WO2012048312A8 - Improved sealing of sleeve valves - Google Patents

Improved sealing of sleeve valves Download PDF

Info

Publication number
WO2012048312A8
WO2012048312A8 PCT/US2011/055503 US2011055503W WO2012048312A8 WO 2012048312 A8 WO2012048312 A8 WO 2012048312A8 US 2011055503 W US2011055503 W US 2011055503W WO 2012048312 A8 WO2012048312 A8 WO 2012048312A8
Authority
WO
WIPO (PCT)
Prior art keywords
valve
sleeve
combustion engine
internal combustion
actuation mechanism
Prior art date
Application number
PCT/US2011/055503
Other languages
French (fr)
Other versions
WO2012048312A1 (en
Inventor
James M. Cleeves
Michael Hawkes
Original Assignee
Pinnacle Engines, 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.)
Filing date
Publication date
Application filed by Pinnacle Engines, Inc. filed Critical Pinnacle Engines, Inc.
Priority to CN201180059309.2A priority Critical patent/CN103261590B/en
Priority to US13/270,192 priority patent/US9016255B2/en
Publication of WO2012048312A1 publication Critical patent/WO2012048312A1/en
Publication of WO2012048312A8 publication Critical patent/WO2012048312A8/en

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
    • F01L5/00—Slide valve-gear or valve-arrangements
    • F01L5/04—Slide valve-gear or valve-arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • F01L5/06—Slide valve-gear or valve-arrangements with cylindrical, sleeve, or part-annularly shaped valves surrounding working cylinder or piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/02—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons
    • F01B7/04—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons acting on same 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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/04—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke
    • F02B25/06—Engines having ports both in cylinder head and in cylinder wall near bottom of piston stroke the cylinder-head ports being controlled by working pistons, e.g. by sleeve-shaped extensions thereof
    • 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
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/08—Engines with oppositely-moving reciprocating working pistons
    • 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
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F02B75/282—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders the pistons having equal strokes

Abstract

A sleeve valve with a valve body that at least partially encircles at least one piston that moves in a reciprocating manner can, at least partially define with the at least one piston a combustion chamber of an internal combustion engine. A valve actuation mechanism can move the sleeve valve between an open position and a closed position to control flow through a port of the internal combustion engine. The sealing edge of the sleeve valve can be urged against a valve seat by an urging force generated by the valve actuation mechanism when the sleeve valve is moved to the closed position. At least one of the sleeve valve and the valve seat can include a valve assistance feature that assists the valve actuation mechanism in resisting forces generated by the internal combustion engine in opposition to the urging force. Related articles, systems, and methods are described.
PCT/US2011/055503 2010-10-08 2011-10-08 Improved sealing of sleeve valves WO2012048312A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201180059309.2A CN103261590B (en) 2010-10-08 2011-10-08 The telescoping valve sealing improved
US13/270,192 US9016255B2 (en) 2010-10-08 2011-10-10 Sealing of sleeve valves

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39151910P 2010-10-08 2010-10-08
US61/391,519 2010-10-08

Publications (2)

Publication Number Publication Date
WO2012048312A1 WO2012048312A1 (en) 2012-04-12
WO2012048312A8 true WO2012048312A8 (en) 2012-09-20

Family

ID=44802452

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/055503 WO2012048312A1 (en) 2010-10-08 2011-10-08 Improved sealing of sleeve valves

Country Status (2)

Country Link
CN (1) CN103261590B (en)
WO (1) WO2012048312A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015173411A1 (en) * 2014-05-15 2015-11-19 Fev Gmbh Positioning the switching element for a mechanically switched vcr connecting rod
JP6887513B2 (en) * 2017-09-26 2021-06-16 株式会社山田製作所 Valve device
US10844758B2 (en) * 2019-01-22 2020-11-24 Caterpillar Inc. Engine and gas exchange valve with under-head fillet contoured for chordal stress mitigation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR436711A (en) * 1911-01-30 1912-04-03 Robert Esnault Pelterie Two-stroke combustion engine with controlled cylindrical barrel distribution
FR715366A (en) * 1930-08-09 1931-12-02 Improvements to thermal engines
DE643470C (en) * 1935-02-06 1937-04-08 Ernst Schmid Internal combustion engine
DE671919C (en) * 1935-05-17 1939-02-18 Werner Howald Dipl Ing Working cylinder for two-stroke internal combustion engines with pipe slide control
US5623894A (en) * 1995-11-14 1997-04-29 Caterpillar Inc. Dual compression and dual expansion engine
US7559298B2 (en) * 2006-04-18 2009-07-14 Cleeves Engines Inc. Internal combustion engine
US8573178B2 (en) * 2009-02-24 2013-11-05 Pinnacle Engines, Inc. Sleeve valve assembly

Also Published As

Publication number Publication date
WO2012048312A1 (en) 2012-04-12
CN103261590A (en) 2013-08-21
CN103261590B (en) 2015-12-02

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