BE900497R - Fuel injector for two=stroke IC engine - has injected quantity varying with air flow from precompression casing - Google Patents

Fuel injector for two=stroke IC engine - has injected quantity varying with air flow from precompression casing

Info

Publication number
BE900497R
BE900497R BE0/213587A BE213587A BE900497R BE 900497 R BE900497 R BE 900497R BE 0/213587 A BE0/213587 A BE 0/213587A BE 213587 A BE213587 A BE 213587A BE 900497 R BE900497 R BE 900497R
Authority
BE
Belgium
Prior art keywords
casing
chamber
engine
stroke
precompression
Prior art date
Application number
BE0/213587A
Other languages
French (fr)
Original Assignee
Antoine Hubert
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 Antoine Hubert filed Critical Antoine Hubert
Priority to BE0/213587A priority Critical patent/BE900497R/en
Application granted granted Critical
Publication of BE900497R publication Critical patent/BE900497R/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/107—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive pneumatic drive, e.g. crankcase pressure drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/12—Feeding by means of driven pumps fluid-driven, e.g. by compressed combustion-air

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

A duct connects the casing and the chamber and another duct connects the chamber and the cylinder. The first duct has a valve that allows air to flow from the casing to the chamber but prevents its return, while the orifice of the second duct in the cylinder is masked by the piston skirt during piston lift to prevent fuel injection at the wrong time.

Description

       

  ..- '.,- ... 

  
 <EMI ID=1.1> 

  
d'injection de carburant pour moteur à deux temps", délivré à

  
 <EMI ID=2.1> 

  
Perfectionnement au dispositif d'injection de carburant pour moteur

  
à deux temps.

  
Ce perfectionnement reprend un moyen de régler la quantité d'essence à injecter en fonction de la quantité d'air passant du carter 3 de précompr-
-ession dans le cylindre 1 du moteur.

  
Une exécution de ce moyen est représentée figure 9.

  
 <EMI ID=3.1> 

  
arrive à la chambre 12 par le canal 62,en soulevant le clapet 60 .

  
L'autre face de la membrane reçoit la pression Patm de la chambre 11, qui est la pression atmosphérique.

  
lors du balayage,le clapet 60 se referme et la chambre 12 se vide dans

  
le cylindre 1 par le canal 61 jusqu'à ce que la pression soit la même

  
 <EMI ID=4.1> 

  
Autrement dit,l'avancée maximum du piston 20 est variable et est proportionnelle à P1-Patm '

  
La course totale du piston 20,donc la quantité injectée,est donc propor- <EMI ID=5.1> 

  
Pendant la remontée du piston 2 dans le cylindre 1 ,on évite toute

  
avancée supplémentaire du piston 20 et donc toute injection intempestive en masquant le canal 61 avec la jupe du piston 2 et en obturant le canal

  
62 par le clapet automatique 60.

  
Une variante d'exécution serait que le canal 62 avec son clapet 60 débouche dans le canal 61 qui seul aboutit à la chambre 12 . 

  
 <EMI ID=6.1> 

REVENDICATIONS

  




  ..- '., - ...

  
 <EMI ID = 1.1>

  
fuel injection for two-stroke engine ", issued to

  
 <EMI ID = 2.1>

  
Improvements to the engine fuel injection system

  
in two stages.

  
This improvement includes a means of adjusting the quantity of petrol to be injected as a function of the quantity of air passing from the casing 3 of precompression.
-ession in cylinder 1 of the engine.

  
An execution of this means is shown in FIG. 9.

  
 <EMI ID = 3.1>

  
arrives at chamber 12 via channel 62, lifting the valve 60.

  
The other face of the membrane receives the pressure Patm from the chamber 11, which is atmospheric pressure.

  
during scanning, the valve 60 closes and the chamber 12 empties into

  
cylinder 1 through channel 61 until the pressure is the same

  
 <EMI ID = 4.1>

  
In other words, the maximum advance of the piston 20 is variable and is proportional to P1-Patm '

  
The total stroke of the piston 20, therefore the quantity injected, is therefore proportional to <EMI ID = 5.1>

  
During the ascent of the piston 2 in the cylinder 1, any

  
additional advance of the piston 20 and therefore any untimely injection by masking the channel 61 with the skirt of the piston 2 and closing the channel

  
62 by the automatic valve 60.

  
An alternative embodiment would be that the channel 62 with its valve 60 opens into the channel 61 which alone leads to the chamber 12.

  
 <EMI ID = 6.1>

CLAIMS

  

Claims (1)

Dispositif selon la revendication 1 du brevet 897407 comprenant Device according to claim 1 of patent 897407 comprising un canal(62)de raccordement entre le carter(3)et la chambre(12) et a channel (62) for connection between the casing (3) and the chamber (12) and un canal (61)de raccordement entre la chambre(12) et le cylindre(1), a channel (61) for connection between the chamber (12) and the cylinder (1), le canal(62)étant muni d'un clapet(60)permettant le passage de l'air the channel (62) being provided with a valve (60) allowing the passage of air du carter(3)vers la chambre(12), mais interdisant le passage de la chambre from the casing (3) to the chamber (12), but preventing the passage of the chamber (12) vers le carter (3);l'orifice du canal (61)dans le cylindre(1) (12) towards the casing (3); the orifice of the channel (61) in the cylinder (1) étant masqué par la jupe du piston(2)pendant la remontée de celui-ci. being masked by the skirt of the piston (2) during the ascent thereof.
BE0/213587A 1984-09-05 1984-09-05 Fuel injector for two=stroke IC engine - has injected quantity varying with air flow from precompression casing BE900497R (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE0/213587A BE900497R (en) 1984-09-05 1984-09-05 Fuel injector for two=stroke IC engine - has injected quantity varying with air flow from precompression casing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE900497 1984-09-05
BE0/213587A BE900497R (en) 1984-09-05 1984-09-05 Fuel injector for two=stroke IC engine - has injected quantity varying with air flow from precompression casing

Publications (1)

Publication Number Publication Date
BE900497R true BE900497R (en) 1985-01-02

Family

ID=25654217

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/213587A BE900497R (en) 1984-09-05 1984-09-05 Fuel injector for two=stroke IC engine - has injected quantity varying with air flow from precompression casing

Country Status (1)

Country Link
BE (1) BE900497R (en)

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: ANTOINE HUBERT

Effective date: 19850905