US3428034A - Constant mesh starter - Google Patents
Constant mesh starter Download PDFInfo
- Publication number
- US3428034A US3428034A US609891A US3428034DA US3428034A US 3428034 A US3428034 A US 3428034A US 609891 A US609891 A US 609891A US 3428034D A US3428034D A US 3428034DA US 3428034 A US3428034 A US 3428034A
- Authority
- US
- United States
- Prior art keywords
- ring gear
- hub
- crankshaft
- gear
- casing
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/006—Assembling or mounting of starting devices
-
- 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
- F01L1/02—Valve drive
- F01L1/022—Chain drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
- F02N15/023—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the overrunning type
-
- 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
- Y10T74/13—Machine starters
-
- 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
- Y10T74/13—Machine starters
- Y10T74/131—Automatic
Definitions
- CONSTANT MESH STARTER Filed Jan. l?, 1967 sheet -3 ors United States Patent O 3,428,034 CONSTANT MESH STARTER James E. MacAfee, Troy, Robert L. Davis, Birmingham,
- the starter mechanism of the invention is designed for use with a motor vehicle engine of the type including a crankshaft.
- the starter mechanism comprises a ring gear mounted concentrically around the engine crankshaft and connected to the crankshaft by an overrunning clutch, and a pinion gear secured to the output shaft of an electric motor and maintained in constant meshing engagement with the ring gear.
- the ring gear is mounted forwardly of the engine block on a forward extension of the crankshaft with the output shaft of the electric starter motor positioned at right angles to the crankshaft axis to establish a constant mesh, right angle gear connection between the ring gear and the pinion.
- a casing surrounds the ring gear and a spring is positioned between the casing and the side of the ring gear opposite the ring gear teeth to bias a bearing surface defined on the toothed side of the ring gear against a bearing surface defined on the casing.
- FIG. 1 is a schematic view of a motor vehicle ernbodying a starter mechanism according to the invention
- IFIG, 2 is a longitudinal cross-sectional view of the starter mechanism of the invention
- FIG. 3 is a fragmentary cross-sectional IView of the starter mechanism of FIG. 2 taken on line 3-3 of FIG. 2, FIG. 2 in turn being taken on line 2-2 of FIG. 3;
- FIG. 4 is a fragmentary cross-sectional view taken on line 4-4 of FIG. 2;
- FIG. 5 is a fragmentary cross-sectional View taken on line 5 5 of FIG. 3.
- the starter mechanism of the invention is adapted for use with a motor vehicle of the type seen schematically in FIG. 1 and including front wheels 10, an internal combustion engine 11, transmission 12, drive shaft 14, differential 187 rear axles 20, and rear wheels 22.
- the starter mechanism of the invention identied generally 3,428,034 Patented Feb. V18, 1969 ice at 23, is shown schematically in FIG. 1 and in detail in lFIGS. 2-5.
- starter mechanism 23 is secured to the forward wall 24 of the block 26 of internal combustion engine 11.
- Internal combustion engine 11 has a crankshaft 28 journaled in block 26 and projecting at the rear of the block for connection in known manner to transmission 12.
- Crankshaft 28 projects at its forward end through forward wall 24 of block 26 to provide a forward crankshaft extension 28a.
- a timing sprocket 30 and a hub 32 are press fitted on crankshaft extension 28a and maintained in axial alignment by a common key y34.
- a ring gear 36V extends concentrically around hub 32 and is connected to hub 32 by an overrunning or one-way clutch C, best seen in FIG. 4.
- Overrunning clutch C is provided by a plurality of pockets 38 defined by cut-outs at the inner periphery of ring gear 36 and a roller 40 in each of pockets 38 rollably engaging the outer periphery 32a of hub 32 and the radially outer wall 38a of the pocket.
- Outer wall 38a of each pocket tapers outwardly away from an arc centered on the central axis of hub 32 so that the rollers 40 bind up between hub 32 and ring gear 36 in response to counterclockwise (as viewed in FIG.
- Ring gear 36 may comprise, for example, a Spiroid gear as supplied by Spiroid Division of Illinois Tool Works, Chicago, Ill.
- Casing 44 includes an arcuate bottom wall portion 44a, a conical annular flange portion 44b locally thickened at circumferentially spaced locations 44C to provide threaded bolt holes 44d, a chain housing portion 44e formed as an upward extension of arcuate bottom wall portion 44a and covering a timing chain 46 driven at its lower end by crankshaft timing sprocket 30 and driving at its upper end a camshaft timing sprocket (not shown), and a trough portion 44f angled rearwardly and upwardly from ange portion 44b and passing between the two strands of timing chain 46.
- a stamped cover 48 is clamped to the forward end of casing 44 by a plurality of circumferentially spaced bolts 49 threaded into bolt holes 44d in locally thickened portions 44e of the casing.
- Cover 48 includes a central hub portion 48a terminating in a downturned flange 44b defining a central opening 44e passing the forward end of hub 32.
- An elastomer sealing ring 50 is clamped against flange 44b by an angle member 52; ring 50 sealingly engages the periphery of hub 32.
- a bolt 54 threaded into a tapped bore 56 in the free end of crankshaft extension 28a coacts with a washer 57 to assist in locating the various parts of the starter mechanism during assembly operations.
- An annular spring member 58 is positioned between an annular surface 36a defined on the right hand face of ring member 36 (as Viewed in FIG. 2) and a reaction surface 48d defined by an annular wall portion of cover 48.
- Spring member 58 as best seen in FIGS. 3 and 5, comprises a central flat ring portion 58a and a plurality of spring finger portions 58b joined to ring portion 58a by neck portions 58C.
- spring fingers 58b press resiliently against cover surface 48d to press neck portions 58C against annular surface 36a and thereby press an annular bearing surface 36d on the gear tooth side of ring member 36 against an annular bearing surface 44g defined by casing 44.
- Ring portion 58a of spring member 58 acts as a retainer to prevent axial displacement of rollers 40 out of pockets 38.
- casing 44 includes a bracket portion 44h formed as a lateral extension of the main body portion of the casing.
- Casing portion 44h includes thickened portions 44i defining threaded bores 44j.
- An electric starter motor 60 of known form is secured to casing portion 44h by bolts 62 threaded into threaded bores 44k.
- the output shaft 64 (FIG. 4) of motor 60 extends at right angles to the axis of crankshaft 28 and passes at its free end through a suitable opening in the casing 44 to dispose a screw type pinion gear 66 carried on the free end of the output shaft in meshing engagement with the gear teeth 43 on ring gear 36.
- Pinion 66 may comprise, for example, a Spiroid pinion as supplied by Spiroid Division of Illinois Tool Works of Chicago, Ill.
- Casing 44 is locally deformed at 44k to accommodate pinion 66.
- a multi-sheave pulley 68 is clamped to the forward end of hub 32 by a plurality of bolts 70 threaded into suitable bores in hub 32.
- Pulley 68 includes a hub portion 68a and a sheave portion 68b defining a plurality of sheaves each receiving a separate accessory drive belt 70.
- An inertia ring 72 is carried on the hub portion 68a of pulley 68 with an elastomer ring member 74 positioned concentrically between hub portion 68a and inertia ring 72.
- Pinion gear 66 and ring gear 36 remain in constant meshing relationship.
- motor 60 is energized to rotate output shaft 64 and thereby pinion gear 66.
- Pinion gear 66 in turn drives ring gear 36 with a screwing action and ring gear 36 drives hub 32a through locked up rollers 40 of overrunning clutch C.
- starter motor 60 is de-encrgized and hub 32 overruns ring gear 36 through the now freely rotating rollers 40.
- lubricating oil supplied in known manner to timing chain 46 drips off of that chain and is caught in trough 44f; the lubricant thus collected in trough 44f Hows down the trough and through an opening 44L in casing wall 44h, whereafter it ows circumferentially around ring gear 36 to the lower peripheral portion of that gear where it is deposited in a trough 76 formed between the lower portion of casing 44 and the lower portion of cover 48.
- the lubricant deposited in trough 76 builds up within the trough to the level of lip 44L on casing 44, whereafter the lubricant overflows lip 44L to maintain the lubricant level at the 75 level of the lip,
- the lubricant within trough 76 functions to lubricate the geared connection between pinion 66 and ring gear 36; it also serves to lubricate the rolling engagement of rollers 40 on hub 32 and ring gear 36; it further functions during overrunning action of hub 32 within ring gear 36 to lubricate the running surfaces between hub 32 and ring gear journal portions 36a.
- a starter and timing mechanism comprislng:
- said ring gear and said pinion gear are both of the screw type with the axis of said motor output shaft arranged substantially at right angles t0 the axis of said crankshaft.
- said overrunning clutch comprises (l) a hub on said crankshaft extension passing at its forward end through a central aperture in said lower housing portion;
- said motor vehicle further includes a pulley secured to the forward face of said hub for driving connection to one or more accessory drive belts.
- said pulley includes a hub portion rearwardly of the sheave portion thereof;
- an inertia ring is carried on said hub portion to provide a vibration damper for said engine.
- a starter mechanism for a motor vehicle engine of the type including a crankshaft comprising:
- a starter and timing mechanism comprising:
- (G) means operative to collect the lubricant dripping from said timing chain and route it to said trough whereby to lubricate the driving connection between said ring gear and said pinion gear.
- a motor vehicle according to claim 6 wherein said trough extends upwardly to at least the level of the lower peripheral portion of the driving connection between said ring gear and said overrunning clutch, whereby the oil collected in said trough also serves to lubricate the driving connection between said ring gear and said overrunning clutch.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gears, Cams (AREA)
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60989167A | 1967-01-17 | 1967-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3428034A true US3428034A (en) | 1969-02-18 |
Family
ID=24442768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US609891A Expired - Lifetime US3428034A (en) | 1967-01-17 | 1967-01-17 | Constant mesh starter |
Country Status (1)
Country | Link |
---|---|
US (1) | US3428034A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4020935A (en) * | 1975-07-01 | 1977-05-03 | Facet Enterprises, Inc. | Direct cranking starter drive |
US4359018A (en) * | 1979-03-29 | 1982-11-16 | General Motors Corporation | Engine camshaft and piston lubrication |
US4384120A (en) * | 1981-01-30 | 1983-05-17 | Basf Aktiengesellschaft | Preparation of pyridines |
US4615227A (en) * | 1984-10-22 | 1986-10-07 | Ford Motor Company | Engine starter and accessory drive system |
US4887476A (en) * | 1988-09-13 | 1989-12-19 | Tanaka Kogyo Co., Ltd. | Small engine provided with self starting motor |
US5453056A (en) * | 1993-04-27 | 1995-09-26 | Firma Carl Freudenberg | Belt pulley |
US20130133606A1 (en) * | 2011-03-18 | 2013-05-30 | Zen Sa Industria Metalurgica | Device applied in start-up unit that constantly works geared to the main engine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2731005A (en) * | 1952-08-14 | 1956-01-17 | Frederick W Lausen | Electric starters for outboard motors |
AT186912B (en) * | 1954-11-15 | 1956-09-25 | Johann Khom | Starting device for the internal combustion engine of motor vehicles of all kinds |
US2908353A (en) * | 1957-09-03 | 1959-10-13 | Fairbanks Morse & Co | Engine starting unit |
US3108490A (en) * | 1956-07-13 | 1963-10-29 | Gen Motors Corp | Pulley and vibration damper unit |
-
1967
- 1967-01-17 US US609891A patent/US3428034A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2731005A (en) * | 1952-08-14 | 1956-01-17 | Frederick W Lausen | Electric starters for outboard motors |
AT186912B (en) * | 1954-11-15 | 1956-09-25 | Johann Khom | Starting device for the internal combustion engine of motor vehicles of all kinds |
US3108490A (en) * | 1956-07-13 | 1963-10-29 | Gen Motors Corp | Pulley and vibration damper unit |
US2908353A (en) * | 1957-09-03 | 1959-10-13 | Fairbanks Morse & Co | Engine starting unit |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4020935A (en) * | 1975-07-01 | 1977-05-03 | Facet Enterprises, Inc. | Direct cranking starter drive |
US4359018A (en) * | 1979-03-29 | 1982-11-16 | General Motors Corporation | Engine camshaft and piston lubrication |
US4384120A (en) * | 1981-01-30 | 1983-05-17 | Basf Aktiengesellschaft | Preparation of pyridines |
US4615227A (en) * | 1984-10-22 | 1986-10-07 | Ford Motor Company | Engine starter and accessory drive system |
US4887476A (en) * | 1988-09-13 | 1989-12-19 | Tanaka Kogyo Co., Ltd. | Small engine provided with self starting motor |
AU615210B2 (en) * | 1988-09-13 | 1991-09-26 | Tanaka Kogyo Co., Ltd. | Small engine provided with self starting motor |
US5453056A (en) * | 1993-04-27 | 1995-09-26 | Firma Carl Freudenberg | Belt pulley |
US20130133606A1 (en) * | 2011-03-18 | 2013-05-30 | Zen Sa Industria Metalurgica | Device applied in start-up unit that constantly works geared to the main engine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FIDELITY UNION TRUST COMPANY, TRUSTEE,NEW JERSEY Free format text: MORTGAGE;ASSIGNOR:CHRYSLER CORPORATION;REEL/FRAME:003832/0358 Effective date: 19810209 Owner name: FIDELITY UNION TRUST COMPANY, 765 BROAD ST., NEWAR Free format text: MORTGAGE;ASSIGNOR:CHRYSLER CORPORATION;REEL/FRAME:003832/0358 Effective date: 19810209 |
|
AS | Assignment |
Owner name: CHRYSLER CORPORATION, HIGHLAND PARK, MI 12000 LYNN Free format text: ASSIGNORS HEREBY REASSIGN, TRANSFER AND RELINQUISH THEIR ENTIRE INTEREST UNDER SAID INVENTIONS AND RELEASE THEIR SECURITY INTEREST.;ASSIGNORS:FIDELITY UNION BANK;ARNEBECK, WILLIAM, INDIVIDUAL TRUSTEE;REEL/FRAME:004063/0604 Effective date: 19820217 |
|
AS | Assignment |
Owner name: CHRYSLER CORPORATION Free format text: PARTES REASSIGN, TRANSFER AND RELINQUISH THEIR ENTIRE INTEREST UNDER SAID PATENTS ALSO RELEASE THEIR SECURITY INTEREST.;ASSIGNOR:MANUFACTURERS NATIONAL BANK OF DETROIL (CORPORATE TRUSTEE) AND BLACK DONALD E., (INDIVIDUAL TRUSTEE);REEL/FRAME:004355/0154 Effective date: 19840905 |