US3821882A - Elastic rotary coupling, particularly for the driving of rpm regulators associated with fuel injection pumps - Google Patents

Elastic rotary coupling, particularly for the driving of rpm regulators associated with fuel injection pumps Download PDF

Info

Publication number
US3821882A
US3821882A US00328441A US32844173A US3821882A US 3821882 A US3821882 A US 3821882A US 00328441 A US00328441 A US 00328441A US 32844173 A US32844173 A US 32844173A US 3821882 A US3821882 A US 3821882A
Authority
US
United States
Prior art keywords
elastic
coupling
driving
coupling element
driving component
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
US00328441A
Other languages
English (en)
Inventor
F Eheim
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of US3821882A publication Critical patent/US3821882A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/56—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic metal lamellae, elastic rods, or the like, e.g. arranged radially or parallel to the axis, the members being shear-loaded collectively by the total load
    • F16D3/58—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic metal lamellae, elastic rods, or the like, e.g. arranged radially or parallel to the axis, the members being shear-loaded collectively by the total load the intermediate members being made of rubber or like material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
    • F02D1/04—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered by mechanical means dependent on engine speed, e.g. using centrifugal governors

Definitions

  • This invention relates to an elastic rotary coupling, particularly for driving rpm regulators associated with internal combustion engines and is of the type which has coaxially arranged driving and driven components interconnected by means of elastic elements.
  • the latter are disposed in cavities or nests formed by aligned recesses which are provided in the driven and driving components and which have a constant cross section at any point along an axially parallel direction.
  • a known coupling of the aforenoted type comprises two coaxially arranged components and, for the transmission of torque, elliptically shaped elastic members which are disposed in ellipsoid-shaped cavities, each formed of a pair of aligned recesses provided in the coaxial components. Each elastic member entirely fills the cavity in which it is disposed.
  • Couplings of the aforeoutlined type have the purpose to take up in a small space as large forces as possible in such a manner that shocks or impacts generated at the driving side are not transmitted to the driven side. In this manner it is sought to protect the driven side from rapid wear or destruction. It is a further purpose of these couplings to compensate for alignment errors in a simple manner and to dampen oscillations that may appear at the driving side.
  • the elastic coupling elements have a cross-sectional shape of a rectangle, the long sides of which extend substantially tangentially to the direction of rotation. Said rectangle has rounded corners and a depression on each side.
  • Each cavity or nest provided in the coupling components for receiving an elastic coupling element has a greater cross-sectional area than that of the elastic element, so that the latter does not entirely fill the space defined by the nest when the coupling does not rotate.
  • the driven component has in its lateral face adjoining the driving component an additional cavity which has a cross section in the shape of an annular sector.
  • a coupling pin affixed to the driving member projects into the last named cavity and is freely movable therein as a function of the deformation of the elastic elements. It is to be noted that in the particular intended use the torques transmitted by the coupling may remain relatively small, as opposed to the aboveoutlined known structures that are generally used in an environment where the transmission of relatively large torques is necessary.
  • FIG. 1 is a side elevational, partially axially sectional view of a coupling incorporating the invention and FIG. 2 is a sectional view along line IIII of FIG. 1.
  • a driving component 2 formed as a drive shaft surrounded coaxially by a sleeve-like driven component 3-which, at its outer circumference, is provided with a gear 4 meshing with a spur gear 5 of an rpm regulator 6.
  • the driven component 3 includes at its inner lateral face two recesses 7 having a dish-shaped cross section. With each recess 7 there is aligned a recess 8 which has an outwardly concave cross section and which is provided in the outer lateral face of the drive shaft 2.
  • Each aligned recess pair 7, 8 defines a nest which accommodates an elastic couplingelement 9. As it may be well observed in FIG.
  • each elastic coupling element 9 has the approximate shape of an elongated rectangle, the length dimension of which extends generally tangentially to the direction of rotation of the coupling components 2 and 3.
  • the corners of the cross-sectional rectangle are rounded and its sides slightly depressed.
  • the driven component 3 has at its lateral face adjoining the driving component 2 a cavity 10 having a crosssectional shape of an annular sector.
  • a coupling pin 1 l which extends outwardly from the circumferential face of the driving component 2 and projects into the cavity 10.
  • the pin 11 is freely movable between the two side walls of the cavity 10; the exact position of the pin 11 is determined by the extent of deformation of the elastic elements 9.
  • the driving pin 11 is out of contact with either side wall of the cavity 10.
  • the coupling pin 11 arrives into an abutting engagement with the lateral wall of the cavity 10 and thus the driven component 3 continues to be rotated by the driving component 2.
  • Such a continued driving connection despite a failure of the elastic couplingelements is of particular importance in regulators associated with fuel injection pumps.
  • the aforedescribed novel structure has the advantage that the elastic elements are first of all exposed along their longitudinal and diagonal axes to compression and then to shearing stresses.
  • theelastic coupling ele ments 9 are first diagonally compressed as the relative movement between components 2 and 3 begins as the shaft 2 starts to rotate. In this manner a soft coupling engagement is ensured.
  • the outwardly concave configuration of the cross section of the recess 8 maybe provided in a simple manner by a milling operation.
  • An elastic rotary soft coupling arrangement comprising A. a driving component;
  • an elastic coupling element received in said nest and occupying, when in stress-free condition as a result of not rotating, one part of the volume enclosed by said nest, said elastic coupling element having a cross section in the approximate shape of an elongate rectangle having a length dimension oriented approximately tangentially to the direction of rotation of said coupling, said rectangle having rounded corners and slightly depressed sides, and said elastic coupling element being exposed along its longitudinal axis and its diagonal axis to compression and then shearing stresses upon rotation thereof, the small cross-sectional portions of said elastic coupling element being firstly subjected to compression,

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)
US00328441A 1972-03-17 1973-01-31 Elastic rotary coupling, particularly for the driving of rpm regulators associated with fuel injection pumps Expired - Lifetime US3821882A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2212913A DE2212913C3 (de) 1972-03-17 1972-03-17 Elastische Kupplung zum Antrieb von Drehzahlreglern bei Einspritzpumpen

Publications (1)

Publication Number Publication Date
US3821882A true US3821882A (en) 1974-07-02

Family

ID=5839200

Family Applications (1)

Application Number Title Priority Date Filing Date
US00328441A Expired - Lifetime US3821882A (en) 1972-03-17 1973-01-31 Elastic rotary coupling, particularly for the driving of rpm regulators associated with fuel injection pumps

Country Status (7)

Country Link
US (1) US3821882A (enrdf_load_stackoverflow)
JP (1) JPS5828451B2 (enrdf_load_stackoverflow)
DE (1) DE2212913C3 (enrdf_load_stackoverflow)
ES (1) ES412719A1 (enrdf_load_stackoverflow)
FR (1) FR2176335A5 (enrdf_load_stackoverflow)
GB (1) GB1429947A (enrdf_load_stackoverflow)
IT (1) IT973286B (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905208A (en) * 1973-02-09 1975-09-16 Bridgestone Tire Co Ltd Flexible shaft coupling
US3961542A (en) * 1975-01-10 1976-06-08 International Harvester Company Control linkage for hydrostatic transmission
US3998503A (en) * 1974-09-23 1976-12-21 The Boeing Company Elastomeric bearing
US4714448A (en) * 1984-12-27 1987-12-22 Valeo Torsional damper device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443621A1 (fr) * 1978-12-06 1980-07-04 Citroen Sa Dispositif d'entrainement par poulie
FR2557656B1 (fr) * 1983-12-30 1988-05-27 Valeo Dispositif amortisseur de torsion a organe elastique de centrage, notamment pour embrayage de vehicule automobile
FR2575532B2 (fr) * 1983-12-30 1989-03-31 Valeo Dispositif amortisseur de torsion a organe elastique de centrage, notamment pour embrayage de vehicule automobile
JPS62152590U (enrdf_load_stackoverflow) * 1986-03-20 1987-09-28
DE19739334A1 (de) * 1997-09-09 1999-03-25 Kirschey Centa Antriebe Drehelastische Wellenkupplung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961856A (en) * 1957-01-30 1960-11-29 Int Harvester Co Cog wheel construction
US2993544A (en) * 1958-07-08 1961-07-25 Mcculloch Corp Propeller mounting for outboard motors
US3687479A (en) * 1967-11-07 1972-08-29 Kober Alois Ag Mas Fab Wheel axle for single-axle vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH357590A (de) * 1958-01-31 1961-10-15 Saurer Ag Adolph Federnde Kupplung
JPS454570Y1 (enrdf_load_stackoverflow) * 1965-10-11 1970-03-03
DE1575892A1 (de) * 1967-02-16 1970-07-16 Goedel Gerta Elastische Kupplung
DE1910126A1 (de) * 1969-02-28 1970-09-10 Walzwerktechnik Gmbh & Co Kg Elastische Zahnkupplung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961856A (en) * 1957-01-30 1960-11-29 Int Harvester Co Cog wheel construction
US2993544A (en) * 1958-07-08 1961-07-25 Mcculloch Corp Propeller mounting for outboard motors
US3687479A (en) * 1967-11-07 1972-08-29 Kober Alois Ag Mas Fab Wheel axle for single-axle vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3905208A (en) * 1973-02-09 1975-09-16 Bridgestone Tire Co Ltd Flexible shaft coupling
US3998503A (en) * 1974-09-23 1976-12-21 The Boeing Company Elastomeric bearing
US3961542A (en) * 1975-01-10 1976-06-08 International Harvester Company Control linkage for hydrostatic transmission
US4714448A (en) * 1984-12-27 1987-12-22 Valeo Torsional damper device

Also Published As

Publication number Publication date
IT973286B (it) 1974-06-10
DE2212913A1 (de) 1973-09-27
DE2212913B2 (de) 1980-07-17
JPS5828451B2 (ja) 1983-06-16
GB1429947A (en) 1976-03-31
DE2212913C3 (de) 1981-06-04
FR2176335A5 (enrdf_load_stackoverflow) 1973-10-26
ES412719A1 (es) 1976-01-16
JPS496337A (enrdf_load_stackoverflow) 1974-01-21

Similar Documents

Publication Publication Date Title
US4795402A (en) Resilient shaft coupling
US3821882A (en) Elastic rotary coupling, particularly for the driving of rpm regulators associated with fuel injection pumps
US5452622A (en) Stress dissipation gear
US3667317A (en) Balancer
US3747367A (en) Bellows flexible joint
US3613396A (en) Universal joint
US3427827A (en) Shock joint
US3142972A (en) Misalignment coupling
US2588158A (en) Rubber cushion drive coupling
US3422637A (en) Elastomer drive unit
GB1598908A (en) Freewheel devices
US6809440B2 (en) Space-saving, damping coupling mechanism for worms in geared actuators
GB2040397A (en) Universal joints
US4417734A (en) Shaft seal assembly having universal washer with bores for springs
US2691875A (en) Torsionally resilient coupling
US2891394A (en) Flexible and vibration damping coupling
US5358445A (en) Variable angle torque transmitting coupling device
US3296834A (en) Universal joint
US3895501A (en) Universal joint
US4527986A (en) Resilient anti-backlash shaft coupling
US5382194A (en) Plug-in axially and angularly yieldable toothed coupling for transmitting torque
US3217517A (en) Cross-keyed coupling device
US3473349A (en) Elastic shaft coupling
US5810668A (en) Torsional shock isolated fuel pump drive gear assembly
US3074254A (en) Resilient shaft coupling