US1973288A - Engine starting mechanism - Google Patents

Engine starting mechanism Download PDF

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Publication number
US1973288A
US1973288A US515638A US51563831A US1973288A US 1973288 A US1973288 A US 1973288A US 515638 A US515638 A US 515638A US 51563831 A US51563831 A US 51563831A US 1973288 A US1973288 A US 1973288A
Authority
US
United States
Prior art keywords
engine
motor
driving
elements
engagement
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
US515638A
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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 US515638A priority Critical patent/US1973288A/en
Priority to FR732329D priority patent/FR732329A/fr
Priority to FR732334D priority patent/FR732334A/fr
Application granted granted Critical
Publication of US1973288A publication Critical patent/US1973288A/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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
    • E05F11/44—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by one or more lifting arms
    • E05F11/445—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by one or more lifting arms for vehicle windows
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/55—Windows
    • 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
    • Y10T74/134—Clutch connection
    • 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
    • Y10T74/137—Reduction gearing

Definitions

  • a further object is to provide a power driven Istarter of novel construction in which driving l engagement between the starter and engine is effected by radially movable friction members which are normally held in a retracted, non--- driving position.
  • Another object is to provide an electric starter employing radially movableA driving members so controlled and disposed with respect to the engine member which they drive that their release occurs automatically upon starting of the engine under its own power.
  • Another object is to provide in a starter of the type employing power means, such es an electric motor, novel unitary means for controlling both the driving connection between the engaging and engaged members and the energization of the motor.
  • a further object is to provide a novel electric starting mechanism having the armature shaft of the motor disposed substantially coaxially with the engine engaging member, and embodying means for rotating the engine engaging member at a much lower speed than that of 'the armature shaft of the motor.
  • Another object of the invention is to provide a novel engine starter of the electric type that is symmetrical in form and light in weight.
  • Fig. l is a longitudinal section of a device embodying the invention. i i
  • Fig. 2 is a transverse sectional view along th line 2-2 of Fig. l;
  • Fig. 3 is a transverse sectional view along the line 3-3 of Fig. 1;
  • Fig. 4 is a sectional view illustrating one type of engaging mechanism which may be employed in accordance with the invention.
  • l Fig. 5 is a detail view, with parts broken away, illustrating one form of control means which may be employed in accordance with the invention.
  • the engine to be started is provided with a rotatable shaft 5, which, if desired, may be integral with or secured to the crankshaft of the engine; or it may be an extension of the crankshaft, or a member drivably associated therewith.
  • Novel starting or cranking means are associated with rotatable member 5 for developing and transmitting a starting torque to said member whereby the engine may be cranked.
  • such means include a housing 6 having suitable means 7 associated therewith for engagement with a flange 8 provided on an electric motor housing 9, said housing 6 being likewise provided with a flange l0 for securing the same to the crankcase of lthe engine, a portion ci said crankcase being shown at ll.
  • rlihe electric motor which is of any suitable construction, is provided with an armature shaft l2 having a central bore for a purpose to be set forth hereafter, and a laterally extending reduced portion 13 which is rotatably mounted as by means of suitable bearing 14 in the transversely disposed wall l5 ex tending across motor housing 9.
  • a disc or spider 16 Drivablysecured to the reduced portion 13 of the armature shaft is a disc or spider 16 having a centrally disposed hub 17 surrounding the shaft l2 and adapted to rotate therewith by virtue of the provision of lreys i9.
  • the disc or spider 16 is adapted to carry a plu-1 rality oi planetary pinions (preferably 3) each of said pinions comprising a hub 22 having gear teeth 23 cut thereon at one end and teeth 24 at the other end, the number of teeth 23 being prei@ erably less than that of the teeth 24.
  • Three equally spaced openings are preferably provided in disc or spider 16, through each of which extends one of such planetary pinions or gears, the gears being mounted in operative position by means of bolts 26 extending through plates 16, the headed ends of said bolts having engagement with a ring 27 and the opposite ends being member and bolt 26.
  • Plates 16 and 27 are rigid- A ly retained in spaced relation by a suitable number .of bolts 34 and spacer sleeves 3'5.
  • astationary internal gear 38 which is secured in place between flange 8 and the outer edge of section 6 by the above mentioned screws 7.
  • teeth of the gear 24 on the opposite end of the hubs 22 are adapted to mesh with a movable internally toothed gear 40 having a hub secured to a hollow drive shaft 41 by suitable means 42, the forward end of the shaft 41 being provided with similar means 43 for rigidly retaining the hub 45 of the rotatable disc 46 constituting part of the novel engine engaging means now to be described.
  • radially movable elements 50 and 51 pivotally mountedon studs 52 and 53 respectively, these studs being located in openings provided in disc 46.
  • These elements 50 and 51 are of a shape resembling a sector, on the arcuate rims of which are provided correspondingly shaped plates 54 and 55 to which are aixed bands 56 and 57 of suitable friction material, the curvature of these plates and bands being such as to cause them to register properly with the inner surface of drum 48 upon radial movement from their nori mal positions shown in Fig. 1.
  • the short concave surfaces of elements 50 and 51 adjacent the axis of rotation of the starter elements are provided with outwardly turned lugs or flanges 59 and 60 adapted to be engaged by a conical cam or wedge 61 actuated by a lever 65 pivotally secured to a bracket 67 and carrying at its lower end a shifter yoke 68 engaging a rod 69 between collars 70.and 71, the rod 69 being a horizontally disposed rod extending longitudinally through the bore of armature shaft 12 and continuing coaxially through the hollow drive shaft 41 and terminating in the wedge 61, above referred to, this wedge being preferably integral therewith.
  • a spring 73 is preferably provided in a position to exert pressure against the collar 70 to maintain the rod 69 normally in the position shown in Fig. 1, the opposite end of the spring being seated on spring seat 75 which also acts as a guidev for the rod 69 and a closure means for the opening in the wall 76 of the motor casing 9.
  • the control means for conjointly operating the motor and meshing means further comprises a second lever 79 pivoted intermediate its length, as shown at 80, to the second finger of bracket 67, the lever 79 being further provided with the projecting arm 81, which with the right hand portion 82 of the lever, forms a bell crank member normally maintained in the position indicated in Fig. 1 by the force of tension spring 84 secured to the outer end of arm 81 and to the upwardly extending support 85, mounted on the bracket 67.
  • a link 89 is fastened to the bell crank arm 81 to indicate any suitable means for actuating the same either manually or otherwise.
  • a switch member 96 of any suitable construction including an outwardly projecting operating button 91 located in the path of the outer end of the lever 79, the lever 79 being so disposed that it strikes the button 91 only after the rod 69 has been moved to the left sufficiently to cause driving engagement between the friction surfaces 56 and 57 and the drum 48, the surface 65a at the end of lever 65 being suitably shaped to permit the completion of the switch closing movement.
  • springs 84 and 73 act to return the parts of the control linkage to their respective positions as shown in Fig. 1.
  • a ,further novel feature of the invention is the provision of means whereby the starter parts are fully protected against return torque transmission due to starting of the engine under its own power.
  • Such means consists of so constructing and mounting the elements 50 and 51 that when the engine starts, slipping will occur between friction surfaces 56 and 57 on the one hand, and the surface of drum 48 on the other.
  • This operation is effective by the use of springs 115 and 116 (Fig. 2) fastened at their ends to the members 50 and 51, as shown in Fig. 2, the points of attachment being so located with respect to the pivot studs 52 and 53 and their axes of rotation, that they exert a resilient pressure in opposition to the centrifugal force resulting ⁇ to become the driving element, the friction surfaces 56 and 57 are rendered ineffective to maintain driving connection.
  • the shape and method of mounting the sector elements 50 and 51 are such as to render them self-energizing or self-Wrapping-that is, 'to cause them to grip the drum 48 with a force which increases from the normal engaging ⁇ force to a much greater maximum, which force is a cumulative resultant of the centrifugal force due to rotation, plus the force tending to turn the sector elements about their pivots 52 and 53, respectively.
  • the latter force by reason of the placing of the pivots eccentrically, as shown, is exerted directly against the surface o f the drum 48.
  • the switch is operated and the motor energized to actuate the engine starting apparatus subsequent to the time of actuation of the meshing or engaging members. If, however, it is desired to first develop a starting torque in the motor and transmit the same to the driving elements 50 and 51, creating therein a tendency (opposed by a restraining means) to move radially outward into driving engagement with the drum 48, the embodiment illustrated in Figs. 4 and 5 may be employed.
  • this alternative construction -comprises a mechanism constantly tending to effect operative driving engagement with the drum 48
  • sector elements 50 ⁇ and 51 have associated therewith a circular plate or clamp 93 provided with a projecting annular rim 94 adapted to surround and enclose the ngers or iianges 59 and 60, thereby preventing radial movement of the members 50 and 51 to effect driving engagement with the surface of drum 48 so long as the clamp 93 remains in the position shown in Fig.
  • Figs. 1 and 2 means are provided through which the operator may, when desired, produce a driving engagement with the drum 48 and thereby cause a transmission of starting energy to the crankshaft of the engine.
  • the operator by suitable means (not shown) exerts a pressureon a rod 100 (Fig. 5) causing the same to swing lever 101 to the left about its pivot 102 which supports the said lever on bracket 103.
  • Lever 101 is provided with a bifurcated construction, as indicated at 104, adapted to embrace the slotted portion of rod 69 and actuate same through the intermediary of the collars '75 and 71' to produce a shifting thereof to the left ⁇ and consequent release of the plate 93 from its clamping relation to the sector elements 59 and 60.
  • the action of the coil spring 107 which transmits the pressure exerted on the lever 101, will move striker 108 into engagement with button 109 to operate switch 90 which, in this embodiment, has the same function and method of operation as switch 90 of Fig. 1.
  • switch 90' has been closed, further movement of the lever 101 to the left to shift rod 69' is possible by virtue of the sliding fit between the pin 111 and the hole in member 101 receiving this pin.
  • the switch 90 is rst'actuated to energize the motor thereby causing rotation of the sector f elements 50 and 51 and developing a centrifugal force tending to move these parts radially outward into engagement with the drum 48.
  • Such engagement is not possible until the further movement of the lever 101 causes compression of spring '73' and a longitudinal shifting of rod 69 to release clamp 93.
  • the sector elements are free to effect driving engagement as above explained.
  • said controlling means comprising a member movable at right angles to the plane of movement of said friction elements and adapted to control said friction elements by engagement therewith, and means for initially energizing said friction elements comprising a motor drivably connected to said friction elements.
  • a motor coaxially disposed with respect to said rotatable member, means movable radially to drivably connect said motor and said rotatable member, and means for controlling the radial movement of said last named means comprising a member movable at right angles to the plane of movement oi said radially movable means, said radially movable means being so disposed with respect to said motor and controlling means that the driving connection between the starting mechanism and the engine is caused to yield whenever the torque generated by the engine exceeds that of the driving motor.
  • a member adapted to be rotated thereby means for rotating said friction elements comprising a motor and positive driving connections between said motor and said frictional elements, means for moving said friction elements into engagement with said first named member, and common control means for said last named means and said motor.
  • a member adapted to be rotated thereby means for rotating said friction elements comprising a motor and positive driving. connections between said motor and said friction elements, and releasable means for holding said friction elements in nonengagingposition, said friction elements being movable by centrifugal action into engagement with said first named member upon actuation of said releasable means.
  • An engine starter including a drive having a driving member adapted to be moved radially with respect to a member of the engine to be started and to engage said engine member, an'
  • an electric motor and an energizing switch therefor means for drivably connecting said motor and driving member including a hollow shaft, common means for dissimultaneously operating said driving member and switch, said means including a longitudinally movable rod disposed in coaxial alignment with said driving and engine members and extending through said hollow shaft, and a lever adapted to actuate said switch and move said rod longitudinally.
  • An engine starting mechanism comprising in combination with a rotatable member of the engine to be started, power means, means for actuating said power means to develop starting energy therein, speed responsive mechanism driven by said power means and tending to move into engagement with said engine member to transmit said starting energy thereto, resilient means normally restraining said speed responsive mechanism, and means operable at the will of the operator for rendering said restraining means ineffective to prevent said engagement.
  • An engine starting mechanism comprising in combination with a rotatable member of the engine to be started, power means, means for actuating said power means to develop starting energy therein, speed responsive mechanism driven by said power means and tending to move into engagement with said engine member to transmit said starting energy thereto, means including a hollow shaft forming an unyielding driving connection between said power means and speed responsive mechanism,- and means operable at the will of the operator for rendering said speed responsive mechanism effective to engage said engine member, said last named means extending through said hollow shaft.
  • An engine starting mechanism comprising in combination with a. rotatable member of the engine to be started power means, means for actuating said power means to develop starting energy therein, speed responsive mechanism driven 12() by said power means and tending to move into engagement with said engine member to transmit starting energy thereto, means normally restraining said speed responsive mechanism, means operable at the will of the operator for rendering said restraining means ineffective to preventsaid engagement, and common control means for said last named means and said power means.
  • an engine starting mechanism of the type embodying an electric motor and an energizing circuit therefor said motor having a hollow shaft for transmitting the torque developed therein to a member of the engine to be started, means movable radially with respect to said hollow shaft to effect self-energizing engagement with said engine member, and means for controlling the radial movement of said last named means, said control means comprising a rod extending through said hollow shaft and operable as' an incident to the closing of said energizing circuit.
  • the combination with the member of an engine to be started of power means friction members adapted to engage the engine member, meansdrivably 'connecting the friction members and power 145 means, manuallyv operable means for moving said friction elements into driving engagement with the engine member, and yielding means normally effective to hold said friction members in non- ⁇ driving position.
  • the combination with the member of an engine to be started of a motor friction members radially movable to engage the engine member and yieldingly transmit torque thereto, said friction members being drivably connected to said motor, and common means for controlling the energization of the motor and the engagement of said friction members.
  • the combination with a rotatable hollow shaft and a cylindrical member disposed in coaxial alignment therewith, a plurality of radially movable elements rigidly secured to said hollow shaft, power means for rotating said shaft and radially movable elements, means for moving said elements into frictional engagement with said cylindrical member comprising a rod extending through said hollow shaft and movable along the axis thereof, and resilient means acting through said rod to hold said radially movable elements normally disengaged from said cylindrical member.
  • a starter of the class described in combination with power means, engine driving members movable radially into driving engagement with a member of the engine to bestarted, means forming an unyielding driving connection between said power means and said engine driving member, and means including a manually operable member movable at right angles to the plane of movement of the said driving members for controlling the radial movement of the latter, said manually operable member being operable as an incident to the energizaton of said power means.
  • the combination with a rotatable hollow shaft and a cylindrical member disposed in coaxial alignment therewith of a plurality of radially movable elements, electrically energized means for rotating said shaft and radially movable elements, and means for moving said elements into frictional engagement withr said cylindrical member comprising a rod extending through said hollow shaft and movable along the axis thereof.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
US515638A 1931-02-13 1931-02-13 Engine starting mechanism Expired - Lifetime US1973288A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US515638A US1973288A (en) 1931-02-13 1931-02-13 Engine starting mechanism
FR732329D FR732329A (fr) 1931-02-13 1932-02-04 Démarreurs de moteurs
FR732334D FR732334A (fr) 1931-02-13 1932-02-11 Mécanisme de commande pour fenêtres, notamment d'automobiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US515638A US1973288A (en) 1931-02-13 1931-02-13 Engine starting mechanism

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US1973288A true US1973288A (en) 1934-09-11

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Application Number Title Priority Date Filing Date
US515638A Expired - Lifetime US1973288A (en) 1931-02-13 1931-02-13 Engine starting mechanism

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FR (2) FR732329A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865358A (en) * 1956-06-25 1958-12-23 Musgrave Orly Electric motor housings for gasoline engine starters
US5086657A (en) * 1991-04-22 1992-02-11 General Motors Corporation Engine starting apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865358A (en) * 1956-06-25 1958-12-23 Musgrave Orly Electric motor housings for gasoline engine starters
US5086657A (en) * 1991-04-22 1992-02-11 General Motors Corporation Engine starting apparatus

Also Published As

Publication number Publication date
FR732329A (fr) 1932-09-19
FR732334A (fr) 1932-09-19

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