Patent EP0204220A2 successfully refreshed from Google Patents.
EP0204220A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Starting fuel supply system for an internal combustion engine, comprising an electronic injection system
Assignee: Weber SRL
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Filing: 1986-05-22
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Granted: —
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Expires: 2006-05-22
Abstract
Abstract @ A starting fuel supply system for an internal combustion engine (101), comprising an electronic injection system, and processing means (102) which, prior to stroke identification of the engine (101), cause fuel to be supplied ta more than one injector (116), including the injector relative to the cylinder first reaching the ignition point subsequent to such identification, and which has already completed the induction stroke, thus enabling substantially total intake of the fuel injected into the cylinder.
Inventors
- 👤 Michele Scarnera
- 👤 Carlo Conticelli
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 11:25
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/30; F02D41/32; F02D41/36; F02D41/02; F02D41/04; F02D41/06; F02D41/062; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
88 words
1) - A starting fuel supply system for an internal combustion engine (101), comprising an electronic injection system, characterised by the fact that the said system comprises processing means (102) which, prior to stroke identification of the said engine (101), cause fuel to be supplied to more than one injector (116), including the injector relative to the cylinder first reaching the ignition point subsequent to such identification, and which has already completed the induction stroke, thus enabling substantially total intake of the fuel injected into the said cylinder.
Claim 2
Dependent Claim
88 words
1) - A starting fuel supply system for an internal combustion engine (101), comprising an electronic injection system, characterised by the fact that the said system comprises processing means (102) which, prior to stroke identification of the said engine (101), cause fuel to be supplied to more than one injector (116), including the injector relative to the cylinder first reaching the ignition point subsequent to such identification, and which has already completed the induction stroke, thus enabling substantially total intake of the fuel injected into the said cylinder.
Claim 3
Dependent Claim
94 words
2) - A system as claimed in Claim 1, characterised by the fact that the said processing means comprise means (140, 141, 148, 149, 145, 151) for detecting signals (S, C) from first sensor means (103) designed to detect given angles of a drive shaft (125), and from second sensor means (105) designed to detect given angles of a distributor (126) shaft, the said detecting means (140, 141, 148, 145, 151, 149) controlling, as a function of the said incoming signals (S, C), fuel supply to a given combination of the said injectors (116).
Claim 4
Dependent Claim
74 words
3) - A system as claimed in Claim 2, characterised by the fact that, upon reception of a signal (C) from the said second sensor means (105) or a sequence of signals (S) from the said first sensor means (103), the said detecting means (140, 141, 148, 149, 145, 151) respectively control the said fuel supply to a given first (4, 2) or a given second (4, 3) pair of the said injectors (116).
Claim 5
Dependent Claim
29 words
4) - A system as claimed in Claim 3, characterised by the fact that the said sequence comprises three consecutive signals (S) from the said first sensor means (103).
Claim 6
Dependent Claim
65 words
5) - A system as claimed in one of the foregoing Claims, characterised by the fact that the said processing means (102) comprise means (142, 142') for calculating the amount of fuel supplied to the said injectors (116), prior to identification, by means of reduced parameters and in simplified manner as compared with the calculation performed for subsequent sequential, timed supply of individual injectors (116).
Claim 7
Dependent Claim
37 words
6) - A system as claimed in Claim 5, characterised by the fact that the said parameters comprise only the cooling water temperature and the air pressure inside the induction manifold (107) on the said engine (101).
Claim 8
Dependent Claim
103 words
7) - A system as claimed in one of the foregoing Claims, characterised by the fact that the said processing means (145, 151) controlling fuel supply to the said injectors (116), preliminary to identification of the said engine strokes, disable subsequent fuel supply to the same injectors (116) until the respective cylinder has completed the induction stroke for sucking up substantially all of the injected fuel; and that, subsequent to identification of the said engine strokes, the said processing means (152) control sequential, timed fuel supply to the said injectors (116) and enable ignition of the said cylinders on the said engine (101).
Claim 9
Dependent Claim
61 words
8) - A system as claimed in Claim 7, characterised by the fact that, subsequent to identification of the said engine strokes, the said processing means (152) control the said sequential, timed fuel supply to the said injectors (116) starting from an initial stroke reference value and working through stroke reference values tending progressively towards a steady state stroke reference value.
Claim 10
Dependent Claim
49 words
9) - A system as claimed in one of the foregoing Claims, characterised by the fact that the amount of fuel supplied to the said injectors (116), preliminary to identification of the said engine (101) strokes, is received substantially entirely by the respective cylinder in one single induction stroke.
Claim 11
Dependent Claim
48 words
10) - A system as claimed in one of the foregoing Claims, characterised by the fact that the said processing means (102) for the said fuel supply, preliminary to identification of the said engine (101) strokes, are enabled at an engine speed below a given preset engine speed.
References Cited (Backward Citations)
No citation records indexed.
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