GB2423963A - Amphibious vehicle power train arrangement - Google Patents

Amphibious vehicle power train arrangement Download PDF

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Publication number
GB2423963A
GB2423963A GB0428055A GB0428055A GB2423963A GB 2423963 A GB2423963 A GB 2423963A GB 0428055 A GB0428055 A GB 0428055A GB 0428055 A GB0428055 A GB 0428055A GB 2423963 A GB2423963 A GB 2423963A
Authority
GB
United Kingdom
Prior art keywords
power train
engine
amphibious vehicle
vehicle power
speed
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.)
Withdrawn
Application number
GB0428055A
Other versions
GB0428055D0 (en
Inventor
Stephen John Briggs
Glen Michael Jeffery
Simon James Longhill
Hans Weekers
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.)
Gibbs Technologies Ltd
Original Assignee
Gibbs Technologies Ltd
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 Gibbs Technologies Ltd filed Critical Gibbs Technologies Ltd
Priority to GB0428055A priority Critical patent/GB2423963A/en
Publication of GB0428055D0 publication Critical patent/GB0428055D0/en
Priority to DE602005026451T priority patent/DE602005026451D1/en
Priority to CNB2005800443795A priority patent/CN100528618C/en
Priority to AU2005317882A priority patent/AU2005317882A1/en
Priority to JP2007547649A priority patent/JP4712815B2/en
Priority to PCT/GB2005/005001 priority patent/WO2006067458A2/en
Priority to US11/793,936 priority patent/US8454398B2/en
Priority to EP05850643A priority patent/EP1833689B1/en
Priority to AT05850643T priority patent/ATE498498T1/en
Priority to KR1020077015989A priority patent/KR101074873B1/en
Priority to RU2007128030/11A priority patent/RU2381912C2/en
Publication of GB2423963A publication Critical patent/GB2423963A/en
Priority to US13/907,714 priority patent/US9764611B2/en
Priority to US15/707,533 priority patent/US10744829B2/en
Priority to US16/992,037 priority patent/US11472245B2/en
Priority to US17/963,064 priority patent/US20230286339A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
    • B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
    • B60F3/0007—Arrangement of propulsion or steering means on amphibious vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
    • B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
    • B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
    • B60F3/003—Parts or details of the vehicle structure; vehicle arrangements not otherwise provided for
    • B60F3/0053—Particular devices for gas circulation, e.g. air admission, cooling, water tightners
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles

Abstract

An amphibious vehicle power train having an engine 2 with an output shaft 4, driving an input member 6 of a variable speed-change transmission. The speed-change transmission, which may be a continuously variable transmission is arranged to drive road wheels through an output member 8. The engine also drives a marine propulsion unit 24. The output member 8 is axially above the input member 6.

Description

* 1 2423963 Amphibious Vehicle Power Train The present invention relates
to amphibious vehicles and in particular to power trains for such vehicles.
S
In one power train layout for an amphibious vehicle, as described in the applicant's co-pending application no. GB0422954.8, the contents of which are incorporated herein by means of reference, an engine is arranged so that its crankshaft drives a gearbox from which road and marine drive outputs are taken. The road drive is turned through an angle of up to 900 by means of a bevel gearbox so as to provide an upwardly angled drive to a continuously variable transmission (CVT) speed change unit of the sort having two pulleys interconnected by a belt, which belt runs in a substantially horizontal plane. The output of the CVT unit then by means of a further substantially vertical shaft drives a differential coupled to the rear road wheels.
A problem with the aforesaid arrangement is that the provision of the CVT unit much above the crankshaft axis tends to cause vibration; while the location of the CVT unit weighing up to say 30kg increases the amphibious vehicle's top weight. This in turn raises the vehicle's centre of gravity and increases its metacentric height, which deleteriously affects vehicle handling on both land and water.
Accordingly, the present invention provides an amphibious vehicle power train as claimed in claim 1.
This improved power train arrangement retains the advantages of the prior arrangement in packaging terms, with reduced vibration and improved weight distribution.
Reference will now be made to embodiments of the invention illustrated in the accompanying drawings, by
way of example only.
Figure 1 is a schematic side elevation of a power train for an amphibious vehicle; Figure 2 is a schematic side elevation of a power train for an amphibious vehicle incorporating a reduction gearbox on the engine output shaft; Figure 3 is a schematic side elevation of an alternative configuration of power train for an amphibious vehicle; and Figure 4 is a schematic plan elevation of the alternative version of the power train as illustrated in Figure 3.
With reference to Figure 1, engine 2 supplies drive via output shaft 4, which may be Connected to an engine crankshaft CVT input member 6 is mounted on the end of the engine output shaft 4, and connected to a CVT output member 8 via drive belt 10. The CVT output member 8 is provided with a CVT output shaft 12, which drives a bevel gearbox 14 driving down to a differential 20 with a vertical input 18.
The marine propulsion unit 24 receives drive via marine driveshaft 22.
Figure 2 illustrates the power drive of Figure 1 with a reduction gearbox 26 provided on engine output shaft 4. This figure also shows a four-wheeldrive system, with drive taken forward from CVT output member 8 through driveshaft 32 to a forward bevel gearbox 34, which in turn drives front wheels (not shown) through differential 40 with vertical input 38.
Figure 3 shows an alternative embodiment of the power train, with the differential 20 placed at the back of the CVT output shaft 12, with driveshafts 26 driving down to wheel driveshaftg 28 by chains or belts 30.
Figure 4 is a schematic plan elevation of the alternative version of the power train as illustrated in Figure 3.
Although a longitudinally mounted "North-south" engine is shown, the transmission layout may in a further embodiment be used with a transverse engine; or even with a vertical crankshaft engine, as is known in marine prior art. Although an engine output shaft separate to an engine crankshaft is shown, said output shaft may be the engine crankshaft; or the prime rotating shaft of an electric motor.
The transmission output shaft 12, as shown in Figure 1, is above the level of the top of the engine; broadly a prime mover; or at least above all rotating parts thereof. The transmission output shaft may be directly above the input shaft, which is the engine output shaft 4, to allow a forward drive shaft 32 to pass above the engine. In a further embodiment, the output shaft may be laterally offset relative to the input shaft, enabling a lower centre of gravity by running the forward drive shaft alongside at least some parts of the prime mover.
In another embodiment, a centre differential is connected to the forward driveshaft 32, to enable speed difference and torque div1sj0 between front and rear axles.
The marine propulsion unit 24 is shown diagrammatically, since it may comprise one or more jet drives. The reduction gearbox 26 is shown as being between the engine and both road and marine drives; but in another embodiment (not shown), it is connected only to the marine drive. In a further embodiment (not shown), the reduction gearbox is connected only to the road drive. Depending on the characteristics of the prime mover chosen, a speed increase gearbox may be used instead; or even a range change gearbox, particularly where all road wheels are driven. Where a CVT is used without a reverse gear, a separate reversing drive may be supplied, as shown in the applicant's co-pending application no.GB0422954. 8 (item 110, figure 6). Clutches or decouplers may be fitted to the road or marine drive, or to both.
As the power train layout described is essentially tall and narrow, it is Particularly suited to a vehicle with passenger seating (not shown) arranged above the power train; more particularly, in line astern. it is also Particularly suited to a vehicle whose road wheels are retractable above the vehicle water line to reduce hydrodynamic drag when the vehicle is used on water. The wheel retraction may be at an angle to the road going position, as shown in the applicant's co-pending application no. GB0422954.8 (figure 1).
- The seating and wheel retraction arrangements described above are particularly suited to a planing vehicle; and especially to a planing vehicle with a deep vee hull.
It will be appreciated that various changes may be made to the above described embodiment without departing from the fundamental inventive concept. For example, the speed-change transmission unit may be a conventional manual gearbox; a semi-automated manual gearbox; or a fully automatic transmission with torque Converter and hydraulic drive, as is well known in road vehicles. The term engine may mean an internal combustion engine, but the transmission layout described could be found equally suitable to an external combustion engine, or indeed to a fuel cell and motor combination

Claims (6)

  1. Claims 1. An amphibious vehicle power train comprising an engine having an
    engine output shaft, a speed-change transmission having an input member and an output member arranged to interact with the input member, a marine propulsion unit, and road wheels, arranged such that road wheels are driven through the speed- change transmission, the speed-change transmission being mounted such that the output member is at a level above the input member in relation to the engine output shaft.
  2. 2. An amphibious vehicle power train as claimed in claim i wherein the speed-change transmission is mounted such that the input member and the output member are at a level above the engine output shaft.
  3. 3. An amphibious vehicle power train as claimed in claims 1 or 2 wherein the speed-change transmission is a continuously variable transmission in which the interaction between input and output members is provided by means of a belt.
  4. 4. An amphibious vehicle power train as claimed in any of the preceding claims, where the input and output members have conical driving and driven surfaces respectively.
  5. 5. An amphibious vehicle power train as claimed in any of the preceding claims wherein a reduction gearbox is provided between the engine and the speed-change transmission or on the engine output shaft.
  6. 6. An amphibious vehicle power train as described herein or as illustrated in any one or more of the accompanying drawings.
GB0428055A 2004-12-22 2004-12-22 Amphibious vehicle power train arrangement Withdrawn GB2423963A (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
GB0428055A GB2423963A (en) 2004-12-22 2004-12-22 Amphibious vehicle power train arrangement
RU2007128030/11A RU2381912C2 (en) 2004-12-22 2005-12-21 Modified transmissions of amphibious vehicles
US11/793,936 US8454398B2 (en) 2004-12-22 2005-12-21 Amphibious vehicle power trains
AT05850643T ATE498498T1 (en) 2004-12-22 2005-12-21 IMPROVEMENTS TO AMPHIBIAN VEHICLE POWERTRAINS AND RELATING THERETO
AU2005317882A AU2005317882A1 (en) 2004-12-22 2005-12-21 Improvements in and relating to amphibious vehicle power trains
JP2007547649A JP4712815B2 (en) 2004-12-22 2005-12-21 Improvements to amphibious powertrains
PCT/GB2005/005001 WO2006067458A2 (en) 2004-12-22 2005-12-21 Improvements in and relating to amphibious vehicle power trains
DE602005026451T DE602005026451D1 (en) 2004-12-22 2005-12-21 IMPROVEMENTS FOR TRANSMISSION LINES OF AMPHIBILE VEHICLES AND THESE
EP05850643A EP1833689B1 (en) 2004-12-22 2005-12-21 Improvements in and relating to amphibious vehicle power trains
CNB2005800443795A CN100528618C (en) 2004-12-22 2005-12-21 Improvements in and relating to amphibious vehicle power trains
KR1020077015989A KR101074873B1 (en) 2004-12-22 2005-12-21 Improvements in and relating to amphibious vehicle power trains
US13/907,714 US9764611B2 (en) 2004-12-22 2013-05-31 Amphibious vehicle power trains
US15/707,533 US10744829B2 (en) 2004-12-22 2017-09-18 Amphibious vehicle power trains
US16/992,037 US11472245B2 (en) 2004-12-22 2020-08-12 Amphibious vehicle power trains
US17/963,064 US20230286339A1 (en) 2004-12-22 2022-10-10 Amphibious vehicle power trains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0428055A GB2423963A (en) 2004-12-22 2004-12-22 Amphibious vehicle power train arrangement

Publications (2)

Publication Number Publication Date
GB0428055D0 GB0428055D0 (en) 2005-01-26
GB2423963A true GB2423963A (en) 2006-09-13

Family

ID=34113029

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0428055A Withdrawn GB2423963A (en) 2004-12-22 2004-12-22 Amphibious vehicle power train arrangement

Country Status (11)

Country Link
US (5) US8454398B2 (en)
EP (1) EP1833689B1 (en)
JP (1) JP4712815B2 (en)
KR (1) KR101074873B1 (en)
CN (1) CN100528618C (en)
AT (1) ATE498498T1 (en)
AU (1) AU2005317882A1 (en)
DE (1) DE602005026451D1 (en)
GB (1) GB2423963A (en)
RU (1) RU2381912C2 (en)
WO (1) WO2006067458A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014084074A1 (en) * 2012-11-30 2014-06-05 三菱重工業株式会社 Amphibious vehicle

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GB2423963A (en) * 2004-12-22 2006-09-13 Gibbs Tech Ltd Amphibious vehicle power train arrangement
GB2441518A (en) 2006-08-24 2008-03-12 Gibbs Tech Ltd An amphibian vehicle having two front wheels and a single rear wheel
US8162704B2 (en) * 2008-10-15 2012-04-24 Allison Transmission, Inc. Amphibious vehicle and engine power control
MD260Z (en) * 2010-04-06 2011-03-31 Артур НИКИШОВ Floating vehicle
GB2495898B (en) * 2011-06-13 2013-09-11 Gibbs Tech Ltd A power train for an amphibian
JP6202709B2 (en) * 2012-11-15 2017-09-27 三菱重工業株式会社 Amphibious vehicle
GB2531076A (en) * 2014-10-10 2016-04-13 Gibbs Tech Ltd Amphibian
JP6636338B2 (en) * 2016-01-08 2020-01-29 三菱重工業株式会社 vehicle
KR101906950B1 (en) * 2016-12-26 2018-12-05 한화지상방산 주식회사 Controller device and control method for amphibious car
US11254341B2 (en) 2017-06-08 2022-02-22 Hendrick Motorsports Performance Group, LLC Tactical transport cart for manual navigation over both topographic and hydrographic terrains
US10654503B1 (en) 2017-06-08 2020-05-19 Hendrick Motorsports Performance Group, LLC Tactical transport cart for manual navigation over both topographic and hydrographic terrains
CN110371202B (en) * 2019-07-25 2020-12-29 赵爱连 Multifunctional vehicle
CN110774115A (en) * 2019-10-30 2020-02-11 福建巨昂电子科技有限公司 Surface grinding and polishing device for production and processing of automobile mold
CN112895825B (en) * 2021-03-17 2022-04-08 哈尔滨工程大学 Multi-mode amphibious movement joint with variable configuration
CN114056016B (en) * 2021-12-22 2022-06-14 广东省智能机器人研究院 Variable-structure underwater propulsion device for flexible transmission of unmanned system

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WO2014084074A1 (en) * 2012-11-30 2014-06-05 三菱重工業株式会社 Amphibious vehicle

Also Published As

Publication number Publication date
US20180065434A1 (en) 2018-03-08
US9764611B2 (en) 2017-09-19
GB0428055D0 (en) 2005-01-26
KR20070090007A (en) 2007-09-04
WO2006067458A3 (en) 2006-12-21
RU2381912C2 (en) 2010-02-20
EP1833689B1 (en) 2011-02-16
US10744829B2 (en) 2020-08-18
AU2005317882A1 (en) 2006-06-29
US20130267132A1 (en) 2013-10-10
DE602005026451D1 (en) 2011-03-31
CN100528618C (en) 2009-08-19
JP4712815B2 (en) 2011-06-29
WO2006067458A2 (en) 2006-06-29
US11472245B2 (en) 2022-10-18
JP2008525265A (en) 2008-07-17
RU2007128030A (en) 2009-02-10
CN101087700A (en) 2007-12-12
EP1833689A2 (en) 2007-09-19
US8454398B2 (en) 2013-06-04
ATE498498T1 (en) 2011-03-15
US20230286339A1 (en) 2023-09-14
US20090004932A1 (en) 2009-01-01
US20210197634A1 (en) 2021-07-01
KR101074873B1 (en) 2011-11-03

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)