EP0294083A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Compact integrated engine induction air/fuel system
Assignee: Ford-Werke GmbH
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Filing: 1988-05-25
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Granted: —
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Expires: 2008-05-25
Abstract
Abstract An essentially unitary all plastic intake manifold has two essentially L-shaped sections (16,18) facing one another to form a U-shaped assembly, the upper section (16) including an air throttle body (36) integral with an air plenum (34) in turn integral with a plurality of laterally spaced tuned manifold runners (54), the lower section (18) having an equal number of laterally spaced manifold runners (58) connected to engine cylinder head intake ports, and a fuel system (63) formed integral with the lower runners (58) and including a fuel pressure regulator (74) and fuel supply and return lines (66,70) serially connecting fuel injector receiving cups (76) providing a bottom feed of fuel to the injectors (86) and a constant purge of fuel from the cups (76), for efficient engine operation.
Inventors
- 👤 Dale Mayol
- 👤 Richard J. Freismuth
- 👤 James Jones
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 13:23
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10314; F02M35/10321; F02B; F02B27/00; F02B27/005; F02B27/006; F02M35/10006; F02M35/10026; F02M35/10052; F02M35/10091; F02M35/10111; F02M35/10209; F02M35/10216; F02M35/104; F02M35/112; F02M69/00; F02M69/46; F02M69/462; F02M69/465; F05; F05C; F05C2225/00; F05C2225/08; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
179 words
An air/fuel induction system for an internal combustion engine, the induction system being made of plastic material and comprising first and second essentially symmetrical L-shaped sections (16,18) facing one another and together forming a U-shaped assembly, each section including a plurality of laterally spaced L-shaped essentially parallel runners (54,58) of equal length, the first section (16) having an air intake plenum (34) common to all the runners (54) and connected integrally therewith for supplying air individually thereto, the second section (18) having engine attaching flange means (60) integral therewith with port means (62) aligned with and corresponding in number to the number of runners for the discharge of air therethrough, and a fuel system (63) integral with the second section including a plurality of serially fuel connected fuel injector receiving cup means (76) communicating with each of the port means (62) for discharging thereinto fuel intermittently discharged from fuel injectors (86) adapted to be inserted into each of the cup means (76), and fuel supply and return lines (66,70) for supplying fuel to the cups to supply the injectors.
Claim 2
Dependent Claim
179 words
An air/fuel induction system for an internal combustion engine, the induction system being made of plastic material and comprising first and second essentially symmetrical L-shaped sections (16,18) facing one another and together forming a U-shaped assembly, each section including a plurality of laterally spaced L-shaped essentially parallel runners (54,58) of equal length, the first section (16) having an air intake plenum (34) common to all the runners (54) and connected integrally therewith for supplying air individually thereto, the second section (18) having engine attaching flange means (60) integral therewith with port means (62) aligned with and corresponding in number to the number of runners for the discharge of air therethrough, and a fuel system (63) integral with the second section including a plurality of serially fuel connected fuel injector receiving cup means (76) communicating with each of the port means (62) for discharging thereinto fuel intermittently discharged from fuel injectors (86) adapted to be inserted into each of the cup means (76), and fuel supply and return lines (66,70) for supplying fuel to the cups to supply the injectors.
Claim 3
Dependent Claim
78 words
A system as claimed in Claim 1, wherein the fuel system includes a housing formed with said cup means and said fuel supply and return lines, the fuel supply line being enclosed by the housing communicating concurrently with each of the cup means by means of an annulus and, the cup means having a fuel inlet and outlet on opposite sides for supplying fuel to the fuel injectors and for constantly purging the fuel from the cup means.
Claim 4
Dependent Claim
44 words
A system as claimed in Claim 1 or 2, wherein each runner consists of a horizontally extending leg portion joined to a vertical base portion at right angles thereto, and flange means for joining the base portions of the first and second sections together.
Claim 5
Independent Claim
39 words
A system as claimed in any one of the Claims 1 to 3, wherein the first section includes an air throttle body integrally formed on an air inlet end of the plenum for controlling air flow to the plenum.
Claim 6
Independent Claim
26 words
A system as claimed in any one of the preceding claims, wherein the fuel system and the second section includes a fuel pressure regulator integral therewith.
References Cited (Backward Citations)
No citation records indexed.
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