US640353A - Rotary engine. - Google Patents

Rotary engine. Download PDF

Info

Publication number
US640353A
US640353A US71061799A US1899710617A US640353A US 640353 A US640353 A US 640353A US 71061799 A US71061799 A US 71061799A US 1899710617 A US1899710617 A US 1899710617A US 640353 A US640353 A US 640353A
Authority
US
United States
Prior art keywords
piston
cylinder
steam
valves
passages
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
US71061799A
Inventor
Livy H Allen
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
Priority to US71061799A priority Critical patent/US640353A/en
Application granted granted Critical
Publication of US640353A publication Critical patent/US640353A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 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
    • 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
    • F01C1/3441—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 one line or continuous surface substantially parallel to the axis of rotation

Definitions

  • My invention relates to rotary steaurengines, and more particularly to that type embracing a stationary cylinder or casing, a rotary piston therein and arranged eccentrically of the cylinder, valves which move inward and outward of the piston, so as to present a surface upon which the steam may act, and movable packing-strips carried by the piston, the object in this connection being to produce an engine of this character wherein the customary springs for adj Listing the valves and packing-strips are dispensed with and centrifugal force utilized as a substitute for said sp1-in
  • a further object of the invention is to produce a rotary steam-engine which is of simple, compact, strong, durable, and inexpensive construction.
  • 1 designates the baseplate, and 2 a pair of vertical bearing-standards at opposite ends of the base-plate.
  • cylinder 3 designates a cylinder formed integral, by preference, with the base-plate, and a the cylinder-heads bolted to the cylinder, as shown, or otherwise secured in position'.
  • Said cylinder-heads are provided with outwardly-projecting nanges 5, having in their upper sides the inlet-ports 6, said ports communicating at their inner ends With curved passages 7, formed in the inner sides of said heads and extending eccentrically thereof, and at a suitable point the cylinder 3 is formed with an outlet-port 8.
  • the piston is also provided with a large number of peripheral grooves 17, which extend from side to side and are of 'l' shape in cross-section, and fitting snugly in said grooves, but adapted to have movement therein radially of the piston, are packing-strips 18 of corresponding form in cross-section to the end that the arms of said T-shaped packing-strips shall limit their outward movement, and thus prevent their total disconnection from the piston.
  • valves 2l of segmental form, fit snugly in the recesses 12 and are balanced to the steam-pressure and clamped iirmly on the stems of said T-shaped bolts 19 by means of the nuts 22, and the sides of said valves adjacent to the bearing-caps are concaved, as at 23, so as to lit with comparative snugness against said caps and yet leave room for the passage of steam between them. Supposing the parts to be in the position shown in Fig. 1 and the piston rotating as indicated by the arrow in said figure, itWill be apparent that as the passages 15 have just passed out of register with the inlet-ports 7 the piston is rotating under the expansive action of the steam previously introduced, the exhaust-steam in advance of the lower valve 22 being exhausted through port 8.
  • valve companion to the passage 16 passes the vertical center of the machinethat'is, the moment its lip 24 passes the point where the piston and inner wall of the cylinder are nearest-and therefore begins to move outward under the power of the steam admitted through passages 16 the valve companion to passages 15 passes the vertical center ofthe engine below the shaft or the point where the piston and inner Wall of the cylinder are farthest from each other and by reason ofthe eccentric relation between its axisand' that ofthe cylinder commences to swing inward under the pressure of the cylinder, and duringithisitime any steam which may have got into the recess 12 behind said piston is forced ont between the valve and the bearingcaps 20.
  • valves are of such constructionthat their outer halves exceed the weight of the inner by just about the weight of the lips 24, whichflipswhen the valves are forced clearinto the recesses 12 occupy the offsetting notches 14. and are in position to receive the fullfbenefit and effect of the steam-pressure as .it isadmittedthrough passages 15 or 16.
  • the piston revolves a perfect steam-tight joint between the latter and that portion of the cylinder-wallnearest the axis vof the piston is maintained by one of the valves or by the strips 18, the latter being so numerous and arranged so closely together that before one is relieved from frictional engagement with said wall the second one engages it, and thereby prevents any back-leakage of steam, as will be readily understood.
  • a rotary engine comprising a stationary cylinder having inlet and outlet ports, a shaft jonrnaled in and eccentrically of the cylinder, a piston mounted on the shaft and provided with peripheral packing-strips, cavities 12, andzwith ports in its side faces, T-bolts'pivoted to the piston, valves occupying said cavities 12 and secured to the stems of said T- bolts, said valves having lips to overlap the discharge ends-of the piston-ports when the valves are repressed'or forced completely in said cavities, substantially as described.
  • a rotary engine comprisingastationary cylinder having inlet and outlet ports, a shaft journaled in and eccentrically ofthe cylinder, a piston mounted on the shaft and provided with peripheral packing-strips, cavities 12 having offsetting cavities 13, and with ports in its side faces, T-bolts having their heads of cylindrical formation and journaled in cavities 13, and bearing-caps 20 secured to the piston and holding said bolts pivotally in position, and valves clamped upon the stem of said bolts and concaved as at 23, and having lips to overlap the discharge ends of the piston-ports when the valves are repressed, substantially as described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

r llrrrcn..
LlVY ll. ALLEN, OF VALLEY FALLS, KANSAS.
ROTARY ENGlN E.
SPECIFGA'EIN forming part of Letters Patent No. 640,353, dated January 2, 1 900. Application filed March 27,1899. Serial No. 710,617. (No model.)
To @ZZ when@ it may concern:
13e it known that l, LIVY H. ALLEN, of Valley Falls, in the county of Jefferson and State of Kansas, have invented certain new and useful improvements in Rotary Engines, of which the following is a specification.
My invention relates to rotary steaurengines, and more particularly to that type embracing a stationary cylinder or casing, a rotary piston therein and arranged eccentrically of the cylinder, valves which move inward and outward of the piston, so as to present a surface upon which the steam may act, and movable packing-strips carried by the piston, the object in this connection being to produce an engine of this character wherein the customary springs for adj Listing the valves and packing-strips are dispensed with and centrifugal force utilized as a substitute for said sp1-in A further object of the invention is to produce a rotary steam-engine which is of simple, compact, strong, durable, and inexpensive construction.
"W ith these objects in view the invention consists in certain novel and peculiar features of construction and combinations of parts, as Will be hereinafter described and claimed and in order that the invention may be fully understood reference is to be had to the accompanying' drawings, in Which-- Figure 1 is a vertical section taken on the line l l of Fig. 2. Fig. 2 is a vertical section taken on the line ll ll of Fig. 1. Fig. 3 is a face view of part of the piston, showing the relation between the steam-passages thereof and the inlet-port of the engine. Fig. 1L is a section taken on the line 1V 1V of Fig. 3. Fig. is a detailed cross-section of one of the piston-valves.
in the said drawings, 1 designates the baseplate, and 2 a pair of vertical bearing-standards at opposite ends of the base-plate.
3 designates a cylinder formed integral, by preference, with the base-plate, and a the cylinder-heads bolted to the cylinder, as shown, or otherwise secured in position'. Said cylinder-heads are provided with outwardly-projecting nanges 5, having in their upper sides the inlet-ports 6, said ports communicating at their inner ends With curved passages 7, formed in the inner sides of said heads and extending eccentrically thereof, and at a suitable point the cylinder 3 is formed with an outlet-port 8.
9 designates packing-glands mounted in the flanges 5, such construction constitu ting stuffing-boxes, and 10 the engine-shaft, which is journaled in said standards and extends through said stuffing-boxes.
11 designates a rotary piston fitting snugly between the cylinder-heads and secured rigidly upon the shaft, and said piston is provided at diametrically opposite points with the deep notches or recesses 12, having semicircular offsetting cavities 13 at one side and shallow offsetting notches 14 at the opposite side, and communicating at their outer ends With the notches 14 are the segmental steampassages 15 and 16, such passages being formed in both sides of the piston. The piston is also provided With a large number of peripheral grooves 17, which extend from side to side and are of 'l' shape in cross-section, and fitting snugly in said grooves, but adapted to have movement therein radially of the piston, are packing-strips 18 of corresponding form in cross-section to the end that the arms of said T-shaped packing-strips shall limit their outward movement, and thus prevent their total disconnection from the piston.
19 designates a pair of T-shaped bolts, the arms of the same being of cylindrical formation and fitting snugly in the semieircular cavities 13, hereinbefore referred to, and held rotatably in said cavities by means of the bearing-caps 20, secured to the piston. (See Fig. l.)
The valves 2l, of segmental form, fit snugly in the recesses 12 and are balanced to the steam-pressure and clamped iirmly on the stems of said T-shaped bolts 19 by means of the nuts 22, and the sides of said valves adjacent to the bearing-caps are concaved, as at 23, so as to lit with comparative snugness against said caps and yet leave room for the passage of steam between them. Supposing the parts to be in the position shown in Fig. 1 and the piston rotating as indicated by the arrow in said figure, itWill be apparent that as the passages 15 have just passed out of register with the inlet-ports 7 the piston is rotating under the expansive action of the steam previously introduced, the exhaust-steam in advance of the lower valve 22 being exhausted through port 8. It is also obvious that this rotation of the piston under the expansive action of the steam will continue until the passages 16 register with the upper ends of the curved passages 7, by which time the valve 21 companion to said passages 16 will have advanced to a point forward of the vertical center of the machine, the joint between the piston and the inner wall of the cylinder being continued steam-tight by the' packingstrip 18 immediately following the piston, this packing-strip, and, in fact, all of the packingstrips except the one in engagement with the cylinder repressed by such engagement, being thrown outward by centrifugal power or force, as will be readily understood. At the .moment the valve companion to the passage 16 passes the vertical center of the machinethat'is, the moment its lip 24 passes the point where the piston and inner wall of the cylinder are nearest-and therefore begins to move outward under the power of the steam admitted through passages 16 the valve companion to passages 15 passes the vertical center ofthe engine below the shaft or the point where the piston and inner Wall of the cylinder are farthest from each other and by reason ofthe eccentric relation between its axisand' that ofthe cylinder commences to swing inward under the pressure of the cylinder, and duringithisitime any steam which may have got into the recess 12 behind said piston is forced ont between the valve and the bearingcaps 20. These valves are of such constructionthat their outer halves exceed the weight of the inner by just about the weight of the lips 24, whichflipswhen the valves are forced clearinto the recesses 12 occupy the offsetting notches 14. and are in position to receive the fullfbenefit and effect of the steam-pressure as .it isadmittedthrough passages 15 or 16.
The steam pressing forwardly against the valve and its lip 24E-holds the latter so tightly against the wall of the cylinder that a steamtightjoint isformed, and in order to prevent the steam getting in advance of the piston by entering the cavity 12 and then passing out between the valve and the bearing-caps the outer surface of the former is provided with a packing-strip 25, which engages the curved wall of the recess, and thereby prevents-steam from entering the recess, as will be readily understood. As the piston revolves a perfect steam-tight joint between the latter and that portion of the cylinder-wallnearest the axis vof the piston is maintained by one of the valves or by the strips 18, the latter being so numerous and arranged so closely together that before one is relieved from frictional engagement with said wall the second one engages it, and thereby prevents any back-leakage of steam, as will be readily understood.
Steam is admitted to the engine by way of the branch pipes 26, leading from the supplypipe 27.
From the above description it will be apparent that I have produced a rotary engine which embodies the features of advantage enumerated in the statement of invention,
and it is to be understood that I reserve the right to make such changes as do not involve a departure from the spirit and'scope of the invention.
Having thus described the invention,what
I claim as new, and desire to secure by Letters Patent, is- Y 1. A rotary engine, comprising a stationary cylinder having inlet and outlet ports, a shaft jonrnaled in and eccentrically of the cylinder, a piston mounted on the shaft and provided with peripheral packing-strips, cavities 12, andzwith ports in its side faces, T-bolts'pivoted to the piston, valves occupying said cavities 12 and secured to the stems of said T- bolts, said valves having lips to overlap the discharge ends-of the piston-ports when the valves are repressed'or forced completely in said cavities, substantially as described.
2. A rotary engine, comprisingastationary cylinder having inlet and outlet ports, a shaft journaled in and eccentrically ofthe cylinder, a piston mounted on the shaft and provided with peripheral packing-strips, cavities 12 having offsetting cavities 13, and with ports in its side faces, T-bolts having their heads of cylindrical formation and journaled in cavities 13, and bearing-caps 20 secured to the piston and holding said bolts pivotally in position, and valves clamped upon the stem of said bolts and concaved as at 23, and having lips to overlap the discharge ends of the piston-ports when the valves are repressed, substantially as described.
In testimony whereofk I'aflix my signature in the presence of two witnesses.
LIVY 1-I. ALLEN. Witnesses:
Jnssn F. NEWMAN, EUGENE ALLEN.
IOO
US71061799A 1899-03-27 1899-03-27 Rotary engine. Expired - Lifetime US640353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US71061799A US640353A (en) 1899-03-27 1899-03-27 Rotary engine.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71061799A US640353A (en) 1899-03-27 1899-03-27 Rotary engine.

Publications (1)

Publication Number Publication Date
US640353A true US640353A (en) 1900-01-02

Family

ID=2708937

Family Applications (1)

Application Number Title Priority Date Filing Date
US71061799A Expired - Lifetime US640353A (en) 1899-03-27 1899-03-27 Rotary engine.

Country Status (1)

Country Link
US (1) US640353A (en)

Similar Documents

Publication Publication Date Title
US465907A (en) Rotary steam-engine
US621193A (en) Rotary engine
US640353A (en) Rotary engine.
US254737A (en) Rotary steam-engine
US562843A (en) morse
US816285A (en) Rotary engine.
US586694A (en) Herman f
US152042A (en) Improvement in rotary engines
US663972A (en) Steam-engine.
US410043A (en) Rotary engine
US465947A (en) Rotary engine
US619434A (en) phifer
US310053A (en) Rotary engine
US888344A (en) Rotary engine.
US619129A (en) Rotary engine
US198214A (en) Improvement in rotary steam-engines
US158222A (en) Improvement in rotary engines and pumps
US549602A (en) Rotary engine
US420094A (en) Rotary reversible steam-engine
US727677A (en) Rotary steam-engine.
US652044A (en) Rotary engine.
US679129A (en) Rotary engine.
US650339A (en) Rotary steam-engine.
US444087A (en) Pleau
US610783A (en) Rotary engine