GB2310004A - Improvements to engines - Google Patents

Improvements to engines

Info

Publication number
GB2310004A
GB2310004A GB9709331A GB9709331A GB2310004A GB 2310004 A GB2310004 A GB 2310004A GB 9709331 A GB9709331 A GB 9709331A GB 9709331 A GB9709331 A GB 9709331A GB 2310004 A GB2310004 A GB 2310004A
Authority
GB
United Kingdom
Prior art keywords
closure
piston
inlet valves
inlet
top surface
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Withdrawn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
GB9709331A
Other versions
GB9709331D0 (en
Inventor
John Brengle Taylor
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB9709331D0 publication Critical patent/GB9709331D0/en
Publication of GB2310004A publication Critical patent/GB2310004A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0203—Variable control of intake and exhaust valves
    • F02D13/0215—Variable control of intake and exhaust valves changing the valve timing only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/34403—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft
    • F01L1/34406—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using helically teethed sleeve or gear moving axially between crankshaft and camshaft the helically teethed sleeve being located in the camshaft driving pulley
    • 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
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/02—Engines characterised by precombustion chambers the chamber being periodically isolated from its cylinder
    • F02B19/04—Engines characterised by precombustion chambers the chamber being periodically isolated from its cylinder the isolation being effected by a protuberance on piston or cylinder head
    • 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
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0261—Controlling the valve overlap
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D15/00—Varying compression ratio
    • F02D15/04—Varying compression ratio by alteration of volume of compression space without changing piston stroke
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

Inlet and exhaust valve timing is varied in conjunction with reducing the engines compression ratio and increasing drive to the supercharger. Variations include the early opening of one or more exhaust valves and/or closure of one or more inlet valves and/or late closure of one or more inlet valves and/or the closure of one or more inlet valves prior to the end of each induction stroke. Such variations may be implemented using a variable compound timing wheel for a valve operating camshaft wherein the variable timing wheel is particularly adapted to advance or retard valve operation in response to electronic or hydraulic actuation means. The invention further provides for an improved piston for a compression ignition engine particularly adapted so that upon fuel injection and subsequent compression of the air/fuel mixture, the mixture is forced radially outward from the axis of the piston. The piston has a conical upper surface extending radially to the edge of the top surface or partially outwards to the edge of the top surface.
GB9709331A 1994-11-09 1995-10-13 Improvements to engines Withdrawn GB2310004A (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
NZ26488894 1994-11-09
NZ26492394 1994-11-15
NZ26496694 1994-11-21
NZ26497494 1994-11-22
NZ27006894 1994-12-05
NZ27045095 1995-02-03
NZ27049695 1995-02-15
NZ27053195 1995-02-20
PCT/NZ1995/000104 WO1996015362A1 (en) 1994-11-09 1995-10-13 Improvements to engines

Publications (2)

Publication Number Publication Date
GB9709331D0 GB9709331D0 (en) 1997-06-25
GB2310004A true GB2310004A (en) 1997-08-13

Family

ID=27573830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9709331A Withdrawn GB2310004A (en) 1994-11-09 1995-10-13 Improvements to engines

Country Status (5)

Country Link
JP (1) JPH10509494A (en)
AU (1) AU3622495A (en)
DE (1) DE19581354T1 (en)
GB (1) GB2310004A (en)
WO (1) WO1996015362A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7713096A (en) * 1995-11-14 1997-06-05 John Brengle Taylor Improvements in combustion engines
DE102015200517B3 (en) * 2015-01-15 2016-03-03 Ford Global Technologies, Llc Method and system for operating a supercharged internal combustion engine of a motor vehicle
JP2019505731A (en) 2016-01-14 2019-02-28 ノーティラス・エンジニアリング・リミテッド・ライアビリティ・カンパニーＮａｕｔｉｌｕｓ Ｅｎｇｉｎｅｅｒｉｎｇ， ＬＬＣ Improved system and method for a compression ignition engine
WO2018187811A1 (en) * 2017-04-07 2018-10-11 Nautilus Engineering, Llc Improved systems and methods of compression ignition engines

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE569702C (en) * 1931-01-22 1933-02-07 Lanova Akt Ges Injection internal combustion engine with an air reservoir
AU1650253A (en) * 1953-03-03 1953-05-07 Ralph Miller Improvements in or relating to internal combustion engines
US2670595A (en) * 1949-10-19 1954-03-02 Miller Ralph High-pressure supercharging system
FR1479937A (en) * 1966-05-16 1967-05-05 Blackstone & Co Ltd Piston for internal combustion engines
AU6191880A (en) * 1979-08-30 1981-03-05 Societe D'etudes De Machines Thermiques S.E.M.T. Method
JPS57126541A (en) * 1981-01-30 1982-08-06 Mitsubishi Heavy Ind Ltd Cone-shape piston head
GB2133467A (en) * 1983-01-17 1984-07-25 Darren Gale Swanson Four-stroke engine valve timing
SU1183698A1 (en) * 1983-10-18 1985-10-07 Производственное Объединение "Турбомоторный Завод" Им.К.В.Ворошилова Internal combustion engine with compression ignition
DE3728167A1 (en) * 1987-08-24 1989-03-09 Mak Maschinenbau Krupp Heavy oil engine with bowl-in pistons
US5080052A (en) * 1990-03-31 1992-01-14 Aisin Seiki Kabushiki Kaisha Variable valve timing system in an engine having a rotating cam-shaft
WO1992004536A1 (en) * 1990-09-06 1992-03-19 Ab Volvo Penta Supercharged internal combustion engine
US5209194A (en) * 1991-04-26 1993-05-11 Nippondenso Co., Ltd. Variable valve timing apparatus
US5255637A (en) * 1992-04-30 1993-10-26 Ford Motor Company Internal combustion engine with adaptive control of compression ratio
JPH0642316A (en) * 1992-05-29 1994-02-15 Nippondenso Co Ltd Valve timing adjusting device for internal combustion engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07150950A (en) * 1993-11-29 1995-06-13 Hiroyasu Tanigawa Combustion chamber, and combustion method/exhaust method for two cycle internal combustion engine

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE569702C (en) * 1931-01-22 1933-02-07 Lanova Akt Ges Injection internal combustion engine with an air reservoir
US2670595A (en) * 1949-10-19 1954-03-02 Miller Ralph High-pressure supercharging system
AU1650253A (en) * 1953-03-03 1953-05-07 Ralph Miller Improvements in or relating to internal combustion engines
FR1479937A (en) * 1966-05-16 1967-05-05 Blackstone & Co Ltd Piston for internal combustion engines
AU6191880A (en) * 1979-08-30 1981-03-05 Societe D'etudes De Machines Thermiques S.E.M.T. Method
JPS57126541A (en) * 1981-01-30 1982-08-06 Mitsubishi Heavy Ind Ltd Cone-shape piston head
GB2133467A (en) * 1983-01-17 1984-07-25 Darren Gale Swanson Four-stroke engine valve timing
SU1183698A1 (en) * 1983-10-18 1985-10-07 Производственное Объединение "Турбомоторный Завод" Им.К.В.Ворошилова Internal combustion engine with compression ignition
DE3728167A1 (en) * 1987-08-24 1989-03-09 Mak Maschinenbau Krupp Heavy oil engine with bowl-in pistons
US5080052A (en) * 1990-03-31 1992-01-14 Aisin Seiki Kabushiki Kaisha Variable valve timing system in an engine having a rotating cam-shaft
WO1992004536A1 (en) * 1990-09-06 1992-03-19 Ab Volvo Penta Supercharged internal combustion engine
US5209194A (en) * 1991-04-26 1993-05-11 Nippondenso Co., Ltd. Variable valve timing apparatus
US5255637A (en) * 1992-04-30 1993-10-26 Ford Motor Company Internal combustion engine with adaptive control of compression ratio
JPH0642316A (en) * 1992-05-29 1994-02-15 Nippondenso Co Ltd Valve timing adjusting device for internal combustion engine

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Derwent Abs Accession No. 86-117958/18 Class Q52 & SU 1183698 A (TURBOMOTOR NYIZAVOD) 7.10.1985 *
Pats Abs of (M-169) & JP 57 126541 A (MITSUBISHI JUKOGYO KK) 6.8.1982 *
Pats Abs of JP 07 150950 A (HIROYASU et al) 13.6.95 *
Pats Abs. of (M-1608) & JP 06 042316 A (NIPPON DENSO CO.LTD) 15.2.1994 *

Also Published As

Publication number Publication date
JPH10509494A (en) 1998-09-14
AU3622495A (en) 1996-06-06
DE19581354T1 (en) 1997-10-16
GB9709331D0 (en) 1997-06-25
WO1996015362A1 (en) 1996-05-23

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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)