US3570465A - Recoil starter and lubricating pump drive for outboard motor - Google Patents

Recoil starter and lubricating pump drive for outboard motor Download PDF

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Publication number
US3570465A
US3570465A US858286A US3570465DA US3570465A US 3570465 A US3570465 A US 3570465A US 858286 A US858286 A US 858286A US 3570465D A US3570465D A US 3570465DA US 3570465 A US3570465 A US 3570465A
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United States
Prior art keywords
engine
driven
lubricating pump
outboard motor
crankshaft
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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
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US858286A
Inventor
Yutaka Masaoka
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Yamaha Motor Co Ltd
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Yamaha Motor Co Ltd
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Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/001—Arrangements, apparatus and methods for handling fluids used in outboard drives
    • B63H20/002—Arrangements, apparatus and methods for handling fluids used in outboard drives for handling lubrication liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • 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
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for outboard marine engines
    • 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
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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
    • F02B75/007—Other engines having vertical crankshafts

Definitions

  • FIG. 1 is a fractional longitudinal section of a power head according to an embodiment of the invention
  • FIG. 2 is a plan view of a support device
  • FIG. 3 is a fractional sectional view on line III-III of FIG. 2.
  • an engine is of water-cooled 2-cycle internal combustion type, the housing 1 of which supports a vertical crankshaft 2 rotatably and supports the stator 3a of a flywheel magneto 3 at the upper part thereof in concentric relationship with the crankshaft 2 through a stator plate 4.
  • a propeller (not shown)
  • the rotor 3b of the flywheel magneto 3 is fitted to the upper end of the crankshaft 2, the lower end of which is connected to a propeller (not shown), is fitted the rotor 3b of the flywheel magneto 3 through a fitting member 5.
  • the known recoil starter 6 is positioned above the rotor 3b and fixed to the engine housing 1 by means of a support device 7 having three support pillars 7a.
  • the driven drum 8 of the starter 6 is coaxially fixed by bolts 9 to the upper side of the rotor 3b of the flywheel magneto 3 with a driving pulley l interposed between said drum 8 and the .flange a of the fitting member 5.
  • the driving pulley and driven drum of the starter are fixedly superposed.
  • the support device 7 has a support member 7b integrally formed therewith.
  • a lubricating pump 11 To said support member 7b is fitted a lubricating pump 11 in such a manner that the driven shaft 12 of the lubricating pump 11 is disposed parallel with the crankshaft 2 and the end of the shaft 12 is positioned at the same level as the driving pulley 10. To the end of the shaft 12 is fixed a driven pulley l3. Across the driving and driven pulleys and I3 is stretched a transmission belt 14. Thus both pulleys 10 and 13 and belt 14 constitute a transmission gear mechanism-l5 for transmitting the motive force of the engine to the pump.
  • the driven shaft 12 of the lubricating pump 11 rotates, and the lubricating pump 11 sucks and delivers the lubricant to be fed to the Z-cycle internal combustion engine at the intake manifold thereof.
  • the driven pulley 13 involves a'cireular bore 13a for fitting the driven shaft 12 thereinto, and a transverse grove 13b formed on the one side thereof in a manner to extend perpendicular to the axis of said driven pulley 13.
  • the driven shaft 12 has a cross pin l2a detachably fitted into said transverse groove, said pin penetrating the body of said shaft 12, and a retaining ring 12b preventing the driven pulleylil to be moved away from said cross pin.
  • the aforementioned power mechanism is fully enclosed by a detachable cowling 16 at least at the upper part and periphery. Accordingly, though there may be brought in water sprays from below the cowling 16 during the travel of a boat, the aforesaid arrangement minimizes the possibility of water drops and scales being carried beyond the engine housing 1 and flywheel magneto 3 up to the transmission gear mechanism 15 of the pump to be deposited thereon.
  • An outboard motor comprising an engine for driving a propeller, a flywheel magneto having a rotor fitted to the upper end of a vertical crankshaft of the engine, a recoil starter positioned above the flywheel magneto and fixed to the housing of the engine in concentric relationship with the crankshaft by means of a support device so as to rotate the crankshaft when the engine is started, a lubricating pump fixed to the support device of the recoil starter, the driven shaft of the lubricating pump being disposed parallel with the crankshaft, a transmission gear mechanism for connecting the driven shaft of the lubricating pump with the upper part of the rotor of the flywheel magneto so as to rotate therewith, and a cowling for enclosing said engine with the associated mechanism.
  • the outboard motor according to claim 1 wherein the transmission gear mechanism consists of a driving pulley fixed to the upper side of the rotor of the flywheel magneto, a driven pulley fitted to the driven shaft of the lubricating pump and a transmission belt stretched across these pulleys.
  • the driven pulley involves a circular bore for fitting the driven shaft thereinto, and a transverse groove formed on the one side thereof in a manner to extend perpendicular to the axis of said driven pulley, and the driven shaft has a cross pin detachably fitted into said transverse groove, said pin penetrating the body of said shaft, and a retaining ring for preventing the driven pulley to be moved away from said cross pin.

Abstract

An outboard motor wherein the fitting arrangement of a lubricating pump for lubricating an internal combustion engine is so designed as to be simple and compact, and a transmission gear mechanism for allowing said pump to be driven by the power of an engine is saved from the deposition of water drops or water scales by said arrangement.

Description

United States Patent RECOIL STARTER AND LUBRICATING PUMP DRIVE FOR OUTBOARD MOTOR 3 Claims, 3 Drawing Figs.
U.S. Cl 123/185,
Int. Cl F02n 3/02, FOlm l/02, F01m 3/00 Field of Search 123/185 (A), (B), (B1), 73(A3), 179(0); 115/17, 18; 184/6 (Y), (Inquired) [56] References Cited UNITED STATES PATENTS 1,966,381 7/1934 Doman et al. 123/1 79(0)UX 2,323,535 7/1943 Gorden 123/185(Bl) 2,346,148 4/1944 Bosma 184/6(Y) 2,351,050 6/1944 Karey 184/6X 2,630,881 3/1953 Bosma 184/6(Y) 2,723,655 11/1955 Shimanckas 123/185(B) 3,137,285 6/1964 Ausserbauer 123/73(A3)X 3,295,490 1/1967 Hiatt 115/18X FOREIGN PATENTS 747,151 3/1956 Great Britain l23/185(B1) Primary Examiner-Al Lawrence Smith AttorneyGeorge B. Oujevolk Patented March 16, 1971 3,570,465
2 Sheets-Sheet l INVENTOR.
BY day as 426, 21 "EON-'- RECOIL STARTER AND LUBRICATING PUMP DRIVE FOR OUTBOARD MOTOR SUMMARY OF THE INVENTION with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a fractional longitudinal section of a power head according to an embodiment of the invention;
FIG. 2 is a plan view of a support device; and
FIG. 3 is a fractional sectional view on line III-III of FIG. 2.
DETAILED DESCRIPTION OF THE INVENTION Referring to FIG. 1, an engine is of water-cooled 2-cycle internal combustion type, the housing 1 of which supports a vertical crankshaft 2 rotatably and supports the stator 3a of a flywheel magneto 3 at the upper part thereof in concentric relationship with the crankshaft 2 through a stator plate 4. To the upper end of the crankshaft 2, the lower end of which is connected to a propeller (not shown), is fitted the rotor 3b of the flywheel magneto 3 through a fitting member 5.
On the other hand, the known recoil starter 6 is positioned above the rotor 3b and fixed to the engine housing 1 by means of a support device 7 having three support pillars 7a. The driven drum 8 of the starter 6 is coaxially fixed by bolts 9 to the upper side of the rotor 3b of the flywheel magneto 3 with a driving pulley l interposed between said drum 8 and the .flange a of the fitting member 5. The driving pulley and driven drum of the starter are fixedly superposed. Further, as shown in FIGS. 2 and 3, the support device 7 has a support member 7b integrally formed therewith. To said support member 7b is fitted a lubricating pump 11 in such a manner that the driven shaft 12 of the lubricating pump 11 is disposed parallel with the crankshaft 2 and the end of the shaft 12 is positioned at the same level as the driving pulley 10. To the end of the shaft 12 is fixed a driven pulley l3. Across the driving and driven pulleys and I3 is stretched a transmission belt 14. Thus both pulleys 10 and 13 and belt 14 constitute a transmission gear mechanism-l5 for transmitting the motive force of the engine to the pump.
Thus, as the engine is at work, the driven shaft 12 of the lubricating pump 11 rotates, and the lubricating pump 11 sucks and delivers the lubricant to be fed to the Z-cycle internal combustion engine at the intake manifold thereof.
The driven pulley 13 involves a'cireular bore 13a for fitting the driven shaft 12 thereinto, and a transverse grove 13b formed on the one side thereof in a manner to extend perpendicular to the axis of said driven pulley 13. The driven shaft 12 has a cross pin l2a detachably fitted into said transverse groove, said pin penetrating the body of said shaft 12, and a retaining ring 12b preventing the driven pulleylil to be moved away from said cross pin.
The aforementioned power mechanism is fully enclosed by a detachable cowling 16 at least at the upper part and periphery. Accordingly, though there may be brought in water sprays from below the cowling 16 during the travel of a boat, the aforesaid arrangement minimizes the possibility of water drops and scales being carried beyond the engine housing 1 and flywheel magneto 3 up to the transmission gear mechanism 15 of the pump to be deposited thereon.
I claim: 1. An outboard motor comprising an engine for driving a propeller, a flywheel magneto having a rotor fitted to the upper end of a vertical crankshaft of the engine, a recoil starter positioned above the flywheel magneto and fixed to the housing of the engine in concentric relationship with the crankshaft by means of a support device so as to rotate the crankshaft when the engine is started, a lubricating pump fixed to the support device of the recoil starter, the driven shaft of the lubricating pump being disposed parallel with the crankshaft, a transmission gear mechanism for connecting the driven shaft of the lubricating pump with the upper part of the rotor of the flywheel magneto so as to rotate therewith, and a cowling for enclosing said engine with the associated mechanism.
2. The outboard motor according to claim 1 wherein the transmission gear mechanism consists of a driving pulley fixed to the upper side of the rotor of the flywheel magneto, a driven pulley fitted to the driven shaft of the lubricating pump and a transmission belt stretched across these pulleys.
3. The outboard motor according to claim 2 wherein the drivingpulley and driven drum of the starter are fixedly superposed, the driven pulley involves a circular bore for fitting the driven shaft thereinto, and a transverse groove formed on the one side thereof in a manner to extend perpendicular to the axis of said driven pulley, and the driven shaft has a cross pin detachably fitted into said transverse groove, said pin penetrating the body of said shaft, and a retaining ring for preventing the driven pulley to be moved away from said cross pin.

Claims (3)

1. An outboard motor comprising an engine for driving a propeller, a flywheel magneto having a rotor fitted to the upper end of a vertical crankshaft of the engine, a recoil starter positioned above the flywheel magneto and fixed to the housing of the engine in concentric relationship with the crankshaft by means of a support device so as to rotate the crankshaft when the engine is started, a lubricating pump fixed to the support device of the recoil starter, the driven shaft of the lubricating pump being disposed parallel with the crankshaft, a transmission gear mechanism for connecting the driven shaft of the lubricating pump with the upper part of the rotor of the flywheel magneto so as to rotate therewith, and a cowling for enclosing said engine with the associated mechanism.
2. The outboard motor according to claim 1 wherein the transmission gear mechanism consists of a driving pulley fixed to the upper side of the rotor of the flywheel magneto, a driven pulley fitted to the driven shaft of the lubricating pump and a transmission belt stretched across these pulleys.
3. The outboard motor according to claim 2 wherein the driving pulley and driven drum of the starter are fixedly superposed, the driven pulley involves a circular bore for fitting the driven shaft thereinto, and a transverse groove formed on the one side thereof in a manner to extend perpendicular to the axis of said driven pulley, and the driven shaft has a cross pin detachably fitted into said transverse groove, said pin penetrating the body of said shaft, and a retaining ring for preventing the driven pulley to be moved away from said cross pin.
US858286A 1968-09-19 1969-09-16 Recoil starter and lubricating pump drive for outboard motor Expired - Lifetime US3570465A (en)

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JP8097968 1968-09-19

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857378A (en) * 1972-08-09 1974-12-31 Yamaha Motor Co Ltd Oil pump driving arrangement for a separate engine lubricating system of a small-sized internal combustion engine
US4493661A (en) * 1980-07-12 1985-01-15 Yamaha Hatsudoki Kabushiki Kaisha Outboard engine
US4533331A (en) * 1982-01-11 1985-08-06 Outboard Marine Corporation Vent and drain assembly for marine propulsion device
US4689025A (en) * 1985-07-03 1987-08-25 Outboard Marine Corporation Power steering system
US4695261A (en) * 1985-07-03 1987-09-22 Outboard Marine Corporation Marine propulsion engine voltage generator arrangement
US4721485A (en) * 1983-08-24 1988-01-26 Sanshin Kogyo Kabushiki Kaisha Flywheel magneto cover for marine propeller engine
US4749374A (en) * 1985-07-03 1988-06-07 Outboard Marine Corporation Marine propulsion device power steering system
US4846307A (en) * 1986-10-15 1989-07-11 Kawasaki Jukogyo Kabushiki Kaisha Separate lubricating system of two cycle engine
US4955836A (en) * 1981-08-25 1990-09-11 Sanshin Kogyo Kabushiki Kaisha Outboard motor
EP1069292A2 (en) * 1999-07-16 2001-01-17 Sanshin Kogyo Kabushiki Kaisha Outboard motor
US20140238335A1 (en) * 2013-02-27 2014-08-28 Ford Global Technologies, Llc Oil pump drive

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB747151A (en) *
US1966381A (en) * 1930-10-27 1934-07-10 William H Anderson Outboard motor
US2323535A (en) * 1941-07-07 1943-07-06 Mall Tool Company Engine starter
US2346148A (en) * 1940-08-01 1944-04-11 Hart Carter Co Outboard motor
US2351050A (en) * 1939-04-11 1944-06-13 Bendix Aviat Corp Outboard motor
US2630881A (en) * 1949-04-15 1953-03-10 Hart Carter Co Internal-combustion engine construction
US2723655A (en) * 1953-01-08 1955-11-15 Outboard Marine & Mfg Co Speed-controlled starter lock for engines
US3137285A (en) * 1962-05-16 1964-06-16 Auto Union Gmbh System for supplying oil to internal combustion engines
US3295490A (en) * 1963-05-06 1967-01-03 Wilbur L Hiatt Propulsion means

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB747151A (en) *
US1966381A (en) * 1930-10-27 1934-07-10 William H Anderson Outboard motor
US2351050A (en) * 1939-04-11 1944-06-13 Bendix Aviat Corp Outboard motor
US2346148A (en) * 1940-08-01 1944-04-11 Hart Carter Co Outboard motor
US2323535A (en) * 1941-07-07 1943-07-06 Mall Tool Company Engine starter
US2630881A (en) * 1949-04-15 1953-03-10 Hart Carter Co Internal-combustion engine construction
US2723655A (en) * 1953-01-08 1955-11-15 Outboard Marine & Mfg Co Speed-controlled starter lock for engines
US3137285A (en) * 1962-05-16 1964-06-16 Auto Union Gmbh System for supplying oil to internal combustion engines
US3295490A (en) * 1963-05-06 1967-01-03 Wilbur L Hiatt Propulsion means

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857378A (en) * 1972-08-09 1974-12-31 Yamaha Motor Co Ltd Oil pump driving arrangement for a separate engine lubricating system of a small-sized internal combustion engine
US4493661A (en) * 1980-07-12 1985-01-15 Yamaha Hatsudoki Kabushiki Kaisha Outboard engine
USRE32620E (en) * 1980-07-12 1988-03-08 Sanshin Kogyo Kabushiki Kaisha Lubricating system for an outboard engine
US4955836A (en) * 1981-08-25 1990-09-11 Sanshin Kogyo Kabushiki Kaisha Outboard motor
US4533331A (en) * 1982-01-11 1985-08-06 Outboard Marine Corporation Vent and drain assembly for marine propulsion device
US4721485A (en) * 1983-08-24 1988-01-26 Sanshin Kogyo Kabushiki Kaisha Flywheel magneto cover for marine propeller engine
AU624468B2 (en) * 1985-07-03 1992-06-11 Outboard Marine Corporation Marine propulsion device
US4689025A (en) * 1985-07-03 1987-08-25 Outboard Marine Corporation Power steering system
US4695261A (en) * 1985-07-03 1987-09-22 Outboard Marine Corporation Marine propulsion engine voltage generator arrangement
US4749374A (en) * 1985-07-03 1988-06-07 Outboard Marine Corporation Marine propulsion device power steering system
US4846307A (en) * 1986-10-15 1989-07-11 Kawasaki Jukogyo Kabushiki Kaisha Separate lubricating system of two cycle engine
EP1069292A2 (en) * 1999-07-16 2001-01-17 Sanshin Kogyo Kabushiki Kaisha Outboard motor
EP1069292A3 (en) * 1999-07-16 2002-02-13 Sanshin Kogyo Kabushiki Kaisha Outboard motor
US6500036B1 (en) 1999-07-16 2002-12-31 Sanshin Kogyo Kabushiki Kaisha Outboard motor power head
US20140238335A1 (en) * 2013-02-27 2014-08-28 Ford Global Technologies, Llc Oil pump drive
US9109477B2 (en) * 2013-02-27 2015-08-18 Ford Global Technologies, Llc Oil pump drive

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Publication number Publication date
NL154301B (en) 1977-08-15
NL6914128A (en) 1970-03-23

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