US1777179A - Four-cylinder, four-cycle cam and lever radial motor - Google Patents

Four-cylinder, four-cycle cam and lever radial motor Download PDF

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Publication number
US1777179A
US1777179A US359135A US35913529A US1777179A US 1777179 A US1777179 A US 1777179A US 359135 A US359135 A US 359135A US 35913529 A US35913529 A US 35913529A US 1777179 A US1777179 A US 1777179A
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United States
Prior art keywords
cylinder
lever
cam
levers
radial motor
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Expired - Lifetime
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US359135A
Inventor
Perlman David
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Priority to US359135A priority Critical patent/US1777179A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/06—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
    • F01B1/062—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement the connection of the pistons with an actuating or actuated element being at the inner ends of the cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/36—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle
    • F01L1/42—Valve-gear or valve arrangements, e.g. lift-valve gear peculiar to machines or engines of specific type other than four-stroke cycle for machines or engines characterised by cylinder arrangements, e.g. star or fan
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/1828—Cam, lever, and slide

Definitions

  • the present invention relates to improvements in mechanical movements, and more particularly refers to a mechanical movement applied to an internal combustion or other engine.
  • An object of the invention is to provide an engine of light weight, great power, low speed crank shaft and producing great leverage and power.
  • the figure is a plan view of an engine constructed according to the present invention.
  • 1 designates the drive or main shaft
  • valve cam disk is indicated at 3, having thereon the intake cams 4 and the exhaust cams 5.
  • a circular'cam or cam wheel 6 is also made fast on the shaft 1.
  • cam disk 6 On this cam disk 6 are cams 7 engaged by rollers 9 carried upon the intermediate parts of levers 8.
  • Pins 10 connect the rollers 9 to the levers 8.
  • Links 11 connect-the intermediate portions of adjacent levers 8 together, the pins 10 being utilized .for. connecting the links to the levers.
  • Piston rods or other rods 13 are coupled to the levers 8 at one end, as by the pins 12.
  • Other pins Mat the opposite ends of the levers 8 'ivotally secure the levers 8 to-ribs 16 extending inwardly from the housing 15.
  • the connecting rods 13 are, of course,.coupled to the pistons which operate in the cylinders, ders being conventionally shown.
  • the links 11 connect the rollers of adjacent levers and keep the rollers continuously riding the cam disk.
  • the improved device eliminates the necessity of-valve timing gears, and creates three working strokes per cylinder per revolution.
  • the pressure exerted by the piston thrust through the center of the lever on the cam disk, by means of the roller, to the drive shaft is increased approximately fifty per cent or more.
  • the hammering effect of the piston thrust is reduced.
  • the firing order being in rotation, considerable vibration iselimmated.
  • the motor will have more impulses and power than any four cylinder motor of ra- 7 dial design having equal cylinder dimensions and specifications.
  • the ribs 16 being integral with the housing, tend to strengthen the same.
  • the weight per horse power is also greatly reduced.
  • a rotary element In a mechanical movement, a rotary element, a reciprocating element, a connecting rod pivoted at one end to the reciprocat- 7 ing element, a lever pivoted at one end to the other end of the connecting rod, said lever having a fixed fulcrum'at its opposite end, a roller offset toward the rotary element from the intermediate part of the lever, and a circular cam fixed to the rotary ele- 9 ment and havin rounded pockets of a size to receive the roIler and convex high points between the pockets also to engage said roller.
  • DAVID PERLMAN DAVID PERLMAN.

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

Description

D. PERLMAN Sept. 30, 1930.
FOUR-CYLINDER, FOUR-CYCLE CAM AND LEVER RADIAL MOTOR Filed April 29, 1929 pay id Per Zmai LIttornel S.
Fatented Sept. 30, law
may
DAVID IEBLMAN, OF NEW ORLEANS, LOUISIANA.
FOUR-CYLINDER, FOUR-CYCLE CAM AND LEVER RADIAL MOTOR Application filed April 29,
The present invention relates to improvements in mechanical movements, and more particularly refers to a mechanical movement applied to an internal combustion or other engine.
An object of the invention is to provide an engine of light weight, great power, low speed crank shaft and producing great leverage and power.
WVith the foregoing and other objects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claims appended hereto.
In the drawings, wherein like symbolswrefer. to like or corresponding parts throughout the several views,
The figure is a plan view of an engine constructed according to the present invention.
Referring more particularly to the drawings, 1 designates the drive or main shaft,
' which is journalled in bearings 2 of any appropriate character.
The valve cam disk is indicated at 3, having thereon the intake cams 4 and the exhaust cams 5.
A circular'cam or cam wheel 6 is also made fast on the shaft 1. On this cam disk 6 are cams 7 engaged by rollers 9 carried upon the intermediate parts of levers 8. Pins 10 connect the rollers 9 to the levers 8. Links 11 connect-the intermediate portions of adjacent levers 8 together, the pins 10 being utilized .for. connecting the links to the levers. Piston rods or other rods 13 are coupled to the levers 8 at one end, as by the pins 12. Other pins Mat the opposite ends of the levers 8 'ivotally secure the levers 8 to-ribs 16 extending inwardly from the housing 15. The connecting rods 13 are, of course,.coupled to the pistons which operate in the cylinders, ders being conventionally shown.
In operation, the explosions occur in the engine cylinder in the usual manner, and
through the connecting rods 13, levers 8 and rollers '9 reacting on the cams 7, the cam disk 6 and the shaft 1 are thus made to rotate. The small cams 4 and 5 are also rotated to operate the valve assembly in a wellthe pistons and the cylin- 1929. Serial No. 359,135.
known manner. The links 11 connect the rollers of adjacent levers and keep the rollers continuously riding the cam disk.
The improved device eliminates the necessity of-valve timing gears, and creates three working strokes per cylinder per revolution. By means of the lever principle, the pressure exerted by the piston thrust through the center of the lever on the cam disk, by means of the roller, to the drive shaft is increased approximately fifty per cent or more. Also due to this cam and lever arran ement, the hammering effect of the piston thrust is reduced. The firing order being in rotation, considerable vibration iselimmated. As a resultof the increased number of power impulses in one revolution upon the drive shaft, the drive shaft speed also is greatly reduced. The motor will have more impulses and power than any four cylinder motor of ra- 7 dial design having equal cylinder dimensions and specifications. The ribs 16, being integral with the housing, tend to strengthen the same. The weight per horse power is also greatly reduced.
Having thus described the invention, what is claimed is:
1. In a mechanical movement, cylinders radially arranged, pistons therein, levers having one end secured to fixed fulcrums, so and the other end coupled to the pistons, a main shaft, a cam wheel fixed to said main shaft and acted on by the intermediate portions of the levers, and links for connecting the intermediate portions. of the levers together. 7
2. In a mechanical movement, a rotary element, a reciprocating element, a connecting rod pivoted at one end to the reciprocat- 7 ing element, a lever pivoted at one end to the other end of the connecting rod, said lever having a fixed fulcrum'at its opposite end, a roller offset toward the rotary element from the intermediate part of the lever, and a circular cam fixed to the rotary ele- 9 ment and havin rounded pockets of a size to receive the roIler and convex high points between the pockets also to engage said roller. DAVID PERLMAN.
US359135A 1929-04-29 1929-04-29 Four-cylinder, four-cycle cam and lever radial motor Expired - Lifetime US1777179A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US359135A US1777179A (en) 1929-04-29 1929-04-29 Four-cylinder, four-cycle cam and lever radial motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US359135A US1777179A (en) 1929-04-29 1929-04-29 Four-cylinder, four-cycle cam and lever radial motor

Publications (1)

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US1777179A true US1777179A (en) 1930-09-30

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099223A (en) * 1961-08-08 1963-07-30 Citroen Sa Andre Pumps, more particularly volumetric pumps
US3738180A (en) * 1970-09-15 1973-06-12 Fiat Spa Control devices
US5279209A (en) * 1990-05-22 1994-01-18 Split Cycle Technology, Ltd. Rotary machine
US6125802A (en) * 1998-05-20 2000-10-03 Pen; Pao Chi Piston engine powertrain
US20070056552A1 (en) * 2005-09-14 2007-03-15 Fisher Patrick T Efficiencies for piston engines or machines

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099223A (en) * 1961-08-08 1963-07-30 Citroen Sa Andre Pumps, more particularly volumetric pumps
US3738180A (en) * 1970-09-15 1973-06-12 Fiat Spa Control devices
US5279209A (en) * 1990-05-22 1994-01-18 Split Cycle Technology, Ltd. Rotary machine
US6125802A (en) * 1998-05-20 2000-10-03 Pen; Pao Chi Piston engine powertrain
US20070056552A1 (en) * 2005-09-14 2007-03-15 Fisher Patrick T Efficiencies for piston engines or machines
US7328682B2 (en) * 2005-09-14 2008-02-12 Fisher Patrick T Efficiencies for piston engines or machines
US20080141855A1 (en) * 2005-09-14 2008-06-19 Fisher Patrick T Efficiencies for cam-drive piston engines or machines
US7552707B2 (en) 2005-09-14 2009-06-30 Fisher Patrick T Efficiencies for cam-drive piston engines or machines

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