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US1360110A - Engine construction - Google Patents

Engine construction Download PDF

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Publication number
US1360110A
US1360110A US1360110DA US1360110A US 1360110 A US1360110 A US 1360110A US 1360110D A US1360110D A US 1360110DA US 1360110 A US1360110 A US 1360110A
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United States
Prior art keywords
engine
shaft
gear
engine construction
crank case
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Expired - Lifetime
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • 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
    • Y10T74/19—Gearing
    • Y10T74/19219—Interchangeably locked
    • Y10T74/19251—Control mechanism
    • Y10T74/19279—Cam operated

Definitions

  • MPLICAHON FILED sum a9. 1911 1 ,360, 1 10, Patented Nov. 23, 1920 3 SHEETS-SHEET 2.
  • My present invention relates to improvements in internal combustion engine structure, particularly that type of engine adapted for use on motorcycles and similar light vehicles.
  • the principalohjcct of the invention is to produce a simply constructed and a light internal combustion engine for motorcycles, which will be extremely compact. lVith this object in view a radical departure in the appearance ofsuch engines has been made, the opposed cylinder type being modified and "eqnipped with improvements to allow its eingused on motorcycle frames.
  • a further object of the invention is to provide an improved arrangement for actuating the valves of the opposed cylinders of the motor.
  • a still further object is to rovide an improved closure cap for the filling opening of the crank case.
  • Figure 1 represents a substa n 1 lly vertical transverse sectional view tlirough a motorcycle power plant constructed in accordance with my invention.
  • Fig. 2 is a vertical sectiontaken substantially on the line 2-2 of Fig. 1. r
  • Fig. 3 is a similar view on the plane of the line 33 of Fig. 1, and
  • Fig. 4 is a detail elevational view showing the means for holding the shiftahle gear of the selctive speed transmission mechanism in any one of its four positions.
  • crank case 1 the lower end of the crank case 1 15 disposed a crank shaft 5 to which the pistons are connected, the straight portions of said crank shaft being journally mounted in the side Walls 6 and 7 of said case 1. Both ends of said crankshaft extend outwardly of the crank case, one being provided with a fly wheel 8 and the other with a spur gear 9.
  • the gear 9 is disposed in engagement with the outer side of the Wall 6, the latter, together with a crank case cover 10, forming a gear case to house the train of 'gears of which the gear 9 forms a unit,and the clutch 11.
  • One of the units of said train of gears operates an oiler 12, which is constructed in accordance with Letters Patent No. 1,254,799 granted to me on January 29.
  • the clutch 11 forms a part of a selectiv speed transmission mechanism and is mounted upon one end of a drive-shaft 13, which is journally mounted in bearings in the walls 6 and 7 of the crank case adjacent the top thereof, said shaft being extended parallel to the crank shaft and therefore transversely of the crank case.
  • a sprocket wheel 14 connected with the end of the drive shaft 13 on the opposite side of the crank case from the clutch 11 is adapted to have a sprocket chain trained thereover and around the sprocket on the rear wheel of a motorcycle upon vvhich the.
  • the clutch 11 is designed to disengage a drive shaft 13 fromthe c'rank shaft 5.to alloy a shiftable gear 15 to be meshed with any one of three othengears so as to change the speed ratio between the rank shaft and the. motorcycle drive wheel, or moved into a-

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

Description

W. S HARLEY. iNGINE CUNSTHUCHON. MPLELATIGN mm SEPI. 19. 19:7
3 SHEETSSHEET 1.
Patented Nov. 23, 1920.
{r b H c W. S, HARtEY ENGINE CONSTRUCTION.
MPLICAHON FILED sum a9. 1911 1 ,360, 1 10, Patented Nov. 23, 1920 3 SHEETS-SHEET 2.
RE/140M (m? w. s. HARLEY ENGINE CUNSMUG'HON. AiPHCANON FILED SEPT 19. 191 I. 1,360, 1 1() atented Nov. 23, 1920.
3 SHEETS-SHEET 3.
companion applications Serial Nos. 192,116,
UNITED STATES PATENT OFFlCE.
WILLIAM S. HARLEY, OF MILWAUKEE, WISCONSIN. ASSIGNOB TO HARLEY-DAVIDSON MOTOR 60.. 0F MILWAUKEE, WISCONSIN.
ENGINE CONSTRUCTION.
Specification 01' Letters Patent.
Patented Nov. 23, 1920.
Application filed hepcember 19, 1917. Serial No. 192,117.
To all whom it may concern lie it known that 1. human S. HARLEY, a citizen of the l nited States. and resident of Milwaukee. in the county of Milwaukee and State of Wisconsin. have invented certain new and useful Improvements in Enginc (onstructiom and I do hcrebyvdeclare that the following is a full. clear, and exact description thereof.
My present invention relates to improvements in internal combustion engine structure, particularly that type of engine adapted for use on motorcycles and similar light vehicles.
The principalohjcct of the invention is to produce a simply constructed and a light internal combustion engine for motorcycles, which will be extremely compact. lVith this object in view a radical departure in the appearance ofsuch engines has been made, the opposed cylinder type being modified and "eqnipped with improvements to allow its eingused on motorcycle frames.
In attaining a compact and li ht engine the usual crank case has been modified to allow the selective gear transmission mechanism to be mounted therein.
A further object of the invention is to provide an improved arrangement for actu ating the valves of the opposed cylinders of the motor.
A still further object is to rovide an improved closure cap for the filling opening of the crank case.
W'ith these and other objects in view. the invention resides in the novel features of construction. combination and arrangement of parts, which will be hereinafter more particularly claimed and' shown in the drawing W erein: t
Figure 1 represents a substa n 1 lly vertical transverse sectional view tlirough a motorcycle power plant constructed in accordance with my invention.
Fig. 2 is a vertical sectiontaken substantially on the line 2-2 of Fig. 1. r
' Fig. 3 is a similar view on the plane of the line 33 of Fig. 1, and
Fig. 4 is a detail elevational view showing the means for holding the shiftahle gear of the selctive speed transmission mechanism in any one of its four positions.
Inasmuch as several of the featuresillustrated in'the drawings of the present invention form the subject matter of co-pending mounted.
site side wall substantially intermediate the ends, these openings receiving' the inner ends of horizontally positioned opposed engine 0 linders 3 and 4 in which pistons (not siown) are designed to reciprocate, and means for translating the reciprocativc mo tion of said pistons to the rear wheel of a motorcycle. 11 the lower end of the crank case 1 15 disposed a crank shaft 5 to which the pistons are connected, the straight portions of said crank shaft being journally mounted in the side Walls 6 and 7 of said case 1. Both ends of said crankshaft extend outwardly of the crank case, one being provided with a fly wheel 8 and the other with a spur gear 9.
The gear 9 is disposed in engagement with the outer side of the Wall 6, the latter, together with a crank case cover 10, forming a gear case to house the train of 'gears of which the gear 9 forms a unit,and the clutch 11. One of the units of said train of gears operates an oiler 12, which is constructed in accordance with Letters Patent No. 1,254,799 granted to me on January 29.
The clutch 11 forms a part of a selectiv speed transmission mechanism and is mounted upon one end of a drive-shaft 13, which is journally mounted in bearings in the walls 6 and 7 of the crank case adjacent the top thereof, said shaft being extended parallel to the crank shaft and therefore transversely of the crank case. A sprocket wheel 14 connected with the end of the drive shaft 13 on the opposite side of the crank case from the clutch 11 is adapted to have a sprocket chain trained thereover and around the sprocket on the rear wheel of a motorcycle upon vvhich the. power plate is As inall transmission mechanism, the clutch 11 is designed to disengage a drive shaft 13 fromthe c'rank shaft 5.to alloy a shiftable gear 15 to be meshed with any one of three othengears so as to change the speed ratio between the rank shaft and the. motorcycle drive wheel, or moved into a-
US1360110D Engine construction Expired - Lifetime US1360110A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536960A (en) * 1946-12-13 1951-01-02 Adrienne M Sherwood Multipurpose internal-combustion engine
US20030209220A1 (en) * 2002-03-19 2003-11-13 Atsuo Hojyo Engine casing
US20100108422A1 (en) * 2008-10-30 2010-05-06 Yamaha Hatsudoki Kabushiki Kaisha Engine unit, and motorcycle equipped therewith

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536960A (en) * 1946-12-13 1951-01-02 Adrienne M Sherwood Multipurpose internal-combustion engine
US20030209220A1 (en) * 2002-03-19 2003-11-13 Atsuo Hojyo Engine casing
US6962096B2 (en) * 2002-03-19 2005-11-08 Honda Giken Kogyo Kabushiki Kaisha Engine casing
US20100108422A1 (en) * 2008-10-30 2010-05-06 Yamaha Hatsudoki Kabushiki Kaisha Engine unit, and motorcycle equipped therewith
US8567276B2 (en) * 2008-10-30 2013-10-29 Yamaha Hatsudoki Kabushiki Kaisha Engine unit, and motorcycle equipped therewith

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