EP2668378A4 - Variable force valve spring - Google Patents

Variable force valve spring

Info

Publication number: EP2668378A4
Authority: EP; European Patent Office
Prior art keywords: valve spring; variable force; force valve; variable; spring
Prior art date: 2011-01-27
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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

EP12739579.6A

Other languages

German (de)

French (fr)

Other versions

EP2668378A1 (en

Inventor

Riccardo Meldolesi

John Schwoerer

Joseph Paturzo

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.)

Scuderi Group Inc

Original Assignee

Scuderi Group Inc

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.)

2011-01-27

Filing date

2012-01-27

Publication date

2014-10-29

2012-01-27 Application filed by Scuderi Group Inc filed Critical Scuderi Group Inc

2013-12-04 Publication of EP2668378A1 publication Critical patent/EP2668378A1/en

2014-10-29 Publication of EP2668378A4 publication Critical patent/EP2668378A4/en

Status Withdrawn legal-status Critical Current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
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
- 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
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
- F01L1/462—Valve return spring arrangements
- F01L1/465—Pneumatic arrangements
- 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
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/10—Connecting springs to valve members
- 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
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
- F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
- F02B33/22—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with pumping cylinder situated at side of working cylinder, e.g. the cylinders being parallel
- 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
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L2003/25—Valve configurations in relation to engine
- F01L2003/258—Valve configurations in relation to engine opening away from cylinder
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49247—Valve lifter making

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Valve Device For Special Equipments (AREA)
Output Control And Ontrol Of Special Type Engine (AREA)
Supercharger (AREA)

EP12739579.6A 2011-01-27 2012-01-27 Variable force valve spring Withdrawn EP2668378A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US201161436739P	2011-01-27	2011-01-27
PCT/US2012/022834 WO2012103404A1 (en)	2011-01-27	2012-01-27	Variable force valve spring

Publications (2)

Publication Number	Publication Date
EP2668378A1 EP2668378A1 (en)	2013-12-04
EP2668378A4 true EP2668378A4 (en)	2014-10-29

Family

ID=46576285

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP12739579.6A Withdrawn EP2668378A4 (en)	2011-01-27	2012-01-27	Variable force valve spring

Country Status (6)

Country	Link
US (1)	US20120192817A1 (en)
EP (1)	EP2668378A4 (en)
JP (1)	JP2014508241A (en)
CN (1)	CN103415677A (en)
CA (1)	CA2825768A1 (en)
WO (1)	WO2012103404A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8776740B2 (en)	2011-01-27	2014-07-15	Scuderi Group, Llc	Lost-motion variable valve actuation system with cam phaser
US8707916B2 (en)	2011-01-27	2014-04-29	Scuderi Group, Inc.	Lost-motion variable valve actuation system with valve deactivation
EP2864600B1 (en)	2012-01-06	2018-08-08	Scuderi Group, Inc.	Lost-motion variable valve actuation system
US9297295B2 (en)	2013-03-15	2016-03-29	Scuderi Group, Inc.	Split-cycle engines with direct injection
CN103437849B (en) *	2013-08-29	2015-10-28	刘军	Valve spring tension-adjusting gear
US10006317B2 (en) *	2015-09-29	2018-06-26	Caterpillar Inc.	Valve actuation system
CN107288699B (en) *	2016-04-11	2023-08-29	浙江师范大学	A Camshaft-less Valve Actuation Mechanism Driven by Piezoelectricity
US12123329B2 (en) *	2022-04-05	2024-10-22	GM Global Technology Operations LLC	Engine valve assembly including detent mechanism configured to increase force biasing valve toward closed position when valve is at or near closed position
DE102022112946A1 (en)	2022-05-23	2023-11-23	Dr. Ing. H.C. F. Porsche Aktiengesellschaft	Methods and devices for valve control

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH06272521A (en) *	1993-03-19	1994-09-27	Mazda Motor Corp	Valve drive for internal combustion engine
US6745738B1 (en) *	2001-09-17	2004-06-08	Richard J. Bosscher	Pneumatic valve return spring
DE102007019916A1 (en) *	2007-04-27	2008-10-30	Volkswagen Ag	Valve for automotive piston engine has an individually adjustable pressure chamber
US20100282225A1 (en) *	2009-05-07	2010-11-11	Gilbert Ian P	Air Supply for Components of a Split-Cycle Engine

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH01115808U (en) *	1988-01-31	1989-08-04
DE4117406A1 (en) *	1991-05-28	1992-12-03	Freudenberg Carl Fa	VALVE DRIVE IN THE CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE
JPH0552103A (en) *	1991-08-21	1993-03-02	Honda Motor Co Ltd	Valve drive system for multi-cylinder internal combustion engine
WO1993022543A1 (en) *	1992-04-27	1993-11-11	Iav - Motor Gmbh	Drive for gas exchange valves, preferably inlet valves of reciprocating internal combustion engines
JPH06159024A (en) *	1992-11-26	1994-06-07	Fuji Heavy Ind Ltd	Air spring type valve system of engine for vehicle
KR0164488B1 (en) *	1994-08-29	1998-12-15	전성원	Device for adjusting valve light using out-door air
US5445119A (en) *	1994-12-09	1995-08-29	Chrysler Corporation	Tappet and shim assembly for internal combustion engine
JPH1172013A (en) *	1997-06-20	1999-03-16	Toyota Motor Corp	Valve train of internal combustion engine and valve train provided with the same
WO2000011336A1 (en) *	1998-08-19	2000-03-02	Diesel Engine Retarders, Inc.	Hydraulically-actuated fail-safe stroke-limiting piston
US6986329B2 (en) *	2003-07-23	2006-01-17	Scuderi Salvatore C	Split-cycle engine with dwell piston motion
SE527373C2 (en) *	2004-02-18	2006-02-21	Cargine Engineering Ab	Method for generating pressure pulses, pressure pulse generator and one with such a piston motor
US6886511B1 (en) *	2004-04-07	2005-05-03	General Motors Corporation	Lost motion assembly for a poppet valve of an internal combustion engine
US7077083B2 (en) *	2004-11-24	2006-07-18	Delphi Technologies, Inc.	Electro-hydraulic lost-motion valve train
JP2006274939A (en) *	2005-03-29	2006-10-12	Toyota Motor Corp	Piston engine
US7353786B2 (en) *	2006-01-07	2008-04-08	Scuderi Group, Llc	Split-cycle air hybrid engine
US7536984B2 (en) *	2007-04-16	2009-05-26	Lgd Technology, Llc	Variable valve actuator with a pneumatic booster

2012
- 2012-01-27 EP EP12739579.6A patent/EP2668378A4/en not_active Withdrawn
- 2012-01-27 CA CA 2825768 patent/CA2825768A1/en not_active Abandoned
- 2012-01-27 US US13/359,532 patent/US20120192817A1/en not_active Abandoned
- 2012-01-27 WO PCT/US2012/022834 patent/WO2012103404A1/en not_active Ceased
- 2012-01-27 JP JP2013551356A patent/JP2014508241A/en active Pending
- 2012-01-27 CN CN2012800126511A patent/CN103415677A/en active Pending

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH06272521A (en) *	1993-03-19	1994-09-27	Mazda Motor Corp	Valve drive for internal combustion engine
US6745738B1 (en) *	2001-09-17	2004-06-08	Richard J. Bosscher	Pneumatic valve return spring
DE102007019916A1 (en) *	2007-04-27	2008-10-30	Volkswagen Ag	Valve for automotive piston engine has an individually adjustable pressure chamber
US20100282225A1 (en) *	2009-05-07	2010-11-11	Gilbert Ian P	Air Supply for Components of a Split-Cycle Engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2012103404A1 *

Also Published As

Publication number	Publication date
CN103415677A (en)	2013-11-27
CA2825768A1 (en)	2012-08-02
WO2012103404A1 (en)	2012-08-02
JP2014508241A (en)	2014-04-03
US20120192817A1 (en)	2012-08-02
EP2668378A1 (en)	2013-12-04

Legal Events

Date	Code	Title	Description
2013-11-01	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2013-12-04	17P	Request for examination filed	Effective date: 20130717
2013-12-04	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2014-04-30	DAX	Request for extension of the european patent (deleted)
2014-10-29	A4	Supplementary search report drawn up and despatched	Effective date: 20140929
2014-10-29	RIC1	Information provided on ipc code assigned before grant	Ipc: F01L 3/10 20060101AFI20140923BHEP
2015-11-06	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
2015-12-09	18D	Application deemed to be withdrawn	Effective date: 20150429

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