US1973287A - Starter mechanism - Google Patents

Starter mechanism Download PDF

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Publication number
US1973287A
US1973287A US461604A US46160430A US1973287A US 1973287 A US1973287 A US 1973287A US 461604 A US461604 A US 461604A US 46160430 A US46160430 A US 46160430A US 1973287 A US1973287 A US 1973287A
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US
United States
Prior art keywords
engine
inertia
boss
clutching
starter
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
US461604A
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English (en)
Inventor
Raymond P Lansing
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.)
Eclipse Aviation Corp
Original Assignee
Eclipse Aviation Corp
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 Eclipse Aviation Corp filed Critical Eclipse Aviation Corp
Priority to US461604A priority Critical patent/US1973287A/en
Priority to GB17093/31A priority patent/GB379778A/en
Priority to FR718662D priority patent/FR718662A/fr
Priority to DEE41358D priority patent/DE581024C/de
Application granted granted Critical
Publication of US1973287A publication Critical patent/US1973287A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/001—Arrangements thereof
    • 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
    • F02N5/00—Starting apparatus having mechanical power storage
    • F02N5/04—Starting apparatus having mechanical power storage of inertia type

Definitions

  • This invention relates to starting apparatus for internal combustion engines, and more particu- ⁇ larly to starters of the inertia type. 4
  • One of the objects of the invention is to provide a novel engine starter of the typ having a fsmall, high speed inertia member, which is simple and compact-in structure, efficient and reliable in operation, and may be mounted as a selfcontained unit upon a rotatable member of the engine to be started.
  • Another object is to provide a novel engine starter of the inertia type which is adapted for mounting upon a rotatable member of the engine to be started, and normally rotates therewith,
  • a furtherobject is to provide a novel engine starter of the inertia type which, because of its compactness, unitary mounting,and ease and emciency of operation, is especially well adapted for use with small engines, such as those of the outboard type commonly employed to propel small boats.
  • Still another object is to provide a novel engine starter in which the energy stored in a rapidly rotating inertia member may be transferred directly to a member of the engine to be started without loss through reduction gearing, the starter mechanism being mounted on said oengine member and adapted to rotate therewith during normal engine operation.
  • Fig. 1 is a side elevation, in section, of one embodiment of the present invention
  • Fig. 2 is a section taken on line 2-2 of Fig. l;
  • Fig. 3 is a detail, in section, of a modication of the present invention.
  • the engine to be started is provided with a rotatable member 3, which, if desired, may be in the form of a flywheel, drivably secured to a shaft 4 by any suitable means such as a key 5 and nut 6.
  • Shaft 4 may be the crank shaft of the engine or Aan extension thereof.
  • a circular plate forming the base upon which the remainder of the starter mechanism is mounted, and having a peripheral flange 9 to which may be removablysecured, as by screws 10, a easing 11 adapted to house the inertia starting mechanism.
  • Base plate 8 is provided with a central boss 12 extending upwardly therefrom within casing 1l in axial prolongation of shaft 4, and constituting a supporting shaft on which the inertia member 13 may be rotatably mounted.
  • Inertia member 13 is preferably in the form of a flywheel having a rim 14, wherein a substantial amount of its mass is concentrated, and a hub 15 surrounding the upper portion of boss 12 and rotatably supported thereon by ball bearings 16, the latter being retained in their proper operative positions by suitable shoulders formed on boss 12 and hub l5, and by a bearing retainer member 17 which is threaded into the interior of the upper end of boss l2.
  • Suitable means are provided for rotating the inertia memberabout its supporting boss 12, said means comprising, in the present embodiment,l a planetary gear train having as its sun gear a pinion 18 formed integrally with an annular plate 19 which is secured to hub l5 of the inertia member as by screws 20.
  • Meshing with pinionl are a plurality of planetary gears 2l, which also engage at their outer peripheries an internal ring' gear 22 rigidly secured to the interior of casing 11 as by screws 23.
  • Planetary gears 21 are rotatably supported on bushings 24 which are' countersunk in and secured to a carrier plate 25 by meansA of screws V26, an annular spacing-ring 27 also being provided to maintain said gears in their proper spaced relation.
  • Carrier plate is annular in form and provided with a central, upwardly extending boss 28 which is rotatably journaled withwasher combination 34 is threaded to the upper4 extremity of boss 28 and rests upon the upper surface of gland 29 to support the planetary gear mechanism in operative position.
  • africtional clutching member comprising an interiorly threaded hub 35 which engages a correspondingly exteriorly threaded portion of boss 12, and a disc 38, secured to hub 35 as by rivets 37 ⁇ and having an angularly disposed peripheral flange 39 encircling, and being provided with a frictional braking surface 40 adapted to engage, a correspondingly angularly disposed portion 41.01 the rim 14 of inertia member 13.
  • a suitable coil spring 42 is interposed between hub V35 of the clutching member and base plate 8 and tends to urge the clutching member upward into frictional engagement with the inertia member,
  • hub 35 of the clutch member is provided with corresponding slots also engaged by pin 47, an interiorly threadednut 49 engaging the outer portion of the hub 'and being provided with 4an inturned lip 50 adapted to engage the under side of pin 47 and to hold it rigidly within the slots formed in hub 35.V
  • hubl 35 Due to the threaded engagement between hubl 35 and boss 12, there will be a slight rotation of the former during its downward movement which will in turn be communicated to pin 47, and slots 48 are therefore made slightly elliptical to allow for this rotation.
  • the downward movement of hub 35 carries with it clutch disc 38 and disengages frictional surface 40 from the corresponding surface 41- of the inertia member, leaving the latter free to rotate about boss 12 upon its ball bearings 16.
  • Hand crank 32 may now be rotated to actuate the inertia member and store energy therein, the rotating energy being applied to the inertia member through the gear train comprising carrier plate 25, planetary gears 21, internal gear 22 (which is at this time stationary since casing 11, base plate 8, and the other portions of the engine mechanism are still at rest), and pinion 18.
  • the gear train comprising carrier plate 25, planetary gears 21, internal gear 22 (which is at this time stationary since casing 11, base plate 8, and the other portions of the engine mechanism are still at rest), and pinion 18.
  • the oper' ator ceases to rotate hand crank 32 and the latter is automatically disconnected from the starting mechanism by the well-known action of its.. pin-and-slot connection.
  • spring 42 becomes effective to force hub 35 of the clutching member upward so as to'bring frictional surface 40 of the clutch disc into engagement with surface 41 of the inertia member.
  • the pressure therebetween rapidly increases to a predetermined maximum (reached when the upper surface of hub 35 contacts with shoulder 43 of boss 12) and the energy stored in the rapidly rotating inertia member is transferred through the clutching member to Aboss 12, and thence through base .
  • plate 8 and The means for disengaging the clutching member from the inertia member may be modifiedhto provide manually operated means for disengag g and engaging the clutching means from and with Fig.
  • FIG. 3 illustrates one form of such modication wherein the spring 42 for l: constantly urging the clutching member into contact with the inertia member is omitted, the cranking pin 31 modified to the form of 'oppof sitely disposed lugs 31a and 31h, and the rod 45 lengthened to extend out of and above the boss ⁇ conventional types of starters.
  • the button 46 is also omitted and the upper end of the rod provided with an enlarged portion 46a of such diameter as to slide freely within the cranking member 32. Otherwise the ⁇ device is operated as above described.
  • a simple and effective clutching means has been provided directly connecting the inertia member and a member of the engine to be rotated, thus providing for maximum transfer of energy between these parts without the loss which would be incident to the employment of reduction gearing such as is usually included in the driving connection.
  • this starter may be used on internal combustion engines other than those of the outboard type and isv particularly adapted for use on engines which are not fitted with flanges totake the Various other changes, which will now occur to those skilled in the art, may be made in the form, details of construction, and arrangement of the parts without departing from the spirit of the invention, and reference is therefore to be had to the appended claims for a cabinon of the limits of the invention.
  • crank shaft of the engine to be started a member operatively secured to said crank shaft for rotation therewith .and having a central boss in axial prolongation of said crank shaft, a flywheel rotatably mounted' on said boss, a frictional clutching member driv- 3.
  • An engine starter comprising a rotatable,i
  • a rotatable memberof an engine to be started afb/wheel rotatably mounted on said engine member, manual cranking means for rotating said ywheel independently of the engine member so as to store energy therein, means for drivably connectlg the flywheel to the engine member so as to transfer the energy thus stored for starting purposes, said last named means being effective to frictionally connect the flywheel and engine member yfor rotation in unison during normal operation of the engine, and means including a rod extending through said flywheel for operatively connecting said manual cranking means with said connecting means.
  • a rotatable member of an engine to loe-started a ywheel rotatably mounted on said engine member, means including a gear train one element of which is spaced from but rigid with said engine member for rotating said flywheel independently of the engine member so as to store energy therein, and means for drivably connecting the flywheel to the engine member so as to transfer the energy thus stored for starting purposes, said last named means including a friction clutch and being effective to connect the flywheel and engine member for rotation in unison during normaloperation of the engine.
  • An engine starter comprising aA 'rotatable member of an engine to ⁇ be started, a flywheel rotatably mounted on the engine member, a clutching member carried by the engine member and adapted to frictionallyengage the flywheel for normally connecting the latter and the engine member for rotation in unison, means including a gear train one element of which isv spaced from but rigid with said engine member for rotating the ywheel independently of the engine member to store energy therein, means for disengaging the clutching member from the fly- 'wheel during independent rotation of the latter,
  • a. rotatable member of an engine to be started an inertia. member rotatably supported on saidengine member, a clutch member carried by the engine member and adapted to frictionally engage the inertia member, a casing secured to said engine member for rotation therewith and enclosing the inertia member and clutch member, means including a gear train for rotating the inertia member independently of the engine member and for storing energy therein, one o f the elements of said interposed between said boss and ywheel.
  • means including a gear train for cranking said flywheel independently of the engine 'member in order to store energy therein, and means for transferring said stored energy to the engine member to start the engine, said transferring means operating through 'theinstrumentality of said clutch 'member.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Operated Clutches (AREA)
US461604A 1930-06-16 1930-06-16 Starter mechanism Expired - Lifetime US1973287A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US461604A US1973287A (en) 1930-06-16 1930-06-16 Starter mechanism
GB17093/31A GB379778A (en) 1930-06-16 1931-06-12 Improvements in starter mechanism for internal combustion engines
FR718662D FR718662A (fr) 1930-06-16 1931-06-15 Perfectionnements aux démarreurs
DEE41358D DE581024C (de) 1930-06-16 1931-06-16 Anlasser fuer Brennkraftmaschinen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US461604A US1973287A (en) 1930-06-16 1930-06-16 Starter mechanism

Publications (1)

Publication Number Publication Date
US1973287A true US1973287A (en) 1934-09-11

Family

ID=23833242

Family Applications (1)

Application Number Title Priority Date Filing Date
US461604A Expired - Lifetime US1973287A (en) 1930-06-16 1930-06-16 Starter mechanism

Country Status (4)

Country Link
US (1) US1973287A (fr)
DE (1) DE581024C (fr)
FR (1) FR718662A (fr)
GB (1) GB379778A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE865688C (de) * 1948-10-02 1953-02-05 Kloeckner Humboldt Deutz Ag Schwungkraftanlasser fuer Brennkraftmaschinen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014214614B4 (de) 2014-07-25 2017-07-06 Bayerische Motoren Werke Aktiengesellschaft Verbrennungskraftmaschine mit Startvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE865688C (de) * 1948-10-02 1953-02-05 Kloeckner Humboldt Deutz Ag Schwungkraftanlasser fuer Brennkraftmaschinen

Also Published As

Publication number Publication date
DE581024C (de) 1933-07-20
FR718662A (fr) 1932-01-27
GB379778A (en) 1932-09-08

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