US3548964A - Device for the limitation of the movements of an elastically suspended drive unit - Google Patents

Device for the limitation of the movements of an elastically suspended drive unit Download PDF

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Publication number
US3548964A
US3548964A US736811A US3548964DA US3548964A US 3548964 A US3548964 A US 3548964A US 736811 A US736811 A US 736811A US 3548964D A US3548964D A US 3548964DA US 3548964 A US3548964 A US 3548964A
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US
United States
Prior art keywords
abutment
drive unit
elastic
engine
limitation
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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
US736811A
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English (en)
Inventor
Heinz Krauss
Korb Kreis
Wolfgang Sautter
Uwe Ligniez
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Daimler Benz AG
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Daimler Benz AG
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Publication date
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
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Publication of US3548964A publication Critical patent/US3548964A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/12—Arrangement of engine supports
    • B60K5/1291—Supports comprising stoppers

Definitions

  • the present invention relates to a device for the stroke limitation of an elastically suspended drive unit. Stops for the stroke limitation were arranged heretofore laterally of the engine with as large as possible a lever arm' with respect to the engine longitudinal axis in order to absorb the torques and torque fluctuations occurring during operation, and were so adjusted that they came into abutment under the torque. As a result thereof, humming'noises occurred in the vehicle interior by reason of the sound transmission, which considerably impaired the driving comfort.
  • the elastic stop or stops are so arranged in or nearly within a vertical longitudinal center plane of the unit that in the vertical direction they come'into abutment after a limited free oscillation or deflection path but do not come into abutment in the direction of rotation about the longitudinal axis of the unit, i.e., in particular under the effect of the engine torque.
  • a noise or sound transmission as with the prior art types of constructions used heretofore, operating, for example, with engine movement shock absorbers or engine mounting rods is avoided in the state of quiescence of the unit by reason of the free swinging or pivot path.
  • the arrangement according to the present invention additionally causes considerably smaller costs with the same reduction of engine paths.
  • the elastic stop or stops may be located within a vertical transverse plane extending through the center of gravity of the drive unit, i.e., below or above the center of gravity.
  • the-stops or abutments are arranged in two transverse planes, in particular at the forward and at the rear end of the unit, approximately'in a vertical plane containing the engine longitudinal axis and below the engine longitudinal axis.
  • a stop or abutment member freely adjustable into a center position is provided for the limitation of the'free swinging or deflection path.
  • the free swinging or deflection path can be selected differently and may be nearly zero in the limit case. It has been found as particularlyadvantageous if the free swinging or deflection path of the engine unit inrelatio'n to the remaining vehicle is larger in the downward direction (for example, 3 to mm.) than in the upward direction (for example, 0.5 to 2 mm.).
  • the elastic stop surfaces or abutments elements may be arranged at the abutment part or at the counterabutment part or possibly also at both parts.
  • the freely adjustable abutment part or parts areconnected without play with one of the parts to be supported in a limited manner, for example, with the engine unit, and are connected with the other of these pans to be supported, for example, with a vehicle part, by means of elastic elements having slight resistance in the vertical direction whereby the lastmentioned part is provided with counterabutment elements, against which the abutment part or parts rest after traversing the free swinging or deflection path.
  • the connection with the first-mentioned part may take place, for example, by means of connecting links or the like provided with adjusting means.
  • lateral elastic web elementsof rubber or the like serve for the connection with slight resistance with the second-mentioned part, which enable a free swinging and selfadjustment of the abutment part in the vertical direction.
  • Such types of weblike elements are also particularly advantageous when the abutment part itself consists completely or nearly completely of rubber or similar material.
  • a further yieldingness for example, a universal yieldingness can be interposed between the elastic abutments and'one of the parts to be mutually supported.
  • the rubber forming the abutments may be provided at the abutment surfaces with a layer of suitable, known synthetic resinous material in order that it is protected against premature wear by the universal movements (stirring movements) occurring during the operation between the engine drive unit and the vehicle part.
  • a further object of the present invention resides in a device for limiting the strokes of an elastically suspended drive unit which considerably improves the driving comfort.
  • a still further object of the present invention resides in an engine unit suspension of the type described above which permits the attainment of a favorable play with possible subsequent readjustment.
  • FIG. 1 is a schematic side elevational view of the overall arrangement of an engine drive unit in accordance with the present invention
  • FIG. 2 is a side elevational view, partly in cross section and on an enlarged scale, of a stroke-limiting arrangement in accordance with the present invention, corresponding approximately to the forward stroke-limiting device of FIG. 1; 7
  • FIG. 3 is a side elevational view of FIG. 2, partly in cross section, taken along line 3-3 of FIG. 4;
  • FIG. 4 is a cross-sectional view, taken along line 4-4 of FIG.
  • FIG. 5 is a cross-sectional view of a modified embodiment of a stroke-limiting device according to the present invention with an elastic connection between the stroke-limiting element and the engine unit, taken along line 55 of FIG. 6;
  • FIG. 6 is a side elevational view of the device of FIG. 5;
  • FIG. 7 is a partial cross-sectional view of a modified embodiment of the arrangement of FIGS. 5 and 6;
  • FIG. 8 is a cross-sectional view through a still further modified embodiment of a stroke-limiting device according to the present invention with simultaneous rear support of the engine unit, taken along line 8-8 of FIG. 9;
  • FIG. 9 is a cross-sectional view taken along line 9-9 of FIG. 8.
  • the engine unit generally designated therein by reference numeral 10 which consists of the engine 11, of the clutch housing 12, and of the change speed gear 13, is suspended at the vehicle superstructure in a known manner, not illustrated in detail in FIG. 1, within elastic bearings, for example, by means of two laterally arranged forward rubber bearings and one rearward rubber bearing arranged, for instance, at the rear end of the change speed transmission, in particular in such a manner that the engine unit 10 is able to swing or pivot about a longitudinal axis which is disposed in the vertical longitudinal center plane containing the crankshaft axis.
  • the longitudinal pivot axis can be disposed thereby in the main inertia axis of the drive engine, i.e., can extend through the center of gravity S thereof, either horizontally or at an inclination or also more or less below or above the center of gravity.
  • the vertical movement of the drive unit caused in particular by unevenesses of the road surface is limited in one, two or three points, A, B, C with free movability by the stroke-limiting devices generally designated by reference numerals 14, and 16, respectively.
  • the limitation in the forward point A takes place, for example, at a forward crossbearer 17, the limitation in point B at a rearward crossbearer 18 of a so-called drive stool which is elastically connected with the remainder of the vehicle frame or vehicle body, and the limitation in point C at a frame tubular member 19 which accommodates, for example, the change speed gear 13 and the cardan shaft 20 and is fiangedly conhected to the change speed gear 13.
  • a stroke limitation in all three points is not necessary. Under certain circumstances, a limitation within the center point B approximately below the center of gravity S suffices. However, a limitation in two points is more appropriate, particularly in the points A and C, possibly also in points A and B or in points B and C or in two other points separated from each other by as large as possible a distance in the longitudinal direction of the engine.
  • FIGS. 2 to 4 illustrate a stroke-limiting device corresponding approximately to that at point A in FIG. 1.
  • a connecting member 22 of the stroke-limiting device is rigidly secured, for example, by means of bolts 23, by welding or the like at a bearer member 21 of the engine 11.
  • a square or rectangular guide part 25 of the steel core 26 is inserted in a vertical slot 24 of the connecting element 22 so as to be adjustable in the vertical direction.
  • a threaded bolt 27 thereby clamps together the steel core 26 and the connecting member 22 in the adjusted position.
  • the steel core 26 is surrounded by a rubber cushion 28 which is additionally connected adheringly by means of webs 29 with the U-shapedstructural steel members 30-as also appropriately with the 'steel core 26-by vulcanization or the like.
  • the structural steel members 30 are connected by means of bolts 31, by welding or the like with the crossrails 32 and 33 which, together with the structural elements 30 surround the rubber cushion 28 in a framelike manner and, for example, in their turn are threadably secured at the forward driving stool crossbearer 17 or form a part thereof.
  • the rubber cushion 28 is provided with protective and reinforcing members 34a, 35a, thereby eliminating premature wearing of the rubber surface by the action of friction on the parts of the crossrails 32, 33.- I 1
  • the connection between the rubber cushion 28 andthe engine ll. is realized in this embodiment by a connecting element 220 which is elastically connected with the engine 11.
  • the elastic connection takes place by meansrof two: ring-shaped rubber discs 36 and 37 which are interposed between a metal disc 38 rigidly connected with the upper end of the connecting elevehicle or the respective vehicle part or driving stool part 17.
  • the driving unit deflects in the vertical direction either downwardly or upwardly relative to the vehicle, the abutment member 26, 28 after traversing the free deflection path e, or e is pressed by means of the connecting member 22 against the crossrails 32 or 33 effective as counter abutment members, and the rubber or similar elastic material is deformed whereby thelateral webs 29 maintain the connection with the structural parts 30 or with the vehicle part 17 without opposing any significant resistance to the vertical movement of the abutment part 26, 28.
  • the abutment part 26, 28 After termination of the deflection, the abutment part 26, 28 returns into its noise-insulating center position in which is devoid of any contact due to the play at e, and e
  • FIGS. 5 and 6 a modified embodiment of the present invention is illustrated, and more particularly, for example, in conjunction with a stroke-limiting arrangement approximately at the place B of FIG. 1.
  • the same parts as those in FIGS. 2 to 4 are again designated with the same reference numerals.
  • FIG. 7 a modified embodiment of the arrangement shown in FIGS. 5 and 6 is disclosed.
  • the counterabutrnent part consisting of structural steel elements 30 and of the rails 32 and 33 is secured, for example, by means of bolts 42 at the crossbearer 18 of a driving stool or other vehicle part.
  • FIGS. 8 and 9 illustrate an embodiment which is particularly suitable for a stroke limitation at the rear end of the drive unit, i.e., at the rear end of the change speed transmission, approximately at the point C.
  • An approximately trapezoidally shaped, ringlike outer abutment part 45 is secured at a rearwardly extending arm43 of the drive unit or change speed transmission housing by means of a bolt 44; rubber cushions 46 and 47 are secured by vulcanizing at the lower and upper inner surfaces of the outer abutment part 45. Furthermore, an inner abutment part 48 is supported by the outer abutment part 45 by means of lateral rubber webs 49 which are adheringly and securely connected by vulcanization with both the outer as also the inner abutment part.
  • the inner abutment part 48 is adjustable by a crossbolt 50, possibly in the direction of height and is connected by clamping or the like with a U-shaped structural part 51 which, in its turn, is secured at a crossbearer52'in the vehicle frame, of the body or the like by welding or in a similar, known manner.
  • an inverse arrangement may also be provided in such a manner that the inner abutment part 48 is connected with the drive unit and the outer abutment part 45 with the vehicle, for example, with the body frame, driving stool or the like.
  • the abutment device may serve simultaneously or the usual elastic bearing support of the drive unit in the vehicle in that, for example, the outer abutment part 45 connected with the drive unit is supported on the crossbearer 52 or the like by means of obliquely arranged rubber cushions 53 in such a manner that the abutment part 45 or the drive unit is able to pivot under the engine torque about a longitudinal axis extending through the point P.
  • An arrangement in a vehicle for the stroke limitation of an elastically suspended drive unit having a longitudinal pivot axis comprising:
  • a plurality of elastic abutment means operatively associated between the drive unit and the vehicle, and located at a distance with respect to the longitudinal pivot axis;
  • said elastic abutment means being located at least approximately in a vertical longitudinal plane of the drive unit so as to provide relative movement in the vertical direction in case of vertical impacts and relative movement in an approximately horizontal direction in case of rotary oscillations about the longitudinal pivotaxis; said elastic abutment means having alimited free deflection path between the drive unit and the vehicle;
  • each elastic abutment means is arranged above the center of gravity point of the drive unit.
  • each elastic abutment means is arranged below the center of gravity point of the drive unit.
  • said mounting means includes at least one freely adjustable abutment part which is operatively connected in the vertical direction substantially without play with one of the two parts to be supported in a limited manner and is operatively connected with the other of the parts-by elastic means offering slight resistance in the vertical direction, and wherein said other part includes counterabutment means against which the first-mentioned abutment part abuts after traversing the free deflection path.
  • connection between said connecting means with the abutment part is vertically adjustable and the vertical adjustment is obtained by means of an elongated aperture and clamping bolt means.
  • At least one rubber cushion means provided with rigidly metallic core means is provided as abutment part carrying the elastic abutslight resistance in the vertical direction
  • said other part includes an outer abutment part substantially surrounding said inner abutment part, said outer abutment part being provided with said elastic abutment means against which the inner abutment part abuts after traversing the free deflection path.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Vibration Prevention Devices (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
US736811A 1967-06-15 1968-06-13 Device for the limitation of the movements of an elastically suspended drive unit Expired - Lifetime US3548964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1630300 1967-06-15

Publications (1)

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US3548964A true US3548964A (en) 1970-12-22

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US736811A Expired - Lifetime US3548964A (en) 1967-06-15 1968-06-13 Device for the limitation of the movements of an elastically suspended drive unit

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US (1) US3548964A (enrdf_load_stackoverflow)
JP (1) JPS5145723B1 (enrdf_load_stackoverflow)
FR (1) FR1569240A (enrdf_load_stackoverflow)
GB (1) GB1206335A (enrdf_load_stackoverflow)
SE (1) SE353680B (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705701A (en) * 1971-11-11 1972-12-12 Theodore C Hunt Safety motor mount
US3731896A (en) * 1972-01-07 1973-05-08 Gen Motors Corp Engine mount assembly
US4076194A (en) * 1976-10-07 1978-02-28 Caterpillar Tractor Co. Snubbed pad resilient mount
FR2405153A1 (fr) * 1977-10-07 1979-05-04 Mtu Friedrichshafen Gmbh Dispositif de fixation d'un equipement moteur sur le chassis d'un vehicule
US4364682A (en) * 1981-10-15 1982-12-21 Scm Corporation Acoustic member mounting means for use in typewriters
JPS5951231U (ja) * 1983-04-16 1984-04-04 本田技研工業株式会社 防振ゴム装置
US5094425A (en) * 1990-04-27 1992-03-10 Paccar Inc. Engine mounting arrangement
US5174541A (en) * 1991-06-06 1992-12-29 Chrysler Corporation Rotatable transmission mount
US5718407A (en) * 1995-09-14 1998-02-17 Hyundai Motor Company Power unit mounting system
US20060202099A1 (en) * 2005-02-04 2006-09-14 Stribling David V Kit and method for a universal transmission crossmember for vintage vehicles
US20090096142A1 (en) * 2007-10-16 2009-04-16 Dtr Co., Ltd. Transmission mount for car
US8523136B2 (en) 2011-11-30 2013-09-03 Cnh America Llc Engine mount assembly and mounting system for a vehicle
US20150028179A1 (en) * 2011-03-11 2015-01-29 Ebm-Papst Landshut Gmbh Vibration damping receptacle device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54100293A (en) * 1978-01-24 1979-08-07 Sharp Corp Electrochromic display unit
JP2657319B2 (ja) * 1989-08-08 1997-09-24 本田技研工業株式会社 自動車のパワーユニット支持装置
FR2755649B1 (fr) * 1996-11-12 1999-01-15 Hutchinson Vehicule automobile comportant un bloc motopropulseur dote d'une suspension a debattement limite

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705701A (en) * 1971-11-11 1972-12-12 Theodore C Hunt Safety motor mount
US3731896A (en) * 1972-01-07 1973-05-08 Gen Motors Corp Engine mount assembly
US4076194A (en) * 1976-10-07 1978-02-28 Caterpillar Tractor Co. Snubbed pad resilient mount
FR2405153A1 (fr) * 1977-10-07 1979-05-04 Mtu Friedrichshafen Gmbh Dispositif de fixation d'un equipement moteur sur le chassis d'un vehicule
US4364682A (en) * 1981-10-15 1982-12-21 Scm Corporation Acoustic member mounting means for use in typewriters
JPS5951231U (ja) * 1983-04-16 1984-04-04 本田技研工業株式会社 防振ゴム装置
US5094425A (en) * 1990-04-27 1992-03-10 Paccar Inc. Engine mounting arrangement
US5174541A (en) * 1991-06-06 1992-12-29 Chrysler Corporation Rotatable transmission mount
US5718407A (en) * 1995-09-14 1998-02-17 Hyundai Motor Company Power unit mounting system
US20060202099A1 (en) * 2005-02-04 2006-09-14 Stribling David V Kit and method for a universal transmission crossmember for vintage vehicles
US20090096142A1 (en) * 2007-10-16 2009-04-16 Dtr Co., Ltd. Transmission mount for car
US20150028179A1 (en) * 2011-03-11 2015-01-29 Ebm-Papst Landshut Gmbh Vibration damping receptacle device
US9206877B2 (en) * 2011-03-11 2015-12-08 Ebm-Papst Landshut Gmbh Vibration damping receptacle device
US8523136B2 (en) 2011-11-30 2013-09-03 Cnh America Llc Engine mount assembly and mounting system for a vehicle
US9033094B2 (en) 2011-11-30 2015-05-19 Cnh Industrial America Llc Engine mount assembly and mounting system for a vehicle

Also Published As

Publication number Publication date
FR1569240A (enrdf_load_stackoverflow) 1969-05-30
GB1206335A (en) 1970-09-23
SE353680B (enrdf_load_stackoverflow) 1973-02-12
JPS5145723B1 (enrdf_load_stackoverflow) 1976-12-04

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