# US 2019/0170069 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 2019/0170069 A1 - Document ID: US20190170069A1 - Status: Published application - Kind: A1 - Application number: 16/208,246 - 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/US20190170069A1 ## CPC - F02D 9/104: {Shaping of the flow path in the vicinity of the flap, e.g. having inserts in the housing} - F02D 9/105: {having a throttle position sensor (detection of actuation F02D11/106)} - 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)} - F02D 9/02: concerning induction conduits (throttle valves, or arrangements thereof in conduits F02D9/08) - F02D 9/107: {Manufacturing or mounting details} - F02D 2400/11: After-sales modification devices designed to be used to modify an engine afterwards - F02M 69/043: {for injecting into the intake conduit upstream of an air throttle valve} - F02M 69/044: {for injecting into the intake conduit downstream of an air throttle valve} - 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 a 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 throttle body may provide improved fuel pathways and fuel injector placement. ## Claims ### Claim 1 A throttle body assembly, comprising: a throttle body having an upper inlet and a lower outlet configured to mount to an internal combustion engine; at least one bore extending through said throttle body, wherein the at least one bore defines said upper inlet and said lower inlet of said throttle body assembly; a fuel component cover located on a first side of said throttle body and an electronic control unit cover located on a second side of said throttle body, wherein said first side is about 90 degrees from said second side; at least one fuel injector disposed at least partially within said throttle body, wherein said at least one fuel injector is parallel to a mounting base of said throttle body; at least one connecting fuel passage extending from a fuel inlet passage, comprising a cross-channel passageway and a vertical passageway at least partially disposed within said fuel component cover, wherein said vertical passageway is in fluid communication with said at least one fuel injector; a throttle shaft extending though the throttle body and at least one bore, wherein said throttle shaft is perpendicular to a horizontal direction between a first end and a second end of said at least one injector; and said at least one fuel injector directing fuel into a channel of at least one fuel distribution ring, said at least one fuel distribution ring having a plurality of fuel apertures directing fuel into a bore of said throttle body. ### Claim 2 (depends on 1) The throttle body assembly of claim 1, wherein said connecting fuel passage is on a first side of said throttle body assembly and closed such that fuel remains on said first side of said throttle body assembly. ### Claim 3 (depends on 1) The throttle body assembly of claim 1 wherein said at least one bore is four bores. ### Claim 4 (depends on 1) The throttle body assembly of claim 1 wherein each of said at least one bore has two vertically aligned fuel injectors. ### Claim 5 (depends on 1) The throttle body assembly of claim 1 where said electronic control unit is in electrical communication with said at least one fuel injector. ### Claim 6 (depends on 5) The throttle body assembly of claim 5, wherein said throttle body further comprises a notch for receiving at least one wire running to said at least one fuel injector from said electronic control unit, and said electronic control unit further comprises a cover, wherein said cover in combination with said notch encloses at least one wire running to said at least one fuel injector. ### Claim 7 (depends on 6) The throttle body assembly of claim 6, wherein said electronic control unit further comprises a plurality of strain reliefs along a lower edge of said cover configured to receive a plurality of wires. ### Claim 8 (depends on 6) The throttle body assembly of claim 6, wherein the lower edge of said cover further comprises at least one U-shaped strain relief notch along the lower edge of said cover configured to hold at least one wire extending through said notch against said throttle body. ### Claim 9 A throttle body assembly, comprising: a throttle body having an upper inlet and a lower outlet configured to mount to an internal combustion engine; at least one bore extending through said throttle body, wherein the at least one bore defines said upper inlet and said lower inlet of said throttle body assembly; a fuel component cover located on a first side of said throttle body and an electronic control unit and a cover mounted over said electronic control unit located on a second side of said throttle body, wherein said first side is about 90 degrees from said second side; at least one fuel injector disposed at least partially within said throttle body, wherein said at least one fuel injector is parallel to a mounting base of said throttle body and said electronic control unit is in electrical communication with said at least one fuel injector; at least one connecting fuel passage extending from a fuel inlet passage, comprising a cross-channel passageway and a vertical passageway at least partially disposed within said fuel component cover, wherein said vertical passageway is in fluid communication with said at least one fuel injector; and said at least one fuel injector directing fuel into a fuel distribution ring, said at least one fuel distribution ring having a plurality of fuel apertures directing fuel into a bore of said throttle body. ### Claim 10 (depends on 9) The throttle body assembly of claim 9, wherein said cover fully encloses at least one wire running from a side edge of said cover to said at least one fuel injector. ### Claim 11 (depends on 9) The throttle body assembly of claim 9, wherein said electronic control unit further comprises a plurality of strain reliefs along a lower edge of said cover configured to receive a plurality of wires. ### Claim 12 (depends on 10) The throttle body assembly of claim 10, wherein the lower edge of said cover further comprises at least one U-shaped strain relief notch along the lower edge of said cover configured to hold at least one wire extending through said notch against said throttle body.