US3714834A - Engine starting gearing - Google Patents

Engine starting gearing Download PDF

Info

Publication number
US3714834A
US3714834A US00123498A US3714834DA US3714834A US 3714834 A US3714834 A US 3714834A US 00123498 A US00123498 A US 00123498A US 3714834D A US3714834D A US 3714834DA US 3714834 A US3714834 A US 3714834A
Authority
US
United States
Prior art keywords
sleeve
clutch member
low friction
housing
helical splines
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
US00123498A
Other languages
English (en)
Inventor
J Digby
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.)
Bendix Corp
Original Assignee
Bendix 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 Bendix Corp filed Critical Bendix Corp
Application granted granted Critical
Publication of US3714834A publication Critical patent/US3714834A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F02N15/02—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
    • 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
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/062—Starter drives
    • F02N15/063—Starter drives with resilient shock absorbers
    • 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
    • Y10T74/19—Gearing
    • Y10T74/19614—Disconnecting means

Definitions

  • the present invention relates to the field of starter gearing in general and in particular to that portion of the field of starter gearing which relates to positive shift dentil type overrunning clutch starter gearing.
  • Such a drive must be low in cost and economical in service and must further provide long service life.
  • a drive which generally meets the above described objectives may be obtained.
  • Such starter gearing suffers from a major defect. Simple reduction in size and elimination of parts results in a drive which is initially very reliable, but which eventually (within as little as one-fifth of its expected life) begins to suffer an impositiveness in engagement with the engine to be started. Examination of such drives has shown that a tooth abutment between the pinion gear and the gear of the engine to be started will prevent engagement of the drive and will also allow sufficient axial movement of the shifting mechanism for the starter motor contacts to be closed thereby causing the power shaft to rotate.
  • the starter gearing according to the present invention is provided with a dentil type overrunning clutch which assures high torque transmitting capability and is further provided with thrust bearing means interconnecting the pinion gear and the starter gearing sleeve which couples the starter gearing to the rotary power shaft.
  • a dentil type overrunning clutch which assures high torque transmitting capability
  • thrust bearing means interconnecting the pinion gear and the starter gearing sleeve which couples the starter gearing to the rotary power shaft.
  • the drawing shows, in a single FIGURE, starter gearing according to the present invention.
  • the drawing depicts starter gearing according to the present invention in a partial elevational, partial sectional, -partially broken away FIGURE.
  • starter gearing for an engine mounted on a power shaft 12 of a starter motor (not shown).
  • the drive includes an axially extending sleeve 14 connected to shaft 12 by helical splines 16 so as to be axially movable relative to the shaft 12.
  • the external surface of the forward or right hand extremity of the sleeve has helical splines 18 formed thereupon.
  • a driving clutch member 20 is threaded and adapted for movement toward and away from a gear 22 of the engine to be started.
  • the sleeve 14 will be discussed and described as having a spline end which corresponds to the right hand extremity of the sleeve 14 and a yoke end which corresponds to the left hand end of the sleeve 14.
  • annular driven clutch member 30 is integrally formed with the pinion gear as the left most extension thereof as illustrated in the drawings.
  • the driven clutch member is formed to provide an annular or circular recess 32 radially inwardly of the clutch member having its inner, or leftward, extremity defined by the end of sleeve l4'and its outer, or rightward, extremity defined by a shoulder on the pinion member 26 axially spaced from he end of sleeve 14.
  • the opposing or adjacent faces of the clutch members 20 and 30 are provided with complementary mutually engageable included torque transmitting dentil teeth 34 and 36, respectively.
  • the dentils are of the saw tooth variety and provide a one-way overrunning clutch connection.
  • a barrel shaped housing 38 having a closed end and an open end, is slidably supported at its closed end 40 on the external surface of sleeve 14.
  • a lock ring 42 is seated in a notch adjacent the closed end of the housing and establishes a left most extreme position for the barrel housing 38.
  • a second lock ring 44 is seated in a notch adjacent the open end of the housing and has sufficient radial length to engage driven clutch member 30 to thereby confine the clutch elements within the housing cavity.
  • the sleeve 14 is provided with a radial shoulder 46 intermediate its extremities to provide an abutment for a disc or washer means 48 slidably journaled on the sleeve 14.
  • a resiliently yieldable cylinder 50 preferably of an elastically deformable material such as rubber, is compressively confined between the closed housing end 40 and the washer means 48.
  • a resilient spring member 52 is compressively confined between the washer means 48 and the driving clutch member 20 to provide a biasing force urging the clutches in an engaged position.
  • Means for moving the starter gearing assembly toward or away from the engine gear 22 may comprise the conventional solenoid, air or hydraulic cylinder actuated lever, not illustrated, connected to the shift collar 54 which is coupled to the closed end 40 of barrel housing 38 by resilient means in the form of compressively confined spring 56.
  • a stop ring 58 limits the leftward movement of shift ring 54 under the influence of spring 56 and thus defines the yoke end of sleeve 14,
  • a low friction thrust washer 60 is positioned within cavity or recess 32 so as to provide an axially substantially solid connection between sleeve 14 and pinion 26 while providing a low friction rotational interface therebetween.
  • the interrelationship between the sleeve 14, thrust washer 60, pinion 26, and stop means 44 is operative to provide an axially substantially solid interconnection while the interrelationship of washer means 48, cylinder 50 and the closed end 40 of barrel housing 38 establishes an axially substantially constant position of the barrel housing 38 relative to the sleeve 14.
  • the starter gearing assembly is shifted to the right via positioning mechanism connected to collar 54 and along the power shaft 12 so that pinion gear 26 engages engine starter gear 22.
  • Shaft 12 is rotated by a starting motor and transmits torque through splines 16 to sleeve 14, from helical splines 18 to the driving clutch 20, driven clutch 30, pinion gear 26 to the engine gear 22.
  • engine gear 22 will now drive pinion 26 at a speed greater than that of the shaft 12.
  • Clutch teeth 34 and 36 will slip so that the starting motor is not driven at high engine speed. This will result in the driven clutch member 30 forcing the driving clutch member 20 leftward along helical splines 18 against the compression of resilient means 52.
  • the starter gearing mechanism accomplishes all of the normal functions of impact cushioning, overrunning, torque transmission, and in addition, eliminates impositive engagement of the pinion gear with the starter gear of the engine immediately following a tooth abutment situation.
  • Manufacturing is readily accomplished as the annular recess 32 is a simple cylindrical configuration and thrust washer 60 may be any suitable material which readily provides low friction surfaces for interengagement with sleeve 14 and pinion 26.
  • Engine starter gearing comprising:
  • a sleeve slidably secured to said shaft, said sleeve having external helical splines formed on one end thereof;
  • a pinion gear slidably journaled for axial movement relative to said shaft adapted for movement into and out of engagement with a gear of the engine to v be started;
  • said recess being defined by the radially extending end of the splined end of said sleeve, said driven clutch member and a shoulder portion of the pinion gear; driving clutch member having internal helical splines slidably mounted on said sleeve member with said internal helical splines in mating engagement with said sleeve external helical splines; said driving and driven clutch members having complementary mutually engageable inclined torque transmitting teeth for transmitting torque therebetween in one direction of relative rotation; a barrel housing having an open end and a closed end, slidably supported on said sleeve, said open end partially encompassing said clutch member; containment means within said housing adjacent the open end thereof adapted for engagement with the driven clutch member for confining said clutch member within said.
  • Engine starting gearing comprising:
  • a sleeve slidably secured to said shaft, said sleeve having a yoke end and a spline end and including external helical splines on said spline end;
  • first stop means defining the extreme yoke end position of said shifting ring
  • a pinion gear slidably journaled for axial movement relative to said power shaft adapted for movement into and out of engagement with a gear of the engine to be started;
  • annular driven clutch member connected to said pinion gear for movement therewith and forming a circular recess radially inwardly of said driven clutch member; said recess being defined on one side of the spline end of said sleeve;
  • a driving clutch member having internal helical splines slidably mounted on said sleeve member with said internal helical splines in mating engagement with said sleeve external helical splines;
  • said driving and driven clutch members having complementary mutually engageable inclined torque transmitting teeth for transmitting torque therebetween in one direction of relative rotation;
  • a barrel housing having an open end and a closed end supported on said sleeve, said open end spatially encompassing said clutch members;
  • second stop means operatively associated with said sleeve for confining the closed end of said barrel thereby establishing a normal axial position of said barrel relative to said sleeve; resilient means compressively confined between said barrel and said shifting ring operative to bias said shaft ring towards said first stop means;
  • a low friction washer located within, and substantially filling, said circular recess to provide a low friction substantially axially solid connection between said sleeve and said pinion gear.

Landscapes

  • 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)
  • Gear Transmission (AREA)
US00123498A 1971-03-12 1971-03-12 Engine starting gearing Expired - Lifetime US3714834A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12349871A 1971-03-12 1971-03-12

Publications (1)

Publication Number Publication Date
US3714834A true US3714834A (en) 1973-02-06

Family

ID=22409020

Family Applications (1)

Application Number Title Priority Date Filing Date
US00123498A Expired - Lifetime US3714834A (en) 1971-03-12 1971-03-12 Engine starting gearing

Country Status (9)

Country Link
US (1) US3714834A (enrdf_load_html_response)
JP (1) JPS5429657B1 (enrdf_load_html_response)
AU (1) AU458844B2 (enrdf_load_html_response)
BR (1) BR7201370D0 (enrdf_load_html_response)
CA (1) CA947114A (enrdf_load_html_response)
DE (1) DE2210952A1 (enrdf_load_html_response)
FR (1) FR2129581A5 (enrdf_load_html_response)
GB (1) GB1323399A (enrdf_load_html_response)
IT (1) IT950080B (enrdf_load_html_response)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019393A (en) * 1976-01-12 1977-04-26 Facet Enterprises, Inc. Engine starter gearing
FR2465922A1 (fr) * 1979-09-24 1981-03-27 Ingersoll Rand Co Dispositif a liaison unilaterale entre deux arbres, l'un menant, l'autre mene, evitant l'entrainement du premier par le second
US4744258A (en) * 1986-12-11 1988-05-17 Facet Enterprises, Inc. Non-indexing engine starter gearing
US4748862A (en) * 1987-03-17 1988-06-07 General Motors Corporation Starter drive having a contaminant collecting bushing
US5018611A (en) * 1988-10-27 1991-05-28 Hitachi, Ltd. Pinion clutch for starter
US5042312A (en) * 1990-04-27 1991-08-27 Facet Enterprises, Incorporated Dual shock absorber starter drive
US6105742A (en) * 1999-01-12 2000-08-22 Ingersoll-Rand Company Clutch rings and overrunning clutch incorporating same
US20140007723A1 (en) * 2011-03-22 2014-01-09 Denso Corporation Drive force transmission apparatus
RU2542829C2 (ru) * 2013-07-25 2015-02-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" НГТУ Привод стартера двигателя внутреннего сгорания (варианты)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2759119B1 (fr) * 1997-02-06 1999-03-05 Valeo Equip Electr Moteur Demarreur de vehicule automobile comportant un lanceur perfectionne

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181375A (en) * 1963-04-01 1965-05-04 Bendix Corp Engine starter drive
US3181673A (en) * 1963-02-11 1965-05-04 Bendix Corp Self-energizing overrunning clutch with speed responsive retarder
US3263509A (en) * 1964-12-16 1966-08-02 Bendix Corp Engine starter gearing
US3318162A (en) * 1965-05-27 1967-05-09 Bendix Corp Starter drive

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181673A (en) * 1963-02-11 1965-05-04 Bendix Corp Self-energizing overrunning clutch with speed responsive retarder
US3181375A (en) * 1963-04-01 1965-05-04 Bendix Corp Engine starter drive
US3263509A (en) * 1964-12-16 1966-08-02 Bendix Corp Engine starter gearing
US3318162A (en) * 1965-05-27 1967-05-09 Bendix Corp Starter drive

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019393A (en) * 1976-01-12 1977-04-26 Facet Enterprises, Inc. Engine starter gearing
FR2337820A1 (fr) * 1976-01-12 1977-08-05 Facet Enterprises Transmission entre un demarreur et un moteur a entrainer
FR2465922A1 (fr) * 1979-09-24 1981-03-27 Ingersoll Rand Co Dispositif a liaison unilaterale entre deux arbres, l'un menant, l'autre mene, evitant l'entrainement du premier par le second
US4261452A (en) * 1979-09-24 1981-04-14 Ingersoll-Rand Company Overrunning clutch
US4744258A (en) * 1986-12-11 1988-05-17 Facet Enterprises, Inc. Non-indexing engine starter gearing
US4748862A (en) * 1987-03-17 1988-06-07 General Motors Corporation Starter drive having a contaminant collecting bushing
US5018611A (en) * 1988-10-27 1991-05-28 Hitachi, Ltd. Pinion clutch for starter
US5042312A (en) * 1990-04-27 1991-08-27 Facet Enterprises, Incorporated Dual shock absorber starter drive
US6105742A (en) * 1999-01-12 2000-08-22 Ingersoll-Rand Company Clutch rings and overrunning clutch incorporating same
US20140007723A1 (en) * 2011-03-22 2014-01-09 Denso Corporation Drive force transmission apparatus
US9334926B2 (en) * 2011-03-22 2016-05-10 Denso Corporation Drive force transmission apparatus
RU2542829C2 (ru) * 2013-07-25 2015-02-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Нижегородский государственный технический университет им. Р.Е. Алексеева" НГТУ Привод стартера двигателя внутреннего сгорания (варианты)

Also Published As

Publication number Publication date
FR2129581A5 (enrdf_load_html_response) 1972-10-27
AU3984572A (en) 1973-09-13
CA947114A (en) 1974-05-14
IT950080B (it) 1973-06-20
DE2210952A1 (de) 1972-09-21
BR7201370D0 (pt) 1973-05-24
AU458844B2 (en) 1975-02-21
JPS5429657B1 (enrdf_load_html_response) 1979-09-25
GB1323399A (en) 1973-07-11

Similar Documents

Publication Publication Date Title
US4488054A (en) Starter apparatus
US3714834A (en) Engine starting gearing
US3905245A (en) Engine starter gearing
US2211053A (en) Starting apparatus for internal combustion engines
US4744258A (en) Non-indexing engine starter gearing
US4019393A (en) Engine starter gearing
US4322985A (en) Engine starter with an overrunning clutch device
US4524629A (en) Compact engine starter drive
US4020935A (en) Direct cranking starter drive
US3646820A (en) Worm drive for starter motors for internal combustion engines
US3664201A (en) Starter drive for combustion engines
US2933926A (en) Engine starter drive
GB1564739A (en) Starter with a shock absorbing arrangement
US4715239A (en) Engine starter gearing
US3114270A (en) Starter drive
US3771372A (en) Starter means for an internal combustion engine
US2235076A (en) Starter gearing
US3090242A (en) Starter drive
EP0109246B1 (en) Starting mechanism for internal combustion engine
US3868858A (en) Starter for internal combustion engines
US3318162A (en) Starter drive
US5513540A (en) Engine starter gearing having improved grease retention
US3701285A (en) Gearing starter
US3788150A (en) Inertia sliding type internal combustion engine starter
US2777328A (en) Control for starter pinion engaging mechanism