US116582A - Improvement in rotary engines - Google Patents

Improvement in rotary engines Download PDF

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US116582A
US116582A US116582DA US116582A US 116582 A US116582 A US 116582A US 116582D A US116582D A US 116582DA US 116582 A US116582 A US 116582A
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improvement
rotary engines
cylinder
francis
piston
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C2/00—Rotary-piston engines
    • F03C2/30—Rotary-piston engines having the characteristics covered by two or more of groups F03C2/02, F03C2/08, F03C2/22, F03C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • 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
    • F04C2/3441—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 one line or continuous surface substantially parallel to the axis of rotation

Definitions

  • RAN SOME N FRANCIS AND RUSSEL FRANCIS, OF GIRARD, PENNSYLVANIA.
  • This invention relates to new and useful improvements in rotary steam-engines, and consists in the construction and arrangement of parts hereinafter described.
  • Figure 1 represents a sectional side elevation, the section being taken on the line a: of Fig. 2.
  • Fig. 2 is a sectional elevation taken on the line 1/ y of Fie'. 1, showing a double cylinder and the valve-motion.
  • A is the bed-plate.
  • B is the cylinder-casing attached to the bed, and held stationary by the stands C C.
  • D D are the cylinders, equal in diameter, and arranged side by side, as seen in Fig. 2.
  • Each cylinder has a single piston, and an induction and exhaust-valve.
  • E E are the exhaustports, and F F the induction-ports.
  • G G are the stea1n-chests.
  • H is a piston in each cylinder, one being seen in dotted lines. The mode of operating ⁇ the valves is seen in Fig. 2.
  • I I are the double valves that is, an induction and exhaust-valve for each cylinder-operated alternately by means ofthe eccentric grooves J J (on the shaft) and the levers K K.
  • L is an abutment foreach cylinder, operated by the eccentric grooves m m. on the outer sides of the revolving piston-wheel N, the latter being secured firmly to the shaft O.
  • Fig. l an abutment is seen closing one of the cylinders, and the piston in position for taking steam.
  • the abutment-s work alternately.
  • RANSOME N FRANCIS. RUSSEL FRANCIS.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hydraulic Turbines (AREA)

Description

@2M i PATENTED- JUL 41871 UNITED STATES TENT OFFICE.
RAN SOME N. FRANCIS AND RUSSEL FRANCIS, OF GIRARD, PENNSYLVANIA.
IMPROVEMENT IN ROTARY ENGINES.
Specification forming part of Letters Patent No. 116,582, dated July 4, 1871.
To all 'whom it may concern:
Be it known that we, RANsoME N. FRANCIS and RUSSEL FRANCIS, of Girard, in the county of Erie and State of Pennsylvania, have invented a new and useful Improvement in Rotary Engines; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification.
This invention relates to new and useful improvements in rotary steam-engines, and consists in the construction and arrangement of parts hereinafter described.
In the accompanying drawing, Figure 1 represents a sectional side elevation, the section being taken on the line a: of Fig. 2. Fig. 2 is a sectional elevation taken on the line 1/ y of Fie'. 1, showing a double cylinder and the valve-motion.
Similar letters of' reference indicate correspon ding parts.
A is the bed-plate. B is the cylinder-casing attached to the bed, and held stationary by the stands C C. D D are the cylinders, equal in diameter, and arranged side by side, as seen in Fig. 2. Each cylinder has a single piston, and an induction and exhaust-valve. E E are the exhaustports, and F F the induction-ports. G G are the stea1n-chests. H is a piston in each cylinder, one being seen in dotted lines. The mode of operating` the valves is seen in Fig. 2. I I are the double valves that is, an induction and exhaust-valve for each cylinder-operated alternately by means ofthe eccentric grooves J J (on the shaft) and the levers K K. L is an abutment foreach cylinder, operated by the eccentric grooves m m. on the outer sides of the revolving piston-wheel N, the latter being secured firmly to the shaft O. In Fig. l an abutment is seen closing one of the cylinders, and the piston in position for taking steam. The abutment-s work alternately.
When one piston is operatin g under the pressure of steam the other cylinder is exhausting the steam, so that the steam pressure is constant.
By this arrangement there can be no dead-centers, or no loss of power caused thereby.
Having thus described our invention, we claim as new and desire to secure by Letters Patent- The arrangement of the steam-chests G G, valves I, abutments L, eccentric grooves J and m, casing B, piston-wheel N, and shaft O, substantially as and for the purposes described.
RANSOME N. FRANCIS. RUSSEL FRANCIS.
Witnesses IRA PICKETT, HENRY BALI..
US116582D Improvement in rotary engines Expired - Lifetime US116582A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270660A (en) * 1979-02-14 1981-06-02 Putt Arthur G Taco holders
US20030214902A1 (en) * 2002-03-07 2003-11-20 Katsuyuki Yamada Optical recording medium and method for manufacturing the optical recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270660A (en) * 1979-02-14 1981-06-02 Putt Arthur G Taco holders
US20030214902A1 (en) * 2002-03-07 2003-11-20 Katsuyuki Yamada Optical recording medium and method for manufacturing the optical recording medium

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