# US 2019/0170070 A1 · Electronic Fuel Injection Throttle Body Assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170070 A1 - Document ID: US20190170070A1 - Status: Published application - Kind: A1 - Application number: 16/208,231 - Filed: 2018-12-03 - Published: 2019-06-06 - Earliest claimed: 2017-12-04 - Assignees: Holley Performance Products, Inc. - Applicants: Holley Performance Products, Inc. - Inventors: Laura Shehan; Amy Gieske; Jonathan Sams; Adam Layman - Web page: https://patentgrep.com/patent/US20190170070A1 ## CPC - F02D 9/105: {having a throttle position sensor (detection of actuation F02D11/106)} - F02D 9/1035: {Details of the valve housing} - F02M 35/10216: {Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators} - F02M 61/18: Injection nozzles, e.g. having valve seats; {Details of valve member seated ends, not otherwise provided for} - F02M 69/042: {Positioning of injectors with respect to engine, e.g. in the air intake conduit (mounting of injectors F02M61/14)} - F02M 69/043: {for injecting into the intake conduit upstream of an air throttle valve} - F02D 9/02: concerning induction conduits (throttle valves, or arrangements thereof in conduits F02D9/08) - F02D 9/107: {Manufacturing or mounting details} - F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W) - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF ## Abstract Present embodiments provide an electronic fuel injection throttle body which may be used with a variety of engines of different manufacturers. The throttle body may be used to replace mechanical or hydraulically controlled carburetors with electronic fuel injection. The bores or barrels of the throttle body may comprise one or more stackable fuel injectors. The fuel component cover may include a regulator with a housing for integrally with the fuel component cover or alternatively, a regulator may be located remotely. ## Claims ### Claim 1 A throttle body assembly, comprising: a body having a first bore and a second bore extending downwardly on a side of a body centerline; a fuel component cover having an inlet, said inlet disposed at an angle to a horizontal; said body having at least a first fuel injector port formed at each of said bores; said body having at least a second fuel injector port cast at each of said bores and configured for machining to render a retaining area usable; said fuel component cover disposed over said first fuel injector port and said second fuel injector port; a valve plate disposed within each of said bores, said valve plates disposed on a throttle shaft; and, said first and second fuel injectors having an alignment direction which is substantially perpendicular to said throttle shaft. ### Claim 2 (depends on 1) The throttle body assembly of claim 1 further wherein said throttle shaft is extending through said body in a direction substantially perpendicular to a horizontal direction of said first fuel injector ports. ### Claim 3 (depends on 1) The throttle body assembly of claim 1, further comprising a fuel injector in each of said fuel injector ports. ### Claim 4 (depends on 3) The throttle body assembly of claim 3 further comprising a fuel regulator disposed on said fuel component cover. ### Claim 5 (depends on 4) The throttle body assembly of claim 4 further comprising an outlet in fluid communication with said fuel regulator. ### Claim 6 (depends on 5) The throttle body assembly of claim 5, said outlet being angled relative to a horizontal direction. ### Claim 7 (depends on 1) The throttle body assembly of claim 1 wherein said fuel component cover has parallel horizontal passages which are one of vertically aligned or offset. ### Claim 8 (depends on 1) The throttle body assembly of claim 1 further comprising a fuel outlet on said fuel component cover. ### Claim 9 (depends on 1) The throttle body assembly of claim 1 further comprising a regulator housing formed with said fuel component cover. ### Claim 10 (depends on 9) The throttle body assembly of claim 9, further comprising said regulator cover clockably connected to said fuel component cover. ### Claim 11 A throttle body assembly, comprising: a body having a first bore and a second bore extending downwardly on a side of a body centerline; at least one first fuel injector port formed in each of said bores; at least one second fuel injector port formed in each of said bores; a fuel component cover having an inlet passage in flow communication; a vertical passage allowing flow communication to a second passage, said second passage capable of providing fuel flow to said second fuel injector port when configured for use; a valve plate disposed in each bore; and, a throttle shaft extending through said body and engaging said valve plates, said throttle shaft extending in a direction which is substantially perpendicular to a fuel injector horizontal direction. ### Claim 12 (depends on 11) The throttle body assembly of claim 11 further comprising an electronic control unit disposed on a side of said body opposite said fuel component cover. ### Claim 13 (depends on 12) The throttle body assembly of claim 12 further comprising a plurality of strain reliefs along a lower edge of an electronic control unit cover. ### Claim 14 (depends on 11) The throttle body assembly of claim 11 further comprising a fuel outlet. ### Claim 15 (depends on 14) The throttle body assembly of claim 14, further comprising a fuel inlet and said fuel outlet both being disposed on a single side of said body. ### Claim 16 (depends on 11) The throttle body assembly of claim 11 said fuel injector opening being angled relative to a horizontal. ### Claim 17 (depends on 11) The throttle body assembly of claim 11 wherein said fuel flow enters said throttle component cover at an angle to a horizontal direction and travels in a horizontal direction. ### Claim 18 (depends on 17) The throttle body assembly of claim 17, wherein said fuel flows in one of a vertical or an angled direction through said first body to change elevation.