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
  • F01C3/00—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members
  • F01C3/02—Rotary-piston machines or engines with non-parallel axes of movement of co-operating members the axes being arranged at an angle of 90 degrees

Definitions

• the present invention relates to motors and pumps. More particularly, it relates to positive displacement rotary-type motors and pumps, specifically those rotary motors which are driven by pressurized fluid.
• the present invention is directed to a device employ ⁇ ing two rotors designed such that they rotate about intersecting axes and have coincident center points. These rotors are contained within intersecting chambers such that 'one rotor thereby provides a displacement function while the other provides a sealing function.
• the chambers and rotors cooperate to define two variable volume chambers which may be employed as either pumping chambers or fluid motor power chambers. In this way, a positive displacement " mechanism has been developed which employs balanced rotation.
• This efficient system lends itself to use as a source of motive power derived from the use of pressurized fluids, pressurized by external combus ⁇ tion or other means.
• the power rotor is positioned within the seal rotor, with both rotors rotatable about the same center point.
• the power rotor rotates in a plane perpendicular to that in which the seal rotor rotates.
• the power rotor comprises a rotor body which has a plur ⁇ ality of outwardly extending vanes, which vanes interdigi- tate during rotation with a similar number of vanes extending inwardly from the seal rotor, said seal rotor having a rim gear to which the inwardly extending vanes are attached.
• the vanes on each rotor are designed and constructed to mesh closely during such interdigita ⁇ tion.
• Figure 1 is a top view of the motor of the present invention enclosed within the housing block.
• Figure 2 is a side view of the invention, taken in cross-section along line 2-2 in Figure 1, showing the positional relationship of the power rotor and the seal rotor.
• Figure 3 is a bottom view of the invention, taken in cross-section along line 3-3 of Figure 2, showing the positional relationship of the power rotor and the seal rotor.
• Figure 4 is a side view of the invention, taken along line 4-4 in Figure 2, again showing the interrelationship of the power and seal rotors. Also depicted here are the inlet and exhaust means, as well as the power transmission means.
• Figure 5 is a perspective view of the power rotor in isolation.
• Figure 6 is a perspective view of the seal rotor in isolation.
• Figure 7 is a perspective view showing the relation ⁇ ship of the power rotor and the seal rotor, as well as the power transmission and timing means, all in isolation.
• Figure 8 is a side view of the invention, with a portion broken away to show the inlet and exhaust means in relation to the power and seal rotors.
• the positive displacement devise of the present invention is encased in a substantially solid, square housing block 1, which in the preferred embodiment has been formed in four pieces for ease of assemblage.
• the four pieces of the housing block are held together by conventional nut and bolt means 2.
• power rotor 3 is rotatably journaled within a first cylindrical chamber 4.
• Power rotor 3 is best seen in Figure 5.
• Power rotor 3 has rotor body 5 which is circular and solid.
• Power rotor vanes 6 extend outwardly from the rotor body 5.
• the vanes 6 are substantially triangular in shape and are attached to the rotor body 5 at the apex of that triangle.
• the leading and trailing edge of the vanes 6 are provided with a knife edge.
• spur gear 7 is also attached to the rotor body 5 .
• axle 8 Extending through the center and protruding either side of power rotor 3 and spur gear 7 is axle 8 used to rotatably journal power rotor 3 within first chamber 4 by conventional journal means 9, as best seen in Figure 3.
• Seal rotor 10 is disposed within second chamber 11, as best seen in Figures 3 and 4.
• Second chamber 11 is cylindrical except for its center portion 11(a), which contains the mounting means for the power rotor 3.
• Seal rotor 10 is freely rotatable within second chamber 11 upon thrust bearings 12. Both power rotor 3 and seal rotor 10 rotate about the same center point, but their planes of rotation are perpendicular as can best be seen in Figure 4.
• Seal rotor 10 consists of rim gear 13 having helical gear teeth 14 about its total periphery. Seal rotor vanes 15 are fixably attached to the interior of rim gear 13 and extend inwardly towards the center of seal rotor 10. The seal rotor vanes 15 occupy nearly the entire interior space of seal rotor 10, leaving only a central, circular void space 16 and two outer spaces 17. Central circular void space 16 is sufficiently large to allow the rotor body 5 to rotate therein. Outer spaces 17 are suffi ⁇ ciently large to allow power rotor vanes 6 to pass freely therethrough. The outer spaces 17 defined by seal rotor vanes 15 are broadly hyperbolic in shape as the leading and trailing edges of seal rotor vanes 15 are convexly arcuate. This is to allow snug meshing during interdigi ⁇ tation of power rotor vanes 6 with seal rotor vanes 15 as power rotor 3 and seal rotor 10 are rotated.
• Power rotor 3 is caused to rotate by introduction of fluid into first chamber 4.
• seal rotor 10 substantially divides chamber 4 into an upper half 24 and a lower half 25. Therefore, two sets of inlet -and exhaust means are required.
• Inlet tubes 18 and 19 extend from the exterior of housing block 1 to chamber 4. The first pair of inlet ports 18 inject fluid into the upper chamber 24 in close proximity to rotor 10 at charge ports 20. Exhaust ports 21, positioned near seal rotor 10, and exhaust tubes 22 provide the means by which the fluid is removed from upper chamber 24. Second inlet tubes 19, second inlet ports 26, second exhaust ports 23 and second exhaust tubes 27 provide the same function for lower chamber 25. Notice that second inlet ports 26 and second exhaust ports 23 are positioned near seal rotor 10 in the same rotational order as first inlet ports 20 and first exhaust ports 21. The need for this arrangement will become apparent when the operation of the motor is discussed infra.
• Timing flange 34 is fixably attached to drive shaft 30 by conventional means, such as a set screw.
• Timing flange 34 is attached to flywheel gear 35 by conventional bolt means 36 which extend through elongated holes 37 to engage flywheel gear 35.
• the elongated holes 37 allow the position of timing flange 34 to be adjusted relative to flywheel 35.
• Flywheel gear 35 engages transmission gear 38 which is connected by trans ⁇ mission shaft 39 to helical gear 40.
• Transmission shaft 39 is journaled and attached to block 1 by conventional means.
• Helical gear 40 engates rim gear 13 of seal rotor 10.
• seal rotor 10 may be adjusted, to insure proper interdigitation of power rotor vanes 6 with outer spaces 17, by adjusting the position of timing flange 34 relative to flywheel gear 35.
• fluid is injected into chamber 4 via inlet tubes 18 and 19. This causes power rotor 3 to rotate in a clockwise position, as shown in Figures 2 and 8.
• each vane 6 interdigitating with a seal vane 15, seal rotor vanes 15 bisect chamber 4 into upper half 24 and lower half 25.
• seal vanes 15 again bisect chamber 4 into the respective upper and lower portions 24 and 25, and the cycle is repeated.
• This interdigitation whereby power rotor vanes 6 are timed to pass through outer void spaces 17 formed between seal rotor vanes 15, is made to occur with substantial meshing of power rotor vanes 6 with seal rotor vanes 15 by properly adjusting the position of rotor vanes 6 to the position of seal vanes 15, and by designing and constructing the leading edge 42 of seal vanes 15 to be slightly arcuate to correspond to the position of the rotor vanes 6 as it passes through outer space 17.
• each seal vane 15 is arcuate to correspond to the position of power vanes 6 when the power rotor 3 is rotated in the reverse, counter ⁇ clockwise direction.
• the shape of the leading and trailing edges of successive seal vanes 15 causes outer spaces 17 to be broadly hyperbolic in shape. This shape allows for close meshing of power vanes 6 with seal vanes 15 thereby providing for more " efficient reduction of fluid backpressure.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Hydraulic Motors (AREA)
• Actuator (AREA)
• Applications Or Details Of Rotary Compressors (AREA)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (3)

Family

ID=22175318

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Citations (1)

Family Cites Families (5)

• 1983
  • 1983-06-30 DE DE8383902488T patent/DE3378541D1/de not_active Expired
  • 1983-06-30 AT AT83902488T patent/ATE38875T1/de active
  • 1983-06-30 EP EP83902488A patent/EP0148823B1/de not_active Expired
  • 1983-06-30 WO PCT/US1983/000993 patent/WO1985000405A1/en not_active Ceased
  • 1983-06-30 JP JP83502520A patent/JPS60501716A/ja active Pending

Patent Citations (1)

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