US3195420A - Dual piston unit for internal combustion engine - Google Patents

Dual piston unit for internal combustion engine Download PDF

Info

Publication number
US3195420A
US3195420A US316857A US31685763A US3195420A US 3195420 A US3195420 A US 3195420A US 316857 A US316857 A US 316857A US 31685763 A US31685763 A US 31685763A US 3195420 A US3195420 A US 3195420A
Authority
US
United States
Prior art keywords
eccentric
drive shaft
piston
pistons
internal combustion
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
US316857A
Inventor
Donald J Johannsen
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 US316857A priority Critical patent/US3195420A/en
Application granted granted Critical
Publication of US3195420A publication Critical patent/US3195420A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01BMACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/02Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with crankshaft
    • F01B9/026Rigid connections between piston and rod; Oscillating pistons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/16Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18Multi-cylinder engines
    • F02B75/24Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F02B75/246Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "pancake" type, e.g. pairs of connecting rods attached to common crankshaft bearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00Shafts; Axles; Cranks; Eccentrics
    • F16C3/04Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/18Eccentric-shafts
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/18Mechanical movements
    • Y10T74/18056Rotary to or from reciprocating or oscillating
    • Y10T74/18248Crank and slide

Definitions

  • This invention comprises a novel and useful dual piston unit for internal combustion engines and more particularly pertains to an eccentric transmission mechanism for connecting the reciprocating pistons of an internal combustion engine to a rotating drive shaft.
  • the primary object of this invention is to provide an internal combustion engine of the opposed cylinder and piston type with an improved eccentric type transmission mechanism by which the pistons are connected to a common drive shaft.
  • a further object of the invention is to provide a transmission device in accordance with the foregoing object which shall enable opposed alined pistons to be rigidly connected together and to be attached to a single eccentric on the drive shaft.
  • a further object of the invention is to provide a transmission mechanism in accordance with the foregoing objects whereby the plurality of pairs of opposed pistons may be connected to the same drive shaft by an eccentric mechanism for each pair of pistons and wherein the mechanisms are so arranged that they may be assembled upon or removed from the drive shaft from one end thereof.
  • a still further object of the invention is to provide an internal combustion engine in accordance with the preceding objects and wherein the transmission mechanism connecting the pistons to the drive shaft shall be equally applicable to engines of the single-acting or double-acting type.
  • FIGURE 1 is a fragmentary view in top plan showing the arrangement of two pairs of horizontally alined cylinders and pistons connected to a common drive shaft disposed therebetween, certain concealed parts being shown in dotted lines and certain parts being omitted and other parts being broken away and shown in section;
  • FIGURE 2 is a view in central vertical longitudinal section taken substantially upon the plane indicated by section line 2-2 of FIGURE 1 and showing the connection of a pair of opposed pistons to each other and to a common drive shaft, parts being broken away and shown in vertical section;
  • FIGURE 3 is an exploded perspective View of a portion of the drive shaft and of the eccentric mechanisms .associated therewith;
  • FIGURE 4 is a plan view showing a modified construction by which a double-acting piston unit is connected to a drive shaft through the transmission mechanisms of this invention.
  • FIGURE 5 is a View in horizontal section taken substantially upon the plane indicated by the section line 55 of FIGURE 4.
  • the numeral designates generally an internal combustion engine of the type having a plurality of pairs of horizontally disposed cylinder and piston units positioned on opposite sides of a single drive shaft 12 disposed therebetween. Since the details of the engine structure in themselves form no part of the invention set forth and claimed hereinafter, a further showing and description thereof is deemed to be unnecessary.
  • the cylinders are shown at 14 while the associated pistons are indicated at 16.
  • the cylinder units are provided with theusual fuel supply and exhaust gas discharge means, not shown, and the combustible mixture is ignited therein as by a conventional igniting device such as a spark plug 18 from any conventional type of ignition system, not shown.
  • each piston is connected to a single rigid connecting rod indicated generally by the numeral 20.
  • This connecting rod includes two complementary connecting rod sections each indicated by the numeral 22 and each of which is rigidly secured to an associated piston 16 as by means of the fastening bolts 24 as shown in FIGURE 2.
  • the two piston rod sections 22 are detachably secured together as by fastening bolts 26, these piston rod ends being enlarged to provide complementary halves of a cylindrical chamber 28.
  • the two piston rod sections are thus clamped upon an eccentric mechanism which is journaled in the chamber 28 and which is connected to the drive shaft 12 whereby rotation of the shaft will result in reciprocation of the associated pair of pistons and vice versa.
  • piston rods are rigidly connected to the pistons and to each other so as to provide a rigid unit mounted for straight line motion along the axes of the two associated cylinder units. Any side thrust resulting from the arrangement is borne by the bearing engagement of the pistons 16 in their cylinder unit 14.
  • the drive shaft 12 has a plurality of longitudinally spaced eccentric disks, two of which are shown at 30 and 32 and which are fixedly secured to the shaft.
  • the disks are of different diameters, that shown at 30 being larger than that shown at 32 for a purpose to be subsequently apparent.
  • mounted upon the disk 32 is a shell 34 whose outer diameter is equal to that of the other eccentric disk 30, as indicated by the dotted projection lines 36 of FIGURE 3 for comparative purposes.
  • a pair of eccentric rings 38 and 40 are provided which respectively are journaled upon and encircle the disk 30 and the disk 32 with its shell 34, these eccentric rings being of the same external diameter and being each received in one of the chambers 28 as previously mentioned. It will be observed that the ring 38 has a centrally disposed aperture 42 therein while the ring 40 has a similarly disposed aperture 44. These apertures are of the same diameter inasmuch as they are journaled upon the disk 30 and the combined disk 32 with its shell 34 which likewise have the same external diameters.
  • the arrangement is such that owing to the difference in the diameter of the disks 30 and 32, the eccentric ring 38 can be readily slid endwise over the disk 32 into its seated position upon the disk 30. Thereafter, the shell 34 may be applied to the disk 32 and the eccentric ring 40 may be then applied thereto.
  • the ring 34 may be secured in the .ap'erture 44 of the disk 40 if desired.
  • the arrangement is such that although the eccentric disks are of different diameters for the purpose above set forth, the two ec centric mechanisms impart identically the same throw or travel to the two piston rods 20 which are connected thereto.
  • each of these cylindrical bearing surfaces may have anti-friction bearing assemblies such as balls, rollers or the like or otherrantifriction surfaces applied thereto.
  • Thetwo oppositely rotating eccentric and eccentric ring units will thus eifect rotation'ofthe drive shaft 12 while permitting the piston rod unit to maineccentric disk e ach pair of pistons having a rigidly connected piston rod extending therebetween, the mid-portion of each rod having a bearing chamber, an eccentric ring-received in each bearing chamber and being journaled on an eccentric disk, a bearing shell journ aled on the smaller eccentric disk and being journaled' in the tain a straight line motion across the axis of thisdri ve I shaft.
  • the two units 30 and 38 byro-tating in opposite I I directions will obtain a counterbalancing' eifect for the mechanism.
  • single-acting pistons .16 have beenillustrated in the cylinder units 14.
  • the invention is equally applicable to an engine in which double-acting pistons are employed Thisrwill necessitate a somewhat different connection of the piston rods to the piston units in order to permit the obtaining ofpower impulses at both ends of each cylinder unit.
  • the cylinderunits 60 are provided with spark plugs 62 at each end thereof with a piston unit 64 being dispose-d therebetween and being reciprocable toward-s and from each of the spark plug units.
  • the opposite side walls of the cylinder units ,60 are necessarily provided with longitudinally extending slots 66 therethrcugh in order that a transversely, dispose-d,- piston pin 68 of each'of the pistons may -be reciprocable in these slots and project to the exterior of the cylinder.
  • piston pins are connected to pairs of piston rod sections 70 which correspond to the single piston rod sections 22 of the preceding embodiment.
  • the two sections 70 of each piston are bolted to complementary sectionsrof the opposite ;alined piston,
  • thisform of the invention is identical to that previously described except that the cylinders are double-acting in that, charges are taken into and fired successively at opposite ends of each cylinder.
  • each pistonrod comprises two sections each'rigidlylconn'ected atone end posed slot, piston pinseach-slidable' in a'slot and secured to a piston, said piston rod being disposedupon the exterior of saidicylinders and secured to the ends of said pistonpin.
  • each piston rod detachably I connecting a mid portion ofthe'latter to said drive shaft and converting reciprocationof saidpiston to rotation of said drive shaft
  • eacheccentric mechanism comprising aneccentr'ic disk fixed to said "drive shaft and an eccentric chamber in the associated piston rod mid-portion together, with an eccentric; ring mounted in the associated eccentriccharnber and mount-ed upon the associated eccentric disk, 1
  • one of the: eccentric disks, eccentric rings and eccentricrhousin-gsof one" of said eccentric mechanism being ofa ditferent sizefrom the corresponding element of the other eccentric mechanisms while the correspondingremaining elements of all of said eccentric mechanism are of the .same size whereby upon removal of said bearing shell all of the piston rod, may be slid axially diet and. onto said drive shaft from one :end thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transmission Devices (AREA)

Description

July 20, 1965 D. J. JOHANNSEN DUAL PISTON UNIT FOR INTERNAL COMBUSTION ENGINE Filed 001;. 17, 1963 2 M a M Y 0 B TEEIIIIL July 20, 1965 D. J. JOHANNSEN DUAL PISTON UNIT FOR INTERNAL COMBUSTION ENGINE Filed 061',- 17, 1965 2, Sheets-Sheet 2 Donald J Johannsen 1 N VEN TOR. Mm BY w United States Patent Office 3,195,420 Patented July 20, 1965 3,195,420 DUAL PISTON UNIT FOR INTERNAL COMBUSTIQN ENGINE Donald J. .lohannsen, Primghar, Iowa Filed Get. 17, 1963,Ser. No. 316,857 7 Claims. (Cl. 92--74) This invention comprises a novel and useful dual piston unit for internal combustion engines and more particularly pertains to an eccentric transmission mechanism for connecting the reciprocating pistons of an internal combustion engine to a rotating drive shaft.
The primary object of this invention is to provide an internal combustion engine of the opposed cylinder and piston type with an improved eccentric type transmission mechanism by which the pistons are connected to a common drive shaft.
A further object of the invention is to provide a transmission device in accordance with the foregoing object which shall enable opposed alined pistons to be rigidly connected together and to be attached to a single eccentric on the drive shaft.
A further object of the invention is to provide a transmission mechanism in accordance with the foregoing objects whereby the plurality of pairs of opposed pistons may be connected to the same drive shaft by an eccentric mechanism for each pair of pistons and wherein the mechanisms are so arranged that they may be assembled upon or removed from the drive shaft from one end thereof.
A still further object of the invention is to provide an internal combustion engine in accordance with the preceding objects and wherein the transmission mechanism connecting the pistons to the drive shaft shall be equally applicable to engines of the single-acting or double-acting type.
These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:
FIGURE 1 is a fragmentary view in top plan showing the arrangement of two pairs of horizontally alined cylinders and pistons connected to a common drive shaft disposed therebetween, certain concealed parts being shown in dotted lines and certain parts being omitted and other parts being broken away and shown in section;
FIGURE 2 is a view in central vertical longitudinal section taken substantially upon the plane indicated by section line 2-2 of FIGURE 1 and showing the connection of a pair of opposed pistons to each other and to a common drive shaft, parts being broken away and shown in vertical section;
FIGURE 3 is an exploded perspective View of a portion of the drive shaft and of the eccentric mechanisms .associated therewith;
FIGURE 4 is a plan view showing a modified construction by which a double-acting piston unit is connected to a drive shaft through the transmission mechanisms of this invention; and,
FIGURE 5 is a View in horizontal section taken substantially upon the plane indicated by the section line 55 of FIGURE 4.
Referring first to FIGURE 1, the numeral designates generally an internal combustion engine of the type having a plurality of pairs of horizontally disposed cylinder and piston units positioned on opposite sides of a single drive shaft 12 disposed therebetween. Since the details of the engine structure in themselves form no part of the invention set forth and claimed hereinafter, a further showing and description thereof is deemed to be unnecessary. The cylinders are shown at 14 while the associated pistons are indicated at 16. The cylinder units are provided with theusual fuel supply and exhaust gas discharge means, not shown, and the combustible mixture is ignited therein as by a conventional igniting device such as a spark plug 18 from any conventional type of ignition system, not shown.
In accordance with this invention there is provided an eccentric mechanism for connecting each pair of opposed pistons to the same throw of the drive shaft 12. Referring now particularly to FIGURE 2 it will be observed that each piston is connected to a single rigid connecting rod indicated generally by the numeral 20. This connecting rod includes two complementary connecting rod sections each indicated by the numeral 22 and each of which is rigidly secured to an associated piston 16 as by means of the fastening bolts 24 as shown in FIGURE 2. At their outer ends, the two piston rod sections 22 are detachably secured together as by fastening bolts 26, these piston rod ends being enlarged to provide complementary halves of a cylindrical chamber 28. The two piston rod sections are thus clamped upon an eccentric mechanism which is journaled in the chamber 28 and which is connected to the drive shaft 12 whereby rotation of the shaft will result in reciprocation of the associated pair of pistons and vice versa.
It should be here noted that the piston rods are rigidly connected to the pistons and to each other so as to provide a rigid unit mounted for straight line motion along the axes of the two associated cylinder units. Any side thrust resulting from the arrangement is borne by the bearing engagement of the pistons 16 in their cylinder unit 14.
As will be apparent from FIGURE 1 in connection with FIGURE 3, the drive shaft 12 has a plurality of longitudinally spaced eccentric disks, two of which are shown at 30 and 32 and which are fixedly secured to the shaft. The disks are of different diameters, that shown at 30 being larger than that shown at 32 for a purpose to be subsequently apparent. However, mounted upon the disk 32 is a shell 34 whose outer diameter is equal to that of the other eccentric disk 30, as indicated by the dotted projection lines 36 of FIGURE 3 for comparative purposes.
A pair of eccentric rings 38 and 40 are provided which respectively are journaled upon and encircle the disk 30 and the disk 32 with its shell 34, these eccentric rings being of the same external diameter and being each received in one of the chambers 28 as previously mentioned. It will be observed that the ring 38 has a centrally disposed aperture 42 therein while the ring 40 has a similarly disposed aperture 44. These apertures are of the same diameter inasmuch as they are journaled upon the disk 30 and the combined disk 32 with its shell 34 which likewise have the same external diameters.
The arrangement is such that owing to the difference in the diameter of the disks 30 and 32, the eccentric ring 38 can be readily slid endwise over the disk 32 into its seated position upon the disk 30. Thereafter, the shell 34 may be applied to the disk 32 and the eccentric ring 40 may be then applied thereto.
Alternatively, the ring 34 may be secured in the .ap'erture 44 of the disk 40 if desired. The arrangement is such that although the eccentric disks are of different diameters for the purpose above set forth, the two ec centric mechanisms impart identically the same throw or travel to the two piston rods 20 which are connected thereto.
Although for the means of illustration there has been shown only sliding cylindrical surfaces in the bearings between the eccentrics 30 and 32 and the eccentric rings 38 and 40, it will be appreciated that each of these cylindrical bearing surfaces -may have anti-friction bearing assemblies such as balls, rollers or the like or otherrantifriction surfaces applied thereto.
I The operation of this mechanism will be readily ,understood from a consideration of FIGURE 2. The position of the eccentrics is so timed with respect to the position of the pistons th'atwhen the piston at the right side. of the unit is on its power stroke and, moves towards the left, the crankshaft 12' and its eccentric disk 30 will be rotated in a clockwise direction assh-own by the arrow 50. At the" same time, theec'centric ring 38 will be rotated in a counterclockwise direction as shown by opposite sides of said shaft and in-alinement with each the arrow 52. Thetwo oppositely rotating eccentric and eccentric ring units will thus eifect rotation'ofthe drive shaft 12 while permitting the piston rod unit to maineccentric disk e ach pair of pistons having a rigidly connected piston rod extending therebetween, the mid-portion of each rod having a bearing chamber, an eccentric ring-received in each bearing chamber and being journaled on an eccentric disk, a bearing shell journ aled on the smaller eccentric disk and being journaled' in the tain a straight line motion across the axis of thisdri ve I shaft. The two units 30 and 38 byro-tating in opposite I I directions will obtain a counterbalancing' eifect for the mechanism. I I
Inthe embodiment of FIGURE 2, single-acting pistons .16 have beenillustrated in the cylinder units 14. However, the invention is equally applicable to an engine in which double-acting pistons are employed Thisrwill necessitate a somewhat different connection of the piston rods to the piston units in order to permit the obtaining ofpower impulses at both ends of each cylinder unit.
Referring to FIGURESA and' 5, it will be observed that the cylinderunits 60 are provided with spark plugs 62 at each end thereof with a piston unit 64 being dispose-d therebetween and being reciprocable toward-s and from each of the spark plug units. However, the opposite side walls of the cylinder units ,60 are necessarily provided with longitudinally extending slots 66 therethrcugh in order that a transversely, dispose-d,- piston pin 68 of each'of the pistons may -be reciprocable in these slots and project to the exterior of the cylinder. At
the exterior of the cylinder, the piston pins are connected to pairs of piston rod sections 70 which correspond to the single piston rod sections 22 of the preceding embodiment. The two sections 70 of each piston are bolted to complementary sectionsrof the opposite ;alined piston,
and are connected to the single eccentric mechanism I previously described The operation of thisform of the invention is identical to that previously described except that the cylinders are double-acting in that, charges are taken into and fired successively at opposite ends of each cylinder.
The foregoing is considered aslillustrative'only of the.-
Further, since numerous principles of the invention. I modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction "and operation shown and described, and accordingly all suitable modifications. and
equivalents may be resorted to, falling within the scope least I two longitudinally spaced pairs of horizontal. alined cyl inders and pistons on opposite sides of adrive shaft and with the oppositely alined pistonbeing rigidly connected to a common piston rod whose mid-portionisconnected to said drive shaft, the improvement. comprising apair of eccentric disk-s of different diameters'fiznzdly mounted in longitudinal spaced position uponsaid drive shaft, a bearingsh-ell having an external diameter equ'al u-to tively one on said larger eccentric disk and the other on said smaller eccentric disk and the bearing shell thereon. I, 7 I V a 2. The'combination of claim 1 wherein each pistonrod comprises two sections each'rigidlylconn'ected atone end posed slot, piston pinseach-slidable' in a'slot and secured to a piston, said piston rod being disposedupon the exterior of saidicylinders and secured to the ends of said pistonpin. I
6. In an internal combustion engine having a drive shaft,
pairs of opposed cylinders spaced longitudinally of said drive shaft withwthe cylinders of each pair being axially aligned'in diametrically opposed relation on -opposite sides of said drive shaft,
. 'a' piston sl idably reciprocable in each cylinder,
. a rigid piston rod foreach pair of aligned pistons with the outer ends of said rod being secured to each of said pair ofpistons and maintaining the latter in fixedly spaced relation, "1
an eccentric mechanism for each piston rod detachably I connecting a mid portion ofthe'latter to said drive shaft and converting reciprocationof saidpiston to rotation of said drive shaft, eacheccentric mechanism, comprising aneccentr'ic disk fixed to said "drive shaft and an eccentric chamber in the associated piston rod mid-portion together, with an eccentric; ring mounted in the associated eccentriccharnber and mount-ed upon the associated eccentric disk, 1
a, bearing shell detachably journaled on one of said eccentric rings and detachably journaled upon one of the eccentric disks and eccentricchambers of the I associated eccentric mechanism,
one of the: eccentric disks, eccentric rings and eccentricrhousin-gsof one" of said eccentric mechanism being ofa ditferent sizefrom the corresponding element of the other eccentric mechanisms while the correspondingremaining elements of all of said eccentric mechanism are of the .same size whereby upon removal of said bearing shell all of the piston rod, may be slid axially diet and. onto said drive shaft from one :end thereof.
I 7. The combination of claim 6 wherein said one element of Jdifl ferent size is oneofsaid eccentric disks which is of smaller diameter than the other eccentric disks, for eccentric rings of allof the diife-rent eccentric mechanisms having a common 'external diameter and a common internal diameter.
' References Citedby the Examiner; I I UNITED. STATES PATENI-S I 1,705,638 3/29 Dua'B ose ;1123-56 2,132,595 210 325; Bancroft 123-56 I 2,288,963 7/421 Von Tavel 74- -49 2,310,733 I 2/43 Duke Q 123-56 B.' ,WII,KINSON, -Primqry Examiner.

Claims (1)

1. IN AN INTERNAL COMBUSTION ENGINE HAVING AT LEAST TWO LONGITUDINALLY SPACED PAIRS OF HORIZONTAL ALINED CYLINDERS AND PISTONS ON OPPOSITE SIDES OF A DRIVE SHAFT AND WITH THE OPPOSITELY ALINED PISTON BEING RIGIDLY CONNECTED TO A COMMON PISTON ROD WHOSE MID-PORTION IS CONNECTED TO SAID DRIVE SHAFT, THE IMPROVEMENT COMPRISING A PAIR OF ECCENTRIC DISKS OF DIFFERENT DIAMETERS FIXEDLY MOUNTED IN LONGITUDINAL SPACED POSITION UPON SAID DRIVE SHAFT, A BEARING SHELL HAVING AN EXTERNAL DIAMETER EQUAL TO THAT OF THE LARGER ECCENTRIC DISK DISPOSED UPON THE SMALLER ECCENTRIC DISK, A PAIR OF ECCENTRIC RINGS EACH JOURNALED IN THE MID-PORTION OF A PISTON ROD AND JOURNALED RESPECTIVELY ONE ON SAID LARGER ECCENTRIC DISK AND THE OTHER ON SAID SMALLER ECCENTRIC DISK AND THE BEARING SHELL THEREON.
US316857A 1963-10-17 1963-10-17 Dual piston unit for internal combustion engine Expired - Lifetime US3195420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US316857A US3195420A (en) 1963-10-17 1963-10-17 Dual piston unit for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US316857A US3195420A (en) 1963-10-17 1963-10-17 Dual piston unit for internal combustion engine

Publications (1)

Publication Number Publication Date
US3195420A true US3195420A (en) 1965-07-20

Family

ID=23231002

Family Applications (1)

Application Number Title Priority Date Filing Date
US316857A Expired - Lifetime US3195420A (en) 1963-10-17 1963-10-17 Dual piston unit for internal combustion engine

Country Status (1)

Country Link
US (1) US3195420A (en)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438683A (en) * 1965-02-19 1969-04-15 John B Thomson Trunnion for linear antifriction bearings
US3583247A (en) * 1968-12-18 1971-06-08 Herman L Paul Jr Power actuator for rotary valves
US3977303A (en) * 1972-04-03 1976-08-31 Exxon Research And Engineering Company Engines and compressors
US4019395A (en) * 1975-07-07 1977-04-26 Graco Inc. Piston drive assembly
US4047851A (en) * 1976-09-27 1977-09-13 Bender Machine Works, Inc. Bellows type expansible chamber pump having separate biasing means
US4058783A (en) * 1973-07-09 1977-11-15 Elmeg Elektro-Mechanik Gmbh Rapid action relay
US5287658A (en) * 1991-06-04 1994-02-22 Seva Polishing machine having combined alternating translational and rotational tool motion
US5331925A (en) * 1993-01-04 1994-07-26 Mikhail Tsepenyuk Internal combustion engine
US5445039A (en) * 1994-03-18 1995-08-29 Brackett; Douglas C. Conjugate drive mechanism
US5456159A (en) * 1992-07-31 1995-10-10 Brackett; Douglas C. Motion converter with pinion sector/rack interface
US5494135A (en) * 1993-11-08 1996-02-27 Brackett; Douglas C. Lubrication system for a conjugate drive mechanism
US5503038A (en) * 1994-04-01 1996-04-02 Aquino; Giovanni Free floating multiple eccentric device
US5513541A (en) * 1994-03-18 1996-05-07 Brackett; Douglas C. Conjugate drive mechanism
US5546821A (en) * 1993-11-08 1996-08-20 Brackett; Douglas C. Motion arrester for a conjugate drive mechanism
US5546897A (en) * 1993-11-08 1996-08-20 Brackett; Douglas C. Internal combustion engine with stroke specialized cylinders
US5560327A (en) * 1993-11-08 1996-10-01 Brackett; Douglas C. Internal combustion engine with improved cycle dynamics
EP0829618A1 (en) * 1996-09-12 1998-03-18 Vigh, Andreas, Dipl.-Ing. (FH) Internal combustion interne
US5778835A (en) * 1997-04-18 1998-07-14 Amtec Corporation Internal combustion engine
WO1999024703A1 (en) * 1997-11-07 1999-05-20 Oleg Nijegorodtsev Single-rod pendular engine
US5943987A (en) * 1995-02-14 1999-08-31 Bayerische Motoren Werke Aktiengesellschaft Reciprocating piston engine with adjacent cylinders in the crankshaft direction in an engine case
US5988994A (en) * 1997-10-21 1999-11-23 Global Cooling Manufacturing Company Angularly oscillating, variable displacement compressor
EP0961016A3 (en) * 1998-05-29 2000-09-20 Antonios Parathiras Internal combustion engine
US6684755B2 (en) 2002-01-28 2004-02-03 Bristol Compressors, Inc. Crankshaft, compressor using crankshaft, and method for assembling a compressor including installing crankshaft
WO2010000891A1 (en) * 2008-07-03 2010-01-07 Gomez Celada Jose Carlos Engine with double piston inside horizontal facing cylinders
US8839760B1 (en) 2013-03-20 2014-09-23 Achim H. Hedrich Apparatus for rotating a crankshaft
AT518769B1 (en) * 2016-08-18 2018-01-15 Ecool Advanced Urban Eng Gmbh Internal combustion engine
US11028923B2 (en) * 2015-06-11 2021-06-08 Hamilton Sundstrand Corporation High vibration pneumatic piston assembly made from additive manufacturing
WO2024026550A1 (en) * 2022-08-03 2024-02-08 Carballada Manuel Exposito Free-piston engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1705638A (en) * 1928-01-06 1929-03-19 Bose Milton F Du Internal-combustion engine
US2132595A (en) * 1937-11-17 1938-10-11 Bancroft Charles Displacement means
US2288963A (en) * 1940-08-27 1942-07-07 Tavel Hesper Von Driving connection
US2310733A (en) * 1942-03-25 1943-02-09 Duke Charles Austin Internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1705638A (en) * 1928-01-06 1929-03-19 Bose Milton F Du Internal-combustion engine
US2132595A (en) * 1937-11-17 1938-10-11 Bancroft Charles Displacement means
US2288963A (en) * 1940-08-27 1942-07-07 Tavel Hesper Von Driving connection
US2310733A (en) * 1942-03-25 1943-02-09 Duke Charles Austin Internal combustion engine

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438683A (en) * 1965-02-19 1969-04-15 John B Thomson Trunnion for linear antifriction bearings
US3583247A (en) * 1968-12-18 1971-06-08 Herman L Paul Jr Power actuator for rotary valves
US3977303A (en) * 1972-04-03 1976-08-31 Exxon Research And Engineering Company Engines and compressors
US4058783A (en) * 1973-07-09 1977-11-15 Elmeg Elektro-Mechanik Gmbh Rapid action relay
US4019395A (en) * 1975-07-07 1977-04-26 Graco Inc. Piston drive assembly
US4047851A (en) * 1976-09-27 1977-09-13 Bender Machine Works, Inc. Bellows type expansible chamber pump having separate biasing means
US5287658A (en) * 1991-06-04 1994-02-22 Seva Polishing machine having combined alternating translational and rotational tool motion
US5640881A (en) * 1992-07-31 1997-06-24 Brackett; Douglas C. Motion converter with pinion sector/rack interface
US5456159A (en) * 1992-07-31 1995-10-10 Brackett; Douglas C. Motion converter with pinion sector/rack interface
US5331925A (en) * 1993-01-04 1994-07-26 Mikhail Tsepenyuk Internal combustion engine
US5494135A (en) * 1993-11-08 1996-02-27 Brackett; Douglas C. Lubrication system for a conjugate drive mechanism
US5546897A (en) * 1993-11-08 1996-08-20 Brackett; Douglas C. Internal combustion engine with stroke specialized cylinders
US5560327A (en) * 1993-11-08 1996-10-01 Brackett; Douglas C. Internal combustion engine with improved cycle dynamics
US5546821A (en) * 1993-11-08 1996-08-20 Brackett; Douglas C. Motion arrester for a conjugate drive mechanism
US5575173A (en) * 1994-03-18 1996-11-19 Brackett; Douglas C. Conjugate drive mechanism
US5513541A (en) * 1994-03-18 1996-05-07 Brackett; Douglas C. Conjugate drive mechanism
US5445039A (en) * 1994-03-18 1995-08-29 Brackett; Douglas C. Conjugate drive mechanism
US5503038A (en) * 1994-04-01 1996-04-02 Aquino; Giovanni Free floating multiple eccentric device
US5943987A (en) * 1995-02-14 1999-08-31 Bayerische Motoren Werke Aktiengesellschaft Reciprocating piston engine with adjacent cylinders in the crankshaft direction in an engine case
EP0829618A1 (en) * 1996-09-12 1998-03-18 Vigh, Andreas, Dipl.-Ing. (FH) Internal combustion interne
US5778835A (en) * 1997-04-18 1998-07-14 Amtec Corporation Internal combustion engine
US5988994A (en) * 1997-10-21 1999-11-23 Global Cooling Manufacturing Company Angularly oscillating, variable displacement compressor
WO1999024703A1 (en) * 1997-11-07 1999-05-20 Oleg Nijegorodtsev Single-rod pendular engine
EP0961016A3 (en) * 1998-05-29 2000-09-20 Antonios Parathiras Internal combustion engine
US6684755B2 (en) 2002-01-28 2004-02-03 Bristol Compressors, Inc. Crankshaft, compressor using crankshaft, and method for assembling a compressor including installing crankshaft
WO2010000891A1 (en) * 2008-07-03 2010-01-07 Gomez Celada Jose Carlos Engine with double piston inside horizontal facing cylinders
ES2359196A1 (en) * 2008-07-03 2011-05-19 Jose Carlos Gomez Celada Engine with double piston inside horizontal facing cylinders
US8839760B1 (en) 2013-03-20 2014-09-23 Achim H. Hedrich Apparatus for rotating a crankshaft
US11028923B2 (en) * 2015-06-11 2021-06-08 Hamilton Sundstrand Corporation High vibration pneumatic piston assembly made from additive manufacturing
AT518769B1 (en) * 2016-08-18 2018-01-15 Ecool Advanced Urban Eng Gmbh Internal combustion engine
AT518769A4 (en) * 2016-08-18 2018-01-15 Ecool Advanced Urban Eng Gmbh Internal combustion engine
WO2024026550A1 (en) * 2022-08-03 2024-02-08 Carballada Manuel Exposito Free-piston engine

Similar Documents

Publication Publication Date Title
US3195420A (en) Dual piston unit for internal combustion engine
US4090478A (en) Multiple cylinder sinusoidal engine
US2401466A (en) Internal-combustion engine
US2263561A (en) Variable compression ratio barreltype engine
US3572209A (en) Radial engine
US2302995A (en) Wobble plate structure
US3274982A (en) Two-cycle two-cylinder internal combustion engine
US3520285A (en) Reciprocating piston engine with rhombic drive and even power intervals
US4414927A (en) Two stroke oscillating piston engine
US3396709A (en) Roto-piston engine
US3386425A (en) Internal combustion engines
US2413589A (en) Rotary internal-combustion engine
US2050603A (en) Engine
US2203648A (en) Internal combustion engine
US2512265A (en) Internal-combustion engine
US2268532A (en) Internal combustion engine
US3386424A (en) Internal combustion engines
US2413590A (en) Arcuate piston
US1151568A (en) Internal-combustion engine.
US2450912A (en) Internal-combustion motor with pistons symmetrically arranged about cams on the drive shaft
US2227853A (en) Multiple-piston engine
US1191827A (en) Internal-combustion engine.
US1492215A (en) Engine
US2612878A (en) Rotary internal-combustion engine
US1835138A (en) Internal-combustion engine