GR20080100129A - Camshaft with cams of 180 and 90 degrees celcium and cylinder head with single input-output sleeve - Google Patents

Camshaft with cams of 180 and 90 degrees celcium and cylinder head with single input-output sleeve

Info

Publication number
GR20080100129A
GR20080100129A GR20080100129A GR20080100129A GR20080100129A GR 20080100129 A GR20080100129 A GR 20080100129A GR 20080100129 A GR20080100129 A GR 20080100129A GR 20080100129 A GR20080100129 A GR 20080100129A GR 20080100129 A GR20080100129 A GR 20080100129A
Authority
GR
Greece
Prior art keywords
cams
degrees
camshaft
throttles
input
Prior art date
Application number
GR20080100129A
Other languages
Greek (el)
Other versions
GR1006936B (en
Inventor
Κωνσταντινος Δημητριου Θεοχαρης
Original Assignee
Κωνσταντινος Δημητριου Θεοχαρης
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 Κωνσταντινος Δημητριου Θεοχαρης filed Critical Κωνσταντινος Δημητριου Θεοχαρης
Priority to GR20080100129A priority Critical patent/GR1006936B/en
Publication of GR20080100129A publication Critical patent/GR20080100129A/en
Publication of GR1006936B publication Critical patent/GR1006936B/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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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
    • F01L1/02—Valve drive
    • F01L1/026—Gear drive
    • 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
    • F01L1/28—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
    • 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
    • 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
    • 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
    • F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/08—Modifying distribution valve timing for charging purposes
    • F02B29/083—Cyclically operated valves disposed upstream of the cylinder intake valve, controlled by external means
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0535—Single overhead camshafts [SOHC]

Abstract

Camshaft with cams of 180 ± and 90 ± degrees with cylinder head, with a single input-output sleeve, that is used in internal combustion engines, that consists of a camshaft (1), that has cams of 180 ± degrees (2) that open constantly the valves in the exhaust-intake strokes, while the cams of 90 ± degrees (9) that open the output throttles (9) and the input throttles (8) onlyin the respective exhaust-intake strokes. The throttles block the single input-output sleeve (5) on its ends, transforming it to output sleeve and to input sleeve. Essentially, the work production cycle of Otto is modified, since it is performed only by the input-output throttles (8, 9). Adversely, the valves (6) that seal the combustion chamber (7)follow another (double) timing, since they remain constantly open in the exhaust-intake strokes, namely in the 2 4 of each complete work production cycle in an internal combustion engine. This has practically, more economic engines in manufacture and operation, reduced pollutants and better performances and it also eliminates the inertia phenomenon on the valves and it can be compared only to multi-valve engines.
GR20080100129A 2008-02-29 2008-02-29 Camshaft with cams of 180 and 90 degrees celcium and cylinder head with single input-output sleeve GR1006936B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR20080100129A GR1006936B (en) 2008-02-29 2008-02-29 Camshaft with cams of 180 and 90 degrees celcium and cylinder head with single input-output sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20080100129A GR1006936B (en) 2008-02-29 2008-02-29 Camshaft with cams of 180 and 90 degrees celcium and cylinder head with single input-output sleeve

Publications (2)

Publication Number Publication Date
GR20080100129A true GR20080100129A (en) 2009-09-25
GR1006936B GR1006936B (en) 2010-08-26

Family

ID=40220085

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20080100129A GR1006936B (en) 2008-02-29 2008-02-29 Camshaft with cams of 180 and 90 degrees celcium and cylinder head with single input-output sleeve

Country Status (1)

Country Link
GR (1) GR1006936B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120137A (en) * 2019-12-20 2020-05-08 中国北方发动机研究所(天津) Efficient air exchange mechanism of diesel engine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211013A (en) * 1938-10-04 1940-08-13 George W Perks Valve mechanism
DE3408272A1 (en) * 1984-03-07 1985-09-19 H.Michael 3013 Barsinghausen Piesbergen Valve timing gear in an internal combustion engine
DE9200779U1 (en) * 1992-01-24 1992-07-16 Riepl, Leopold, 7500 Karlsruhe, De
WO1992014040A1 (en) * 1991-02-07 1992-08-20 Piotr Marszalkiewicz The method of a valve timing of a four-stroke internal combustion engine and the valve timing mechanism device of a four-stroke internal combustion engine
DE4439087A1 (en) * 1994-11-02 1995-07-06 Viktor Hammermeister Mono-valve system for engines and compressors
WO2004051057A1 (en) * 2002-11-29 2004-06-17 Hongze Wang A valve mechanism of engine, its cylinder head and its operation method
WO2006080865A2 (en) * 2005-01-24 2006-08-03 Anatoliy Viktorovich Pozdeev Valve-timing gear
US7096838B1 (en) * 2005-04-13 2006-08-29 Sexton Daniel W Reversible four cycle internal combustion engine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211013A (en) * 1938-10-04 1940-08-13 George W Perks Valve mechanism
DE3408272A1 (en) * 1984-03-07 1985-09-19 H.Michael 3013 Barsinghausen Piesbergen Valve timing gear in an internal combustion engine
WO1992014040A1 (en) * 1991-02-07 1992-08-20 Piotr Marszalkiewicz The method of a valve timing of a four-stroke internal combustion engine and the valve timing mechanism device of a four-stroke internal combustion engine
DE9200779U1 (en) * 1992-01-24 1992-07-16 Riepl, Leopold, 7500 Karlsruhe, De
DE4439087A1 (en) * 1994-11-02 1995-07-06 Viktor Hammermeister Mono-valve system for engines and compressors
WO2004051057A1 (en) * 2002-11-29 2004-06-17 Hongze Wang A valve mechanism of engine, its cylinder head and its operation method
WO2006080865A2 (en) * 2005-01-24 2006-08-03 Anatoliy Viktorovich Pozdeev Valve-timing gear
US7096838B1 (en) * 2005-04-13 2006-08-29 Sexton Daniel W Reversible four cycle internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120137A (en) * 2019-12-20 2020-05-08 中国北方发动机研究所(天津) Efficient air exchange mechanism of diesel engine

Also Published As

Publication number Publication date
GR1006936B (en) 2010-08-26

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Legal Events

Date Code Title Description
PG Patent granted
ML Lapse due to non-payment of fees

Effective date: 20110902