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US 5,283,011 AGranted
Carburetor with doubled float valve fuel flow
AssigneeMcClintic RDM, Inc.
InventorsJohn W. McClintic, Jeff J. McClintic
Life of this patent
Estimating the term…
Abstract
A carburetor of the "HOLLEY" 4150 or 4500 series is modified to double the fuel intake capacity thereof, to limit fuel sloshing in the float bowls thereof, to provide an upper fuel transfer passage between a pair of fuel inlet passages for each float bowl, to enable ready removable and replacement of the main jets independent of removable of the float bowls and to provide alternate main jet fuel pickup zones in different plan areas of the bottom of the float bowls.
Claims14
In a carburetor of the type including a main body defining a plurality of venturis and having
- (1) at least one primary metering block removably sealingly mounted to a corresponding side of said body and including main fuel passages opening through said block with main jets controlling the flow of fuel through said passages and removable from the side of said block remote from said body and
- (2) a laterally opening float bowl opening toward and sealingly secured over the side of said block remote from said body;
- the improvement comprising said bowl including two opposite end fuel inlet chambers each including a vertical passage having a fuel inlet line fitting communicated with an upper portion of said vertical passage for communication with a fuel delivery line outlet end, a lower fuel outlet opening directly into a lower portion of said bowl from a lower portion of said passage, a float controlled valve in an intermediate portion of said passage with each valve being under the operative control of a corresponding float within the corresponding end of said float bowl and an elongated upper fuel transfer passage in said bowl extending longitudinally thereof and including opposite ends opening into said upper portions of said vertical passages upstream from the corresponding float controlled valve.
In a carburetor of the type including a main body defining a plurality of venturis and having
- (1) at least one primary metering block removably sealingly mounted to a corresponding side of said body and including main fuel passages opening through said block with main jets controlling the flow of fuel through said passages and removable from the side of said block remote from said body and
- (2) a laterally opening float bowl opening toward and sealingly secured over the side of said block remote from said body;
- the improvement comprising a pair of tubular extension main jet relocating adaptors each including a first threaded end, said main fuel passages including threaded ends opening through the side of said block remote from said body, said threaded ends of said adaptors being removably threadedly engaged in the threaded ends of said main fuel passages, the opposite ends of said tubular adaptors being internally threaded with said main jets threadedly secured therein, said adaptors being operable to appreciably outwardly offset said main jets from the side of said block remote from said body to positions closely adjacent the closed outer side of said float bowl.
In a carburetor of the type including a main body defining a plurality of venturis and having
- (1) at least one primary metering block removably sealingly mounted to a corresponding side of said body and including main fuel passages opening through said block with main jets controlling the flow of fuel through said passages and removable from the side of said block remote from said body and
- (2) a laterally opening float bowl opening toward and sealingly secured over the side of said block remote from said body;
- the improvement comprising said main jets including cylindrical heads projecting outwardly of the side of said block remote from said body, a remote fuel pickup including means defining a pair of angled bores having a first set of ends snugly telescopingly engageable over said heads and a second set of ends disposed closely adjacent and opening outwardly toward one end of said float bowl.
In a carburetor of the type including a main body defining a plurality of venturis and having
- (1) at least one primary metering block removably sealingly mounted to a corresponding side of said body and including main fuel passages opening through said block with main jets controlling the flow of fuel through said passages and removable from the side of said block remote from said body and
- (2) a laterally opening float bowl opening toward and sealingly secured over the side of said block remote from said body;
- the improvement comprising the side of said float bowl opposite the open side thereof including a pair of access openings formed therein in which removable plugs are secured, said access openings being registered with said main jets, and an elongated shank type tool lengthwise insertable through said access openings and removably supportively engageable with said main jets in rotary torque transfer relation therewith.
Dependencies are inferred from the claim text.