US2383136A - Double-action piston rod - Google Patents

Double-action piston rod Download PDF

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Publication number
US2383136A
US2383136A US495508A US49550843A US2383136A US 2383136 A US2383136 A US 2383136A US 495508 A US495508 A US 495508A US 49550843 A US49550843 A US 49550843A US 2383136 A US2383136 A US 2383136A
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United States
Prior art keywords
rod
piston rod
double
action piston
spring
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Expired - Lifetime
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US495508A
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Roy C Laurain
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/04—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads with elastic intermediate part of fluid cushion
    • 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
    • Y10T74/21—Elements
    • Y10T74/2142—Pitmans and connecting rods
    • Y10T74/2144—Yieldable
    • Y10T74/2146—Longitudinal springs

Definitions

  • Thi invention relates tonew and useful imcially adapted for use on radial engines, but which can be used for other types of engines as well.
  • An important object of the present invention is to provide a piston constructed in yieldabie sections and adapted to operate unyieldingly to a point Just below the burning point oi fuel where to the utmost point in the companion cylinder to completely expel burnt gases,
  • Figure 2 is a front elevational view of the rod.
  • Figure 3 is an enlarge longitudinal sectional view taken on the line 3-4 of Figure 2.
  • Figure 4 is a cross section on the line I-I of Figure 2.
  • Figure 5 is an end elevational view looking at the inner end of the rod section.
  • Figure 6 is a section on the line I-I of FigureI.
  • Figure 'I is a fragmentary side elevation showing how the rod is connected to a radial engine master ring. J
  • the described piston rod is adapted to be extended by the springs l3 and ,the spring I I functioning to cushion and limit extension of the same.
  • the piston rod descends fully extended.
  • On the compression, up stroke it ascends fully extended until the compression. overcomes the springs II, II, and Just before full compression, said rod contracts allowing the crank shaft, not shown, to attain vertical center while the said rod is contracted and without the piston, not shown, passing from compression position. .
  • On the power-stroke the piston rod descends contracted.
  • the spring II acts as asupplemental means for cushioning the rod section I against the force of the'explosion.
  • Figure 7 shows how a rod constructed as above Q is connected with a master ring II of a radial englue.
  • Numeral II generally refers to the fixed rod or such an engine and this fixed rod is con- Referring to; the drawings wherein like numerals designate like parts, it can be seen that numeral I denotes a rod section having anupper threaded end I disposed into a socket 1 'carried by a. wrist Din bearing I. the latter having a liner I.
  • the other end of the rod section I hasa head the head II on the rod-section I is a weakercom- V pressionspring II.
  • Numeral II denotes a compression spring which is stronger than the'spring ll but substantially weaker than the spring II and this spring II is interposed between the head II of the rod section I and the distal end of the barrel II;
  • a piston rod structure comprising a barrel having a bushing at one'end thereof, a rod slidably disposed in the bushing and rovided at one end with a head in the barrel. a bearing at the other end of the rod, a compression spring interposed between the bearing and'thebushing.
  • means in the barrel acting on said head comprising a spring interposed between the bushing and the headof the rod and weaker than the 'first-mentionedspring. and a sprihsin m between the head andthe other end'of the barrel weaker than the first-mentioned spring and stronger than the second-mentioned spring.

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

Description

Aug. 21, 1945. R. c. LAURAIN DOUBLE ACTION PISTON ROD Fil ed July 20. 19,45 2 sheets-sheet 1 Ina/2mm Aug. 21, 1945. c, 2,383,136
DOUBLE ACTION PISTON ROD Filed July 20, 1943' 2 Sheets-Sheet 2 am 5*," z 777.3. I: ll/
Inventor 1 9 0 lawr-azwl [8a 24mm...
l Patented Aug. 21, 1945 resins i UNETED STATES PATEN T QFFII'JIE.
DOUBLE-ACTION ms'ron ROD Roy 0. Laurain, Deal-born, Mich, ApplicationJnly 20, 1943. Serial No. 495,503
1 Claim,
Thi invention relates tonew and useful imcially adapted for use on radial engines, but which can be used for other types of engines as well.
An important object of the present invention is to provide a piston constructed in yieldabie sections and adapted to operate unyieldingly to a point Just below the burning point oi fuel where to the utmost point in the companion cylinder to completely expel burnt gases,
Other objects and advantages of the invenfollowing description.
In the drawingsisure ton rod.
Figure 2 is a front elevational view of the rod. Figure 3 is an enlarge longitudinal sectional view taken on the line 3-4 of Figure 2. Figure 4 is a cross section on the line I-I of Figure 2.
Figure 5 is an end elevational view looking at the inner end of the rod section.
Figure 6 is a section on the line I-I of FigureI.
Figure 'I is a fragmentary side elevation showing how the rod is connected to a radial engine master ring. J
' tion will become apparent the reader of ,the
1 is a side elevationalview of the pisr it will yield, but which upon scavenging operation will function to move the corresponding piston Oil ducts II, R extend downwardly from the bearing I and through the rod section I to the barrel II and a duct or ducts 2I serve to communicate the bearing II- with the interior of the barrel Il. e
As will be seen. the described piston rod is adapted to be extended by the springs l3 and ,the spring I I functioning to cushion and limit extension of the same. on the down, intake stroke, the piston rod descends fully extended. On the compression, up stroke, it ascends fully extended until the compression. overcomes the springs II, II, and Just before full compression, said rod contracts allowing the crank shaft, not shown, to attain vertical center while the said rod is contracted and without the piston, not shown, passing from compression position. .On the power-stroke, the piston rod descends contracted. On the exhaust, up stroke. said rod ascends extended, so that the piston is forced into the compression space or chamber, not shown, to scavenge the same. 0n the power. down stroke.
the spring II acts as asupplemental means for cushioning the rod section I against the force of the'explosion.
Figure 7 shows how a rod constructed as above Q is connected with a master ring II of a radial englue. Numeral II generally refers to the fixed rod or such an engine and this fixed rod is con- Referring to; the drawings wherein like numerals designate like parts, it can be seen that numeral I denotes a rod section having anupper threaded end I disposed into a socket 1 'carried by a. wrist Din bearing I. the latter having a liner I.
The other end of the rod section I hasa head the head II on the rod-section I is a weakercom- V pressionspring II.
Numeral II denotes a compression spring which is stronger than the'spring ll but substantially weaker than the spring II and this spring II is interposed between the head II of the rod section I and the distal end of the barrel II; The
latter end ofthe barrel II has amaster rod or crankshaft bearingi'i in whicnthe liner II is 65 structed in accordance with the present invention.
While the foregoing specification sets forth the invention in specific terms, it is is to be understood that numerous changes in the shape. size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.
Having described the Inventiomwhat is claimed as new is: V e
A piston rod structure comprising a barrel having a bushing at one'end thereof, a rod slidably disposed in the bushing and rovided at one end with a head in the barrel. a bearing at the other end of the rod, a compression spring interposed between the bearing and'thebushing. and
means in the barrel acting on said head comprising a spring interposed between the bushing and the headof the rod and weaker than the 'first-mentionedspring. and a sprihsin m between the head andthe other end'of the barrel weaker than the first-mentioned spring and stronger than the second-mentioned spring.
no? c. muasnz.
US495508A 1943-07-20 1943-07-20 Double-action piston rod Expired - Lifetime US2383136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655224A (en) * 1950-03-20 1953-10-13 Joyce Cridland Co Door control for the rear lifting mechanism of two post lifts
US4571162A (en) * 1982-07-28 1986-02-18 Ira M. Patton Oil well sucker rod shock absorber
DE3804859A1 (en) * 1988-02-17 1989-08-31 Schwarz Helmut Sprung connecting rod
US5931134A (en) * 1997-05-05 1999-08-03 Devik International, Inc. Internal combustion engine with improved combustion
DE102007026312A1 (en) * 2007-06-06 2008-12-11 Karl Richter Connecting rod/con-rod for internal combustion engines has a power reservoir for transferring power between a piston and a crankshaft
US8826547B2 (en) 2008-11-25 2014-09-09 Robert Bosch Gmbh Impact absorption drive mechanism for a reciprocating tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655224A (en) * 1950-03-20 1953-10-13 Joyce Cridland Co Door control for the rear lifting mechanism of two post lifts
US4571162A (en) * 1982-07-28 1986-02-18 Ira M. Patton Oil well sucker rod shock absorber
DE3804859A1 (en) * 1988-02-17 1989-08-31 Schwarz Helmut Sprung connecting rod
US5931134A (en) * 1997-05-05 1999-08-03 Devik International, Inc. Internal combustion engine with improved combustion
DE102007026312A1 (en) * 2007-06-06 2008-12-11 Karl Richter Connecting rod/con-rod for internal combustion engines has a power reservoir for transferring power between a piston and a crankshaft
US8826547B2 (en) 2008-11-25 2014-09-09 Robert Bosch Gmbh Impact absorption drive mechanism for a reciprocating tool

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