Internal-combustion engines – Charge forming device – With fuel pump
Reexamination Certificate
2000-03-20
2001-10-23
Moulis, Thomas N. (Department: 3747)
Internal-combustion engines
Charge forming device
With fuel pump
C123S19800E, C073S116070
Reexamination Certificate
active
06305357
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention is directed to a portable auxiliary fuel system which may be used to service many different engines at one of a variety of fuel supply pressures selected to meet the vehicle's specifications. An embodiment of the system comprises a portable fuel container, a fuel pump operably connected to receive fuel from the portable fuel container, and a selectably adjustable outlet fuel pressure regulator operably connected to receive fuel from the fuel pump.
This superior alternate fuel pump system can be employed to deliver fuel at one of a plurality of predetermined discharge pressures to the fuel system of an internal combustion engine of any one of a plurality of vehicles satisfying a distinct fuel pressure requirement of one of said plurality of vehicles. And, it is preferably designed to supply the interim supply of fuel without disrupting the normal fuel supply system.
The apparatus of the present invention is portable and moveable about the service facility, and can be put on a mobile truck and taken out by a service technician to the field where a vehicle with a disabled fuel pump is located.
Automobile fuel pumps fail, and all too often they fail outside of a repair service center. Without the present invention, when this occurs the service technician generally has the automobile towed to the repair service center, where the fuel pump can be efficiently replaced.
The instant invention provides an advantageous alternative to the foregoing scenario by allowing the service technician to bring with him the universal surrogate fuel pump system which can be reversibly attached to the vehicle's fuel pressure fitting at a pressure selected to meet the vehicle's unique specification for the fuel injectors to allow the internal combustion engine to be started with an interim fuel delivery. Once the engine is started, the portable fuel pump will provide continuing fuel to the engine so that the vehicle may be driven to the service center for replacement of the permanent fuel pump.
A number of means for adjusting the outlet fuel pressure for generating a plurality of specific discharge pressures of the universal surrogate fuel pump system are provided including a selectably adjustable outlet fuel pressure regulator operably connected to receive fuel from the fuel pump, a fuel pump having a variable head discharge capability which is suitable programed, a manually adjustable outlet fuel pressure regulator operably connected to receive fuel from the fuel pump and means for determining the outlet fuel pressure, and an outlet fuel line having an inlet end operably connected to the fuel pump and a plurality of outlet ends, each of which has a distinctive flow restrictor effecting a distinct outlet pressure.
The selectable pressure fuel pump system of the present invention is powered by a temporary connection to the vehicle's battery, an external battery or other suitable power supply.
These together with other objects of the invention, along with the various features of novelty which characterize the invention are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and the specific objects attained by its uses, reference should be had to the accompanying drawings and descriptive matter in which there are illustrated preferred embodiments of the invention.
Still other advantages will be apparent from the disclosure that follows.
SUMMARY OF THE INVENTION
The invention relates to a universal surrogate fuel pump system for interim fuel delivery at a predetermined pressure to a fuel system of an internal combustion engine of any one of a plurality of vehicles satisfying a distinct fuel pressure requirement of one of said plurality of vehicles. An embodiment of the system comprises a portable fuel container, a fuel pump operably connected to receive fuel from the portable fuel container, and a fuel pressure regulator operably connected to receive fuel from the fuel pump.
The fuel pump is electrically powered and has means for receiving electrical power, and the regulator, either independently or in conjunction with a unique outlet fuel line, selectably adjusts the outlet fuel pressure.
This superior alternate fuel pump system can be employed to deliver fuel at one of the plurality of predetermined discharge pressures to the fuel system of an internal combustion satisfying a distinct fuel pressure requirement of one of a plurality of vehicles.
This fluid delivery apparatus can be employed to deliver fluid, such as fuel or a fuel injector cleaner or the like, to any of a plurality of vehicles having distinct fuel pressure requirements at one of the plurality of predetermined pressures. The apparatus can be employed to clean a system of fuel injectors of the engine and/or to start any of a plurality of vehicles having a failed permanently installed fuel pump at one of the plurality of predetermined pressures.
There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. There are, of course, additional features of the invention that will be described hereinafter and which will form the subject matter of the claims appended hereto. Those skilled in the art will appreciate that the conception upon which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.
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McKenna Michael R.
Moulis Thomas N.
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