WO1991009213A1 - Dispositif a rotor a evidements pour l'alimentation et la decharge de moteurs endothermiques a quatre temps - Google Patents

Dispositif a rotor a evidements pour l'alimentation et la decharge de moteurs endothermiques a quatre temps Download PDF

Info

Publication number
WO1991009213A1
WO1991009213A1 PCT/IT1989/000083 IT8900083W WO9109213A1 WO 1991009213 A1 WO1991009213 A1 WO 1991009213A1 IT 8900083 W IT8900083 W IT 8900083W WO 9109213 A1 WO9109213 A1 WO 9109213A1
Authority
WO
WIPO (PCT)
Prior art keywords
discharge
rotor
pits
feeding
endothermic
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.)
Ceased
Application number
PCT/IT1989/000083
Other languages
English (en)
Inventor
Renato Ranieri
Valerio D'orazio
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
Priority to PCT/IT1989/000083 priority Critical patent/WO1991009213A1/fr
Publication of WO1991009213A1 publication Critical patent/WO1991009213A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • F01L7/021—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with one rotary valve
    • F01L7/022—Cylindrical valves having one recess communicating successively with aligned inlet and exhaust ports
    • 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
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Definitions

  • the present invention concerns a device consisting of a rotor with one or more pits for each cylinder, for the feeding and discharge of endothermic four-stroke engines.
  • the main inconveniences of such system are: a ) - a strong resistance to the motion of the fluids when the valves are not completely open; b) - a non-linear motion of the fluids; c) - the difficulty of controlling the valves at a high engine revolution number (for those valves with spring recall); d) - the mechanical complexity, especially for those desmodronic valves; e) - relevant damages to the engine in case of out-of-phase of the system, due to the breaking of the operating element.
  • the aim of the device according to the present invention consists of:
  • the device mainly consists of a rotor 1 provided with a pit 2 for each cylinder, shaped in such a way as to obtain the following outlines:
  • the rotor 1 is moved by the driving shaft b y me ans o f a t ransmission e l ement ( chai n , too the d be t , a fall of gears, etc.), with an appropriate reduction relation of the revolution number.
  • a plurality of pits 2 may be provided for each cylinder, so as to allow an adjustment of the advances and delays on the suction and on the discharge.
  • the device according to the present invention may be applied to all four-stroke and Diesel engines.
  • said device may be applied with anyfeeding system with a carburetor with single injector, with multiple injectors and also with suction or compression engines.
  • the application of the device according to the present innvention is immediate in the direct injection engines, and with a particular project of the body of the rotor the application of said device is provided also on pre-chamber engines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

Dispositif servant à l'alimentation et à la décharge des moteurs à quatre temps, et remplaçant le système de soupapes. Le dispositif comporte un rotor (1) commandé par l'arbre menant et muni d'un ou plusieurs évidements pour chaque cylindre, lesdits évidements étant formés pour que l'on puisse obtenir: (1) une communication entre le conduit d'admission et la chambre d'explosion; (2) une isolation entre le conduit d'admission, la chambre d'explosion et le conduit de décharge; et (3) une communication entre la chambre d'explosion et le conduit de décharge.
PCT/IT1989/000083 1989-12-19 1989-12-19 Dispositif a rotor a evidements pour l'alimentation et la decharge de moteurs endothermiques a quatre temps Ceased WO1991009213A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT1989/000083 WO1991009213A1 (fr) 1989-12-19 1989-12-19 Dispositif a rotor a evidements pour l'alimentation et la decharge de moteurs endothermiques a quatre temps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT1989/000083 WO1991009213A1 (fr) 1989-12-19 1989-12-19 Dispositif a rotor a evidements pour l'alimentation et la decharge de moteurs endothermiques a quatre temps

Publications (1)

Publication Number Publication Date
WO1991009213A1 true WO1991009213A1 (fr) 1991-06-27

Family

ID=11331354

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1989/000083 Ceased WO1991009213A1 (fr) 1989-12-19 1989-12-19 Dispositif a rotor a evidements pour l'alimentation et la decharge de moteurs endothermiques a quatre temps

Country Status (1)

Country Link
WO (1) WO1991009213A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19757931A1 (de) * 1997-12-24 1999-07-01 Mannesmann Vdo Ag Vorrichtung zum Rückführen von Abgas und zum Vorheizen eines Abgasreinigers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085418A1 (fr) * 1970-04-20 1971-12-24 Negre Guy

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085418A1 (fr) * 1970-04-20 1971-12-24 Negre Guy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19757931A1 (de) * 1997-12-24 1999-07-01 Mannesmann Vdo Ag Vorrichtung zum Rückführen von Abgas und zum Vorheizen eines Abgasreinigers

Similar Documents

Publication Publication Date Title
US4860716A (en) Multi-cylinder diesel internal combustion engine with low compression ratio in the cylinders
EP0610222A1 (fr) Fonctionnement d'un moteur dans lequel on utilise des evenements de soupapes et d'injection entierement variables
US5213084A (en) Fuel injection system for internal combustion engines
EP1484494A3 (fr) Dispositif et procédé de commande d'injection multiple et de soupapes à distribution variable dans un moteur à injection directe
GB2104969A (en) I c engine starting system
US5803026A (en) Internal combustion engine
JPH01305129A (ja) 内燃機関
EP1086308B1 (fr) Dispositif et procede pour le demarrage d'un moteur a combustion interne
WO1985000410A1 (fr) Moteur a combustion interne
US5031582A (en) Internal combustion engine providing scavenging with combustion chamber volume control
JP2002531765A (ja) ロータリピストン燃焼機関
WO1991009213A1 (fr) Dispositif a rotor a evidements pour l'alimentation et la decharge de moteurs endothermiques a quatre temps
DE3129609A1 (de) Umschaltbare mehrzylinder-brennkraftmaschine
EP0421356B1 (fr) Système d'injection de combustible pour un moteur
SU1668713A1 (ru) Четырехтактный двигатель внутреннего сгорани
US4813395A (en) Two-cycle engine and method of operation
CA2216593A1 (fr) Moteur a combustion interne a deux temps
EP0342893A1 (fr) Moteur à combustion interne
EP0808418B1 (fr) Culasse dans un moteur a combustion interne
US809081A (en) Internal-combustion engine.
RU93010803A (ru) Система впрыска двигателя внутреннего сгорания
AU561484B2 (en) Internal combustion engine
EP2307674A1 (fr) Unité de commande d'un ou plusieurs actionneurs électromagnétiques de soupape de moteur thermique, et différents ensembles de telles unités de commande et de tels actionneurs électromagnétiques
US750478A (en) Ho model
US820891A (en) Gas-engine.

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LU NL SE