US1006035A - Rotary steam-engine. - Google Patents

Rotary steam-engine. Download PDF

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US1006035A
US1006035A US45597708A US1908455977A US1006035A US 1006035 A US1006035 A US 1006035A US 45597708 A US45597708 A US 45597708A US 1908455977 A US1908455977 A US 1908455977A US 1006035 A US1006035 A US 1006035A
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engine
piston
steam
rotary
cylinder
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US45597708A
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Augustus A West
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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
    • F01C1/30—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
    • F01C1/352—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 vanes being pivoted on the axis of the outer member

Definitions

  • My invention relates especially to that class of steam engines in which the piston rotates within the cylinder, and has for its object the provision ofv an engine wherein the greatest efficiency of the steam em ployed may be acquired.
  • Figure 1 is a perspective view of a rotary steam engine embodying my invention.
  • Fig. 2 is a vertical, aX- ial, section of the engine.
  • Fig. 3 is a vertical, section of a modification of the cylinder on a reduced scale wherein five pockets-are shown, and
  • Fig. 4 is a like view showing seven pockets.
  • Fig. 5 is a vertical, section of the engine at right angles to the section illustrated in Fig. 2.
  • Fig. 6 is a fragmentary perspective view of the rotary mechanism removed from the cylinder.
  • Fig. 7 is an enlarged perspective view of the piston.
  • Fig. 8 is a vertical, axial, sectional view of the engine with the piston and interior rotatable parts removed from the shaft.
  • Fig. 9 is a perspective view of the slide valve removed from the steam chest.
  • Fig. 10 is a vertical, cross-sectional view at line a-a of Fig. 9.
  • Fig. 11 is a like view at line 6b of Fig. 9, and
  • Fig. 12 is a like view at line 0-c.
  • Fig. 13 is a longitudinal scetional view of one of the operating connections of the slide valve above referred to.
  • Fig. 1 1 is an enlarged, axial, section of one of the connections to the camshifting mechanism below the engine shaft,
  • Fig. 15 is a like section of a connection above the engine shaft.
  • Fig. 16 is a side elevation of the governing mechanism.
  • Fig. 17 is a vertical, longitudinal, section of the slide valve removed from the steam chest.
  • Fig. 18 is a vertical, cross-sectional view of the steam chest at line (Z-d of Fig. 8, and
  • Fig. 19 is a vertical, longitudinal, sectional view of the steam chest at line e@ of Fig. 18.
  • 1 is the base of the engine. 2 is the cylinder formed therewith or secured thereto, as preferred.
  • the cylinder is provided with pockets 3.
  • Fig. 5 three pockets are shown; in Fig. 3, five pockets, and in Fig. 4, seven pockets, but it is obvious that any odd number of pockets may be employed without departing from the spirit of my invention.
  • a piston which is shown to be made in two spaced portions or slotted to receive the shaft 7, as shown in Figs. 5 and 6.
  • the length of the piston is sufficient to extend from the divisional point or terminal between two of the pockets 3 to the central or portion of maximum depth of the pocket opposite to such division, as particularly shown in Fig. 5 of the drawing.
  • bearing pieces preferably made of Babbitt metal, held in seats at each side of the slots 10 by springs 18.
  • cam wheels 20 and 21 Mounted on the shaft 7 at each side of the cylinder so as to move longitudinally upon the shaft, are cam wheels 20 and 21, the hub 22 of each of these wheels has a circumferential groove 23.
  • the ports 5 and 6 in the wall of the cylinder 2 are formed recesses 25 for the reception of cutofi slide 26 having a passage 27 therethrough.
  • the stem 28 of each slide passes through a stuffing box 29 and engages a hollow arm 30 provided with rotatable sleeves 31 and 32.
  • the construction of an arm 30 is particularly illustrated in Fig. 13.
  • the arm is filled with oil 33 and waste 34, the necessary amount of oil to properly lubricate the sleeves passing through perforations 35.
  • the sleeve 32 enters the groove in the periphery of a cam-wheel 20 or 21 and the sleeve 31 is movable in a guide yoke 44.
  • Pivoted at 36 is a.
  • lever 37 having thereon fingers 38 and 39 provided with rotatable sleeves which enter the groove 23 in a hub 22 of a wheel 20 or 21.
  • the upper extremity of each lever 37 is connected to a bell crank 40 pivoted on a rod 41, which rod bears at each end a toothed segment 42 wherewit-h the free arm of the crank 40 is arranged to adjustably engage, the rod 41 passages 52 and 54 extending directly there-.
  • Pipe 46 communicates with a passage 58 in the steam chest.
  • Passage 59 in said chest communicates with pipes 60, which in turn communicate with the several valves located in the recesses 25 on the left side of the engine, and passage 61 communicating with steam pipe 47 which in turn communicates with passage 62 to the pipes 63 on the right side of the engine.
  • the stem 64 of the slide 50 is provided with a pin 65 engaging a slot 66 in an arm 67 pivoted at 68. This arm is provided with a dog 69 arranged to take in the notches in a fixed segment 7 O.
  • 71 is a pin in the rod 41 which also takes in the slot 66.
  • the cut-ofi to the right opens each exhaust valve as the supply begins to enter at the opposite side of the piston, but if desired by moving the arm 40 at the right of the engine, upward, throwing the cam-wheel 21 outward on the shaft 7, the groove therein is brought to a central position with relation to the arms 30 on that side of the engine, moving the exhaust valves slightly, and as the openings 27 are elongated, this slight movement does not entirely close the outlet ports which communicate with the pipes 63 and pipe 47.
  • a rotary fluid engine the combina tion with a cylinder having a plurality though uneven number of pockets, of a rotary piston operable within said cylinder, piston blades in said rotary piston having a plurality of springs with outwardly turned arms arranged and carried by the end portions of the piston and side packing rollers journaled on the arms, said rollers having their outer ends cone shape and adjacent to and supporting an additional roller both ends of which are cone shaped as specified.
  • a rotary fluid pressure engine having a cylinder, a cylindrical shell rotatably mounted within said cylinder, a piston slidable through said shell, bearing pieces between said piston blades and said shell, and

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

A. A. WEST.
ROTARY. STEAM ENGINE. 7 APPLICATION 21mm 001'. 3, 190a.
,1,0 35 Patented 0ct'.1 7,1911.
4 SHEETS-SHEET 1.
WITH/E8858 INVENTOH f I ugwiusAWst, AL ULWME ATTORNEY,
A. A. WEST.
ROTARY STEAM ENGINE.
APPLIOATION FILED OUT. 3, 1908.
4 SHBETBSHEET 2.
30 3/-" 3*" '6 8 1A.) 32 g 2 a 20* 1 1 ag; 5 l2;
l8 .36 55 5. f6? 4/ I l 3 ,1 IN [/5 N TOR WITNESSES; I
A7 TORNEV.
A. A. WEST.
ROTARY STEAM ENGINE.
APPLICATION run) 001'. s, 1908.
1,006,035. Patented 0011121911.
4 SHEETS-SHEET 3.
. 6g 5 v I8 f: .II "I ATTOR/IIEX OOLUHBIA PLANOGRAPH (20., WASHINGTON. D. C.
set
A. A. WEST.
ROTARY STEAM ENGINE.
APPLICATION FILED 00w. 3, a.
Patented Oct. 17, 1911.
4 SHEETB-BHIIET 4.
Mil/EN 'OR A 7 TOR/V5 AUGUSTUS A. WEST, OF BROOKLYN, NEW YORK.
ROTARY STEAM-ENGINE.
To all whom it may concern:
Be it known that I, AUeUsrus A. WEST, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Rotary Steam- Engines, of which the following is a specification, reference being had therein to the accompanying drawing.
My invention relates especially to that class of steam engines in which the piston rotates within the cylinder, and has for its object the provision ofv an engine wherein the greatest efficiency of the steam em ployed may be acquired.
To attain the desired end, my invention consists in certain novel and useful combinations or arrangements of parts, and peculiarities of construction and operation, all of which will be hereinafter first fully described, and then pointed out in. the claims.
In the drawings, Figure 1 is a perspective view of a rotary steam engine embodying my invention. Fig. 2 is a vertical, aX- ial, section of the engine. Fig. 3 is a vertical, section of a modification of the cylinder on a reduced scale wherein five pockets-are shown, and Fig. 4 is a like view showing seven pockets. Fig. 5 is a vertical, section of the engine at right angles to the section illustrated in Fig. 2. Fig. 6 is a fragmentary perspective view of the rotary mechanism removed from the cylinder. Fig. 7 is an enlarged perspective view of the piston. Fig. 8 is a vertical, axial, sectional view of the engine with the piston and interior rotatable parts removed from the shaft. The major portion of this view is taken on a central vertical line, but that part of the figure at the upper right hand corner is taken at one side of the center, the side nearer the eye, to better disclose the valve structure. Fig. 9 is a perspective view of the slide valve removed from the steam chest. Fig. 10 is a vertical, cross-sectional view at line a-a of Fig. 9. Fig. 11 is a like view at line 6b of Fig. 9, and Fig. 12 is a like view at line 0-c. Fig. 13 is a longitudinal scetional view of one of the operating connections of the slide valve above referred to. Fig. 1 1 is an enlarged, axial, section of one of the connections to the camshifting mechanism below the engine shaft,
Specification of Letters Patent.
Application filed October 3, 1908.
Patented Oct. 1'7, 1911.
Serial No. 455,977.
and Fig. 15 is a like section of a connection above the engine shaft. Fig. 16 is a side elevation of the governing mechanism. Fig. 17 is a vertical, longitudinal, section of the slide valve removed from the steam chest. Fig. 18 is a vertical, cross-sectional view of the steam chest at line (Z-d of Fig. 8, and Fig. 19 is a vertical, longitudinal, sectional view of the steam chest at line e@ of Fig. 18.
Similar numerals of reference, wherever they occur, indicate corresponding parts in all the figures.
1 is the base of the engine. 2 is the cylinder formed therewith or secured thereto, as preferred. The cylinder is provided with pockets 3. In Fig. 5 three pockets are shown; in Fig. 3, five pockets, and in Fig. 4, seven pockets, but it is obvious that any odd number of pockets may be employed without departing from the spirit of my invention.
4: is a packing and bearing roller located at the terminals of each pocket 3.
5 and 6 are steam ports located in the body of the cylinder- 7 is the engine shaft journaled in the walls of cylinder 2.
8 is an annular shell or rotor which fits into the cylinder, and comes in contact with the several packing rollers 4. At 10 in the periphery of the shell 8 are slots located diametrically opposite to each other.
11 is a piston which is shown to be made in two spaced portions or slotted to receive the shaft 7, as shown in Figs. 5 and 6. The length of the piston is suficient to extend from the divisional point or terminal between two of the pockets 3 to the central or portion of maximum depth of the pocket opposite to such division, as particularly shown in Fig. 5 of the drawing.
12 are bearing pieces, preferably made of Babbitt metal, held in seats at each side of the slots 10 by springs 18.
14 are packing rings made of suitable material, held in place by bolts 15 and ar ranged to rest against the outer faces of the piston 11 and supply oil thereto.
16 are packing rollers loosely mounted on spring-arms 17 at each side of the piston 11, and 18 are similar rollers at the extremities of the piston.
19 is a packing piece placed within the body of the piston 11 so as to touch the rollers 16 and 18 and supply oil in lubricating the same.
24 are springs for expanding the packing and taking up the wear.
Mounted on the shaft 7 at each side of the cylinder so as to move longitudinally upon the shaft, are cam wheels 20 and 21, the hub 22 of each of these wheels has a circumferential groove 23. Opposite the ports 5 and 6 in the wall of the cylinder 2 are formed recesses 25 for the reception of cutofi slide 26 having a passage 27 therethrough. The stem 28 of each slide passes through a stuffing box 29 and engages a hollow arm 30 provided with rotatable sleeves 31 and 32. The construction of an arm 30 is particularly illustrated in Fig. 13. The arm is filled with oil 33 and waste 34, the necessary amount of oil to properly lubricate the sleeves passing through perforations 35. The sleeve 32 enters the groove in the periphery of a cam- wheel 20 or 21 and the sleeve 31 is movable in a guide yoke 44.
Pivoted at 36 is a. lever 37 having thereon fingers 38 and 39 provided with rotatable sleeves which enter the groove 23 in a hub 22 of a wheel 20 or 21. The upper extremity of each lever 37 is connected to a bell crank 40 pivoted on a rod 41, which rod bears at each end a toothed segment 42 wherewit-h the free arm of the crank 40 is arranged to adjustably engage, the rod 41 passages 52 and 54 extending directly there-.
through, the passage 51 connecting with a horizontal conduit 55 and vertical way 56, and the passage 53, with a. corresponding horizontal conduit in the opposite side of the slide 50, and .with the vertical way 57. Pipe 46 communicates with a passage 58 in the steam chest. Passage 59 in said chest communicates with pipes 60, which in turn communicate with the several valves located in the recesses 25 on the left side of the engine, and passage 61 communicating with steam pipe 47 which in turn communicates with passage 62 to the pipes 63 on the right side of the engine. The stem 64 of the slide 50 is provided with a pin 65 engaging a slot 66 in an arm 67 pivoted at 68. This arm is provided with a dog 69 arranged to take in the notches in a fixed segment 7 O. 71 is a pin in the rod 41 which also takes in the slot 66.
The parts of the engine being in the positions shown in the drawing, and steam admitted through pipe 46, it is carried by the pipes 60 to the ports on the left side of the engine, being first admitted as indicated by the arrow in Fig. 5. As soon as the part of the piston at the top of said figure passes into the pocket at the left thereof, steam is admitted at the rear of the piston. As the piston is free to move longitudinally each end follows the contour of the pockets always coming closely in contact with the bottom of the pocket while working. As illustrated in the drawing, the cut-ofi to the right opens each exhaust valve as the supply begins to enter at the opposite side of the piston, but if desired by moving the arm 40 at the right of the engine, upward, throwing the cam-wheel 21 outward on the shaft 7, the groove therein is brought to a central position with relation to the arms 30 on that side of the engine, moving the exhaust valves slightly, and as the openings 27 are elongated, this slight movement does not entirely close the outlet ports which communicate with the pipes 63 and pipe 47. The parts being in the position shown, by throwing the lever 67 to the right, the camwheels are shifted by the movement of the rod 41 and the valve plate 50 then directs the live steam to the ports on the right of the engine, and the exhaust escapes through the ports on the left, reversing the direction of rotation of the shaft 7 and the parts carried thereby.
Having now fully described my invention, what I claim as new therein, and desire to secure by Letters Patent, is:
1. In a rotary fluid engine, the combina tion with a cylinder having a plurality though uneven number of pockets, of a rotary piston operable within said cylinder, piston blades in said rotary piston having a plurality of springs with outwardly turned arms arranged and carried by the end portions of the piston and side packing rollers journaled on the arms, said rollers having their outer ends cone shape and adjacent to and supporting an additional roller both ends of which are cone shaped as specified.
2. In a rotary fluid pressure engine, the combination of a piston, of springs having outwardly-turned arms arranged and carried by the end portions of the piston, and side packing rollers journaled on the arms.
3. In a rotary fluid pressure engine, the combination of a rotary piston, springs having outwardly turned arms arranged and carried by the end portions of the piston blades in said rotary piston, side packing rollers journaled on the arms and a roller adjacent to the ends of said packing rollers and supported thereby.
4. In a rotary fluid pressure engine having a cylinder, a cylindrical shell rotatably mounted within said cylinder, a piston slidable through said shell, bearing pieces between said piston blades and said shell, and
springs Within said shell operating against thereof pressed against the opposite faces said bearing pieces urging said bearing of the piston. 10 pieces into close relation with said piston In testimony whereof I hereto aflix my and said shell as specified. signature in presence of two witnesses.
, 5. In a rotary fluid pressure engine, a cy- AUGUSTUS A. WEST.
lindrical shell, a piston slidable through Witnesses: the shell, and resilient tubular packing fixed LOUIS F. BRAU'N, to and within the shell, with the side faces A. M. PIERCE.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455303A (en) * 1945-03-05 1948-11-30 Earl L Grate Rotary pump
US4432711A (en) * 1980-11-07 1984-02-21 Nippon Soken, Inc. Vane pump with cylinder profile defined by cycloid curves
US11021970B2 (en) 2019-02-20 2021-06-01 General Electric Company Turbomachine with alternatingly spaced rotor blades

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455303A (en) * 1945-03-05 1948-11-30 Earl L Grate Rotary pump
US4432711A (en) * 1980-11-07 1984-02-21 Nippon Soken, Inc. Vane pump with cylinder profile defined by cycloid curves
US11021970B2 (en) 2019-02-20 2021-06-01 General Electric Company Turbomachine with alternatingly spaced rotor blades

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