UST101202I4 - Carburetor idle system air/fuel ratio control - Google Patents
Carburetor idle system air/fuel ratio control Download PDFInfo
- Publication number
- UST101202I4 UST101202I4 US06/219,558 US21955880A UST101202I4 US T101202 I4 UST101202 I4 US T101202I4 US 21955880 A US21955880 A US 21955880A US T101202 I4 UST101202 I4 US T101202I4
- Authority
- US
- United States
- Prior art keywords
- idle
- air
- fuel
- tube
- size
- 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.)
- Pending
Links
Images
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
- F02M3/00—Idling devices for carburettors
- F02M3/08—Other details of idling devices
- F02M3/12—Passageway systems
Abstract
A carburetor is provided with a separate idle air/fuel system containing an idle fuel metering jet or orifice; and an idle fuel tube connected to an induction passage discharge port downstream of the throttle valve, the idle fuel tube being surrounded or enclosed near the discharge end by an air well connected to a main air bleed, this portion of the idle tube having air bleed holes for mixing air with the fuel to provide acceptable driveability during idle speed operation, the diameter of the holes being mathematically calculatable to vary in a direct relation to the size of the idle metering jet and in an inverse relation to the diameter of the idle air well tube, to provide an essentially constant air/fuel ratio to the idle mixture flow upon changes in either the idle jet size or the idle tube size.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/219,558 UST101202I4 (en) | 1979-10-05 | 1980-12-23 | Carburetor idle system air/fuel ratio control |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8235179A | 1979-10-05 | 1979-10-05 | |
US06/219,558 UST101202I4 (en) | 1979-10-05 | 1980-12-23 | Carburetor idle system air/fuel ratio control |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US8235179A Continuation | 1979-10-05 | 1979-10-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
UST101202I4 true UST101202I4 (en) | 1981-11-03 |
Family
ID=22170656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/219,558 Pending UST101202I4 (en) | 1979-10-05 | 1980-12-23 | Carburetor idle system air/fuel ratio control |
Country Status (1)
Country | Link |
---|---|
US (1) | UST101202I4 (en) |
-
1980
- 1980-12-23 US US06/219,558 patent/UST101202I4/en active Pending
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |