) * 1905-09-29 1906-02-13 Robert Cormack Mclean Rotary engine.
US1914091A (en) * 1930-09-26 1933-06-13 Airetool Mfg Company Fluid motor
US2099193A (en) * 1935-11-20 1937-11-16 Brightwell Curtis Francis Motor or pump
US3304879A (en) * 1963-05-22 1967-02-21 Elliott F Hanson Fluid operated device
US3639092A (en) * 1968-12-31 1972-02-01 Gaston Sauvaget Apparatus for converting hydraulic or pneumatic energy into kinetic energy or vice versa, such as a rotary multichamber vane-type motor or pumps
US3682143A (en) * 1970-06-03 1972-08-08 Leas Brothers Dev Corp Cylindrical rotor internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US812588A (en) * 1905-09-29 1906-02-13 Robert Cormack Mclean Rotary engine.
US1914091A (en) * 1930-09-26 1933-06-13 Airetool Mfg Company Fluid motor
US2099193A (en) * 1935-11-20 1937-11-16 Brightwell Curtis Francis Motor or pump
US3304879A (en) * 1963-05-22 1967-02-21 Elliott F Hanson Fluid operated device
US3639092A (en) * 1968-12-31 1972-02-01 Gaston Sauvaget Apparatus for converting hydraulic or pneumatic energy into kinetic energy or vice versa, such as a rotary multichamber vane-type motor or pumps
US3682143A (en) * 1970-06-03 1972-08-08 Leas Brothers Dev Corp Cylindrical rotor internal combustion engine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891359A (en) * 1972-03-24 1975-06-24 George W Meacham Rotary engine
US4099896A (en) * 1976-02-26 1978-07-11 Stal Refrigeration Ab Rotary compressor
CN1040570C (zh) * 1992-08-20 1998-11-04 李清山 轴承式旋转发动机
US7713042B1 (en) * 2009-11-07 2010-05-11 John Rodgers Rotary engine
CN101871366A (zh) * 2010-07-02 2010-10-27 西安交通大学 一种滑片槽底引压的滑片式膨胀机
US20120087820A1 (en) * 2010-09-15 2012-04-12 Patterson Albert W Rotary device
WO2012079144A1 (en) * 2010-12-17 2012-06-21 Windtrans Systems Ltd. Rotary device

Also Published As

Publication number Publication date
CA984802A (en) 1976-03-02
JPS4992405A (enExample) 1974-09-03
GB1385614A (en) 1975-02-26

Similar Documents

Publication Publication Date Title
US4197061A (en) Rotary pneumatic vane motor with rotatable tubing contacted by vanes
EP1243794B1 (en) Vane hydraulic motor
US3516769A (en) Rotary vane hydraulic motor
US3778199A (en) Rotary engine
US3627454A (en) Hydraulic device
US3932076A (en) Hydraulic wheel
US2312961A (en) Fluid pump or motor
US3120154A (en) Hydraulic motor
US4086764A (en) Hydroturbine engine device
US2270222A (en) Fluid brake
US2776086A (en) Fluid compressor or pump
US2152564A (en) Rotary fluid motor
US3891359A (en) Rotary engine
US2536938A (en) Rotary fluid motor
US3169487A (en) High pressure vane pump
US3869228A (en) Axial pressure balancing means for a hydraulic device
US2646753A (en) Rotary fluid motor or pump having axially sliding vanes
US1594132A (en) Rotary machine
US625182A (en) mason
US3455247A (en) Retractable vane hydraulic motor-pump device
US3582246A (en) Rotary fluid displacement device
US824113A (en) Turbine-engine.
US3453936A (en) Rotor vane
US1038477A (en) Rotary pump.
US844758A (en) Rotary-engine.