WO2008130241A1 - Device for a combustion engine associated with a linearly movable induction coil - Google Patents

Device for a combustion engine associated with a linearly movable induction coil Download PDF

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Publication number
WO2008130241A1
WO2008130241A1 PCT/NO2008/000113 NO2008000113W WO2008130241A1 WO 2008130241 A1 WO2008130241 A1 WO 2008130241A1 NO 2008000113 W NO2008000113 W NO 2008000113W WO 2008130241 A1 WO2008130241 A1 WO 2008130241A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
induction coil
combustion engine
rocker arm
linearly movable
Prior art date
Application number
PCT/NO2008/000113
Other languages
French (fr)
Inventor
Egil Andersen
Original Assignee
Miljø-Produkter As
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 Miljø-Produkter As filed Critical Miljø-Produkter As
Priority to EP08741710A priority Critical patent/EP2134946A4/en
Publication of WO2008130241A1 publication Critical patent/WO2008130241A1/en

Links

Classifications

    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • 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
    • F02B71/00—Free-piston engines; Engines without rotary main shaft
    • 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
    • F02B71/00—Free-piston engines; Engines without rotary main shaft
    • F02B71/04—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1869—Linear generators; sectional generators
    • H02K7/1876—Linear generators; sectional generators with reciprocating, linearly oscillating or vibrating parts
    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F02B63/043—Electric generators using oscillating movement

Definitions

  • This invention relates to a combustion engine associated with a linearly movable induction coil. More particularly it con- cerns a combustion engine comprising a piston and a piston cylinder together with necessary auxiliary systems of a design known per se.
  • the piston is, via the piston rod and a rocker arm, coupled to a linearly movable induction coil cooperating with a fixed mounted permanent magnet, and which thereby is arranged to be able to produce electrical energy when the piston is displaced in the piston cylinder.
  • Otto-engines comprise a piston, which via a piston rod and a crankshaft are coupled to a flywheel.
  • the crankshaft In combustion engines based on this principle, and where the energy is taken out via the crankshaft, the crankshaft is close to its top dead center when the combustion pressure is at its maximum. This unfortunate condition causes the torque acting on the crankshaft, at the first part of the combustion, to be relatively modest .
  • the objective of the invention is to remedy or reduce at least one of the drawbacks of prior art .
  • the objective is achieved in accordance with the invention by the features given in the description below and in the following claims.
  • a combustion engine in accordance with the invention com- prises a piston and a piston cylinder together with the necessary auxiliary systems of a design known per se, and is characterized by the piston via the piston rod and a rocker arm being coupled to a linearly movable induction coil cooperating with a fixed mounted permanent magnet, and which is thereby arranged to produce electric energy when the piston is displaced in the piston cylinder.
  • the permanent magnet which is typically constituted by a ring magnet, but which may be constituted by a number of bar magnets, is fixedly mounted in the combustion engine near the induction coil rocker arm.
  • Neodymium magnets are well suited for this purpose.
  • the induction coil is shaped such that it surrounds the permanent magnet during the whole of the piston stroke.
  • the gen- erated energy can then be collected from the coil in the form of alternating current (AC) with a frequency corresponding to the piston frequency.
  • AC alternating current
  • the engine will be able to produce electricity during all piston strokes.
  • the piston via the piston rod and the rocker arm is coupled to an idle flywheel.
  • More pistons may in a way known per se be coupled to a common rocker arm.
  • the permanent magnet attachments are made of heat insulating material as the magnet output decreases at an upper tempera- ture threshold. Earlier solutions placing the permanent mag- net in the piston itself are influenced by this temperature factor and results in a limited energy yield.
  • the induction coil be the movable part in the induction process, as this will have considerably less weight than the permanent magnet .
  • the weight of the pulsating and energy-producing element is significant for the energy yield.
  • a combustion engine according to the invention provides a relatively simple and efficient way of transforming mechani- cal energy into electrical energy.
  • the engine may be utilized in vehicles where the whole transmission may be replaced by an electric motor in each driving wheel.
  • the engine will be able to work at a frequency giving the best possible combination of power, efficiency and relatively small emissions.
  • Fig. 1 shows a schematic cross-section of a 2 -cylinder combustion engine of the invention, where one of the pistons is at its top dead centre, and the other piston at its bottom dead centre;
  • Fig. 2 shows schematically the same as fig. 1, but here the pistons have moved half a stroke in the cylinder; and Fig. 3 shows schematically the same as figs. 1 and 2, but here 4 cylinders are coupled to a common rocker arm.
  • the flywheel is positioned symbolically.
  • the reference numeral 1 is a multi cylinder combustion engine comprising the piston cylinders 2 and the pistons 4.
  • the pistons 4 are coupled to a flywheel 6 via the piston rods 8, the rocker arm 9 and the flywheel rod 10.
  • the combustion engine 1 is provided with necessary auxiliary systems (not shown) for, among other things, such as fuel sup- ply / exhaust, ignition and cooling.
  • the induction coils 3, surrounding the fixed mounted permanent magnets 5, are attached to the rocker arm 9.
  • the permanent magnets 5 are attached by heat insulating brackets 7 to the engine housing 11.
  • Wires 12 are connecting the induction coils 3.
  • the designations "N” and “S” indicate possible polarizing directions in the permanent magnets 5.

Abstract

Device for a combustion engine (1) comprising a piston (4), a piston cylinder (2), and auxiliary systems of a design known per se, and where the piston (4) via the piston rod (8) and a rocker arm (9) is coupled to a linearly movable induction coil (3) cooperating with a fixedly mounted permanent magnet (5), and which thereby is arranged to be able to produce electric energy when the piston (4) is displaced in the piston cylinder (2).

Description

DEVICE FOR A COMBUSTION ENGINE ASSOCIATED WITH A LINEARLY MOVABLE INDUCTION COIL
This invention relates to a combustion engine associated with a linearly movable induction coil. More particularly it con- cerns a combustion engine comprising a piston and a piston cylinder together with necessary auxiliary systems of a design known per se. The piston is, via the piston rod and a rocker arm, coupled to a linearly movable induction coil cooperating with a fixed mounted permanent magnet, and which thereby is arranged to be able to produce electrical energy when the piston is displaced in the piston cylinder.
Otto-engines comprise a piston, which via a piston rod and a crankshaft are coupled to a flywheel. In combustion engines based on this principle, and where the energy is taken out via the crankshaft, the crankshaft is close to its top dead center when the combustion pressure is at its maximum. This unfortunate condition causes the torque acting on the crankshaft, at the first part of the combustion, to be relatively modest .
This, together with other conditions, contributes to a combustion engine of this type exhibiting a relatively modest efficiency. The objective of the invention is to remedy or reduce at least one of the drawbacks of prior art . The objective is achieved in accordance with the invention by the features given in the description below and in the following claims.
A combustion engine in accordance with the invention com- prises a piston and a piston cylinder together with the necessary auxiliary systems of a design known per se, and is characterized by the piston via the piston rod and a rocker arm being coupled to a linearly movable induction coil cooperating with a fixed mounted permanent magnet, and which is thereby arranged to produce electric energy when the piston is displaced in the piston cylinder.
The permanent magnet, which is typically constituted by a ring magnet, but which may be constituted by a number of bar magnets, is fixedly mounted in the combustion engine near the induction coil rocker arm.
It has turned out that so-called Neodymium magnets are well suited for this purpose.
The induction coil is shaped such that it surrounds the permanent magnet during the whole of the piston stroke. The gen- erated energy can then be collected from the coil in the form of alternating current (AC) with a frequency corresponding to the piston frequency.
The engine will be able to produce electricity during all piston strokes. To maintain an even piston frequency, the piston via the piston rod and the rocker arm is coupled to an idle flywheel. More pistons may in a way known per se be coupled to a common rocker arm.
The permanent magnet attachments are made of heat insulating material as the magnet output decreases at an upper tempera- ture threshold. Earlier solutions placing the permanent mag- net in the piston itself are influenced by this temperature factor and results in a limited energy yield.
It is advantageous to let the induction coil be the movable part in the induction process, as this will have considerably less weight than the permanent magnet . In producing energy from pulsating elements, the weight of the pulsating and energy-producing element is significant for the energy yield.
A combustion engine according to the invention provides a relatively simple and efficient way of transforming mechani- cal energy into electrical energy. Advantageously, the engine may be utilized in vehicles where the whole transmission may be replaced by an electric motor in each driving wheel. The engine will be able to work at a frequency giving the best possible combination of power, efficiency and relatively small emissions.
Using hydrogen as fuel, the pollutive emissions from petrol and diesel fuel may be eliminated.
In the following a non-limiting example of a preferred embodiment illustrated in the accompanying drawings is de- scribed, wherein:
Fig. 1 shows a schematic cross-section of a 2 -cylinder combustion engine of the invention, where one of the pistons is at its top dead centre, and the other piston at its bottom dead centre;
Fig. 2 shows schematically the same as fig. 1, but here the pistons have moved half a stroke in the cylinder; and Fig. 3 shows schematically the same as figs. 1 and 2, but here 4 cylinders are coupled to a common rocker arm. The flywheel is positioned symbolically.
In the drawings the reference numeral 1 is a multi cylinder combustion engine comprising the piston cylinders 2 and the pistons 4. The pistons 4 are coupled to a flywheel 6 via the piston rods 8, the rocker arm 9 and the flywheel rod 10. The combustion engine 1 is provided with necessary auxiliary systems (not shown) for, among other things, such as fuel sup- ply/ exhaust, ignition and cooling.
The induction coils 3, surrounding the fixed mounted permanent magnets 5, are attached to the rocker arm 9. The permanent magnets 5 are attached by heat insulating brackets 7 to the engine housing 11.
Wires 12 are connecting the induction coils 3. In the drawings, the designations "N" and "S" indicate possible polarizing directions in the permanent magnets 5.
When the combustion engine is operating, voltage is induced in the induction coils 3 every time they are displaced along the surrounded permanent magnets 5. Electrical energy may thereby be drawn from the leads 12 as alternating current.

Claims

C L A I M S
1. Device for a combustion engine (1) comprising a piston
(4), a piston cylinder (2), and auxiliary systems of a design known per se , where the lower end portion of the piston rod (8) is connected to a rocker arm (9) which is coupled to a linearly movable induction coil (3) cooperating with a fixed mounted permanent magnet (5) , and which is thereby arranged to be able to produce electrical energy when the piston (4) is dis- placed in the piston cylinder (2), c h a r a c t e r i s e d i n that the induction coil (3) is attached to the end portion of the rocker arm (9) .
2. Device in accordance with claim 1, c h a r a c t e r i s e d i n that the induction coil (3) surrounds the permanent magnet (5) during the whole of the piston stroke.
3. Device in accordance with claim 1, c h a r a c t e r i s e d i n that the piston (4) is coupled to a flywheel (6) via the piston rod (8) , the rocker arm (9) , and the flywheel rod (10) .
4. Device in accordance with claim 1, c h a r a c t e r i s e d i n that temperature insulating brackets (7) are provided between the motor housing
(11) and the permanent magnet (5) .
PCT/NO2008/000113 2007-03-28 2008-03-26 Device for a combustion engine associated with a linearly movable induction coil WO2008130241A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08741710A EP2134946A4 (en) 2007-03-28 2008-03-26 Device for a combustion engine associated with a linearly movable induction coil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20071621 2007-03-28
NO20071621A NO20071621A (en) 2007-03-28 2007-03-28 Combustion engine device assigned to a linearly displaceable induction coil

Publications (1)

Publication Number Publication Date
WO2008130241A1 true WO2008130241A1 (en) 2008-10-30

Family

ID=39875687

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2008/000113 WO2008130241A1 (en) 2007-03-28 2008-03-26 Device for a combustion engine associated with a linearly movable induction coil

Country Status (3)

Country Link
EP (1) EP2134946A4 (en)
NO (1) NO20071621A (en)
WO (1) WO2008130241A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341105A1 (en) * 1983-11-12 1985-05-23 Klaus-Dieter 5620 Velbert Böhnke Induction arrangement for an internal-combustion engine of a motor vehicle
WO1996018053A1 (en) * 1994-12-09 1996-06-13 Richter Technology Limited Rotary/linear converter
DE19943993A1 (en) * 1999-09-14 2001-03-15 Volkswagen Ag Internal combustion engine for motor vehicle, has linear generator with permanent magnet(s) on piston rod moved axially and reciprocally in coil winding when dual piston oscillates
WO2001088353A1 (en) * 2000-05-17 2001-11-22 Caterpillar Inc. Free piston engine with electrical power output

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6046252B2 (en) * 1980-08-28 1985-10-15 富士通株式会社 motor generator
US4708099A (en) * 1985-12-12 1987-11-24 Ekker Frank A Crankless reciprocating internal combustion engine
GB2219671B (en) * 1988-04-26 1993-01-13 Joseph Frank Kos Computer controlled optimized hybrid engine
US6876094B2 (en) * 1999-11-12 2005-04-05 Sarcos, Lc Resonant electrical generation system
GB2358845B (en) * 2000-02-04 2002-03-13 Michael Hawkins Vehicle hybrid drive system and operating method
US6532916B2 (en) * 2001-03-28 2003-03-18 Jack L. Kerrebrock Opposed piston linearly oscillating power unit
DE20305046U1 (en) * 2003-03-27 2004-08-19 Dolmar Gmbh Crank-shaft electrical power generator e.g. for automobile combustion engine, uses permanent magnet as counter-weight for reducing crank-shaft vibrations
US20060130782A1 (en) * 2004-12-17 2006-06-22 Boland David V Engine
CA2645499A1 (en) * 2005-04-14 2006-10-19 Gerald Beaulieu Electromagnetic motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341105A1 (en) * 1983-11-12 1985-05-23 Klaus-Dieter 5620 Velbert Böhnke Induction arrangement for an internal-combustion engine of a motor vehicle
WO1996018053A1 (en) * 1994-12-09 1996-06-13 Richter Technology Limited Rotary/linear converter
DE19943993A1 (en) * 1999-09-14 2001-03-15 Volkswagen Ag Internal combustion engine for motor vehicle, has linear generator with permanent magnet(s) on piston rod moved axially and reciprocally in coil winding when dual piston oscillates
WO2001088353A1 (en) * 2000-05-17 2001-11-22 Caterpillar Inc. Free piston engine with electrical power output

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2134946A4 *

Also Published As

Publication number Publication date
NO325373B1 (en) 2008-04-14
EP2134946A1 (en) 2009-12-23
EP2134946A4 (en) 2010-04-21
NO20071621A (en) 2008-04-14

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