GB2291117A - Two-stroke engine installation - Google Patents

Two-stroke engine installation Download PDF

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Publication number
GB2291117A
GB2291117A GB9412740A GB9412740A GB2291117A GB 2291117 A GB2291117 A GB 2291117A GB 9412740 A GB9412740 A GB 9412740A GB 9412740 A GB9412740 A GB 9412740A GB 2291117 A GB2291117 A GB 2291117A
Authority
GB
United Kingdom
Prior art keywords
engine
transmission
oil tank
installation
stroke engine
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Withdrawn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
GB9412740A
Other versions
GB9412740D0 (en
Inventor
Timothy John Bowman
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.)
Ford Motor Co
Original Assignee
Ford Motor Co
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 Ford Motor Co filed Critical Ford Motor Co
Priority to GB9412740A priority Critical patent/GB2291117A/en
Publication of GB9412740D0 publication Critical patent/GB9412740D0/en
Publication of GB2291117A publication Critical patent/GB2291117A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M3/00—Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or for other engines in which lubricant is contained in fuel, combustion air, or fuel-air mixture
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1812—Number of cylinders three
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/20—Multi-cylinder engines with cylinders all in one line

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Details Of Gearings (AREA)

Abstract

The oil tank 18 for providing engine lubricant is arranged between the engine 10 and the vehicle transmission 16. The tank 18 may be a separate rigid component or integrated into the engine block or transmission. <IMAGE>

Description

TWO-STROKE ENGINE INSTALLATION This invention relates to a two-stroke engine installation for use in a motor vehicle.
It is conventional for two-stroke engines to have the engine lubrication oil contained in a separate tank or container from where it is fed to the engine by a piping system for delivery to those parts of the engine requiring lubrication.
According to the present invention, there is provided a two-stroke engine installation in a motor vehicle, the installation including a two-stroke engine, a transmission and an oil tank mounted to the engine and to the transmission.
The oil tank preferably has one end face which is mounted to the engine and an opposite end face which is mounted to the transmission.
Oil communication between the oil tank and the engine block can be through mating galleries formed in the end faces of the tank and of the block.
The size of the oil tank may be such that the overall length of the encineXtransmission assembly is equal to that of a four-stroke engine.
The invention will now be further described, by way of example, with reference to the accompanying drawing which is a schematic Illscration of an engine installation.
The installation shown in the drawing.comprises a threecylinder engine 1O, two road wheels 12 joined by a drive axle 14, a transmission 16 and an oil tank 18.
When the engine 10 is running, its output shaft provides- an input to the transmission 16, and the transmission then transmits the power of the engine to produce rotation of the axle 14 and thus to turn the wheels 12.
Conventionally, the engine 10 is mounted directly to the transmission 16, but in this invention, the engine and the transmission are spaced apart by the width of the oil tank 18. The output shaft from the engine traverses the oil tank to provide a drive input to the transmission.
The tank can be a rigid component bolted or otherwise fixed to the engine block and to the transmission, and therbey forming a rigid unit comprising engine, oil tank and transmission. Alternatively the tank could be integrated into the engine block or the transmission housing.
This arrangement has a number of advantages.
Firstly, it increases the moment of inertia of the power train by displacing the engine and transmission outwards.
This increase in moment of inertia makes it easier to provide adequate engine mounting performance, particularly for a three-cylinder two-stroke engine.
Secondly, positioning the oil tank between the engine and the transmission allows heat from the engine to warm the lubricant in the oil tank and this helps to achieve a rapid rise to engine operating temperature from a cold start.
Thirdly, it is possible to internally vent the tank 18 through the engine's breathing system. This avoids the need for extra pipework or components to vent the oil tank.
Fourthly, oil flow from the tank to the engine and viceversa can be through internal drillings in the casing of the oil tank and of the block for the engine 10. No external pipework is therefore required for this purpose.
Fifthly, it is conventional practice amongst motor manufacturers to offer the same vehicle body shell with different engine capacities. Where the different engines have different overall physical sizes/arrangemnts, packaging can present problems.
By determining the dimensions of the oil tank 18, it is possible to "lengthen" a three-cylinder two-stroke engine so that its size is generally the same as that of a fourcylinder four-stroke engine, so that both variants can be fitted in the same vehicle with minimum change to mounting systems.
A subsidiary consideration which makes this invention useful in reducing the impact of differences between a two-stroke engine and a four-stroke engine is that the oil filler opening for replenishing the engine oil can, as a result of the positioning of the oil tank 18 between the engine and the transmission be located in generally the same position in the engine compartment as the oil filler opening of a conventional four-stroke engine.
Sixthly, the mounting of the oil tank directly adjacent the engine ensures that the vibration of the engine during operation helps to prevent any settling OL the lubricant and promotes homogeneity of the lubricant.

Claims (5)

Claims
1. A two-stroke engine installation in a motor vehicle, the installation including a two-stroke engine, a transmission and an oil tank mounted to the engine and the transmission.
2. An engine installation as climed in Claim 1, wherein the oil tank has one end face which is mounted to the engine and an opposite end face which is mounted to the transmission.
3. An engine installation as claimed in Claim 1 or Claim 2, wherein oil communication between the oil tank and the engine block is through mating galleries formed in the end faces of the tank and of the block.
4. An engine installation as claimed in any preceding claim, wherein the size of the oil tank is such that the overall length of the engine/transmission assembly is equal to that of a four-stroke engine.
5. A two-stroke engine installation substantially as herein described with reference to the accompanying drawing.
GB9412740A 1994-06-24 1994-06-24 Two-stroke engine installation Withdrawn GB2291117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9412740A GB2291117A (en) 1994-06-24 1994-06-24 Two-stroke engine installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9412740A GB2291117A (en) 1994-06-24 1994-06-24 Two-stroke engine installation

Publications (2)

Publication Number Publication Date
GB9412740D0 GB9412740D0 (en) 1994-08-17
GB2291117A true GB2291117A (en) 1996-01-17

Family

ID=10757280

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9412740A Withdrawn GB2291117A (en) 1994-06-24 1994-06-24 Two-stroke engine installation

Country Status (1)

Country Link
GB (1) GB2291117A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1452380A1 (en) * 2003-02-28 2004-09-01 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Drive unit for a motor vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB391279A (en) * 1932-02-18 1933-04-27 New Imp Motors Ltd Improvements in, or relating to, the lubrication of internal combustion engines
GB926644A (en) * 1962-03-13 1963-05-22 Zschopau Motorrad Veb Improvements in or relating to a lubricating system for two-stroke internal combustion engines
GB1003863A (en) * 1963-02-05 1965-09-08 Standard Motor Co Ltd Motor vehicle power transmission system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB391279A (en) * 1932-02-18 1933-04-27 New Imp Motors Ltd Improvements in, or relating to, the lubrication of internal combustion engines
GB926644A (en) * 1962-03-13 1963-05-22 Zschopau Motorrad Veb Improvements in or relating to a lubricating system for two-stroke internal combustion engines
GB1003863A (en) * 1963-02-05 1965-09-08 Standard Motor Co Ltd Motor vehicle power transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1452380A1 (en) * 2003-02-28 2004-09-01 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Drive unit for a motor vehicle

Also Published As

Publication number Publication date
GB9412740D0 (en) 1994-08-17

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Legal Events

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