Unlock instant, AI-driven research and patent intelligence for your innovation.

Fuel pump assembly with diverted flow

A fuel pump and fuel technology, applied in fuel injection control, liquid fuel feeder, charging system, etc., can solve the problem that the engine cannot use fuel, etc.

Active Publication Date: 2020-10-30
WALBRO LLC
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, an engine fed fuel from a carburetor or other low pressure charge forming device cannot use fuel at such a high pressure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fuel pump assembly with diverted flow
  • Fuel pump assembly with diverted flow
  • Fuel pump assembly with diverted flow

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Referring to the accompanying drawings in more detail, figure 1 Shown is a fuel pump assembly 10 constructed and arranged to be disposed at least partially within a vehicle fuel tank 12 (only a portion of which is shown), such as in a marine vehicle, snowmobile, ATV , motorcycle or car, these are non-limiting examples. Assembly 10 includes an electric motor driven fuel pump 14 that delivers fuel under pressure from a fuel tank 12 to a fuel control or metering device 15 , such as a carburetor or fuel injector(s) to support the engine 17 operate. Fuel pump 14 may include a turbine-type pumping element (eg, a rotating impeller) for pressurizing fuel, or any other suitable type, including but not limited to positive displacement pumps with gerotors or other pumping elements. Assembly 10 may also include a fuel level sensor 16 that provides an indication of the amount of fuel within fuel tank 12 , and a fuel filter 18 that may filter fuel before it is drawn into an inlet 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In at least some implementations, a fuel pump assembly includes a fuel pump having an inlet through which fuel enters the fuel pump and a first outlet from which pressurized fuel is discharged for delivery to an engine, and a second outlet through which some of the fuel discharged from the fuel pump is routed wherein that fuel is not delivered to the engine, wherein the second outlet has a flow area that permits a flow of fuel through the second outlet that is sufficient to reduce the maximum pressure of fuel downstream of the first outlet for delivery to an engine to between l / 10th and l / 25thof the output pressure of the fuel pump without flow through the second outlet.

Description

[0001] References to related applications [0002] This application claims the benefit of U.S. Provisional Application Serial No. 62 / 645,215, filed March 20, 2018, the entire contents of which are hereby incorporated by reference in their entirety. technical field [0003] The present disclosure generally relates to a fuel pump assembly in which a portion of output fuel from the fuel pump is diverted and not supplied to the engine. Background technique [0004] Vehicles typically include a fuel system having a fuel tank, a fuel pump that pumps fuel from the tank to the vehicle engine to support engine operation, and sometimes other components such as fuel level sensors, fuel pressure regulators, fuel Injectors, fuel filters, etc. In some vehicles, the fuel pump is installed in the vehicle fuel tank as part of a module or assembly that may include other components of the fuel system, such as a fuel level sensor and one or more fuel filters, all These are all carried on a co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/10F02D41/30F02M37/44
CPCF02M37/10F02M37/44F02D41/3082F02M37/50F02D2200/0602F02D2250/31
Inventor E·J·费希D·W·小萨罗维奇E·J·塔拉斯基
Owner WALBRO LLC