# US 11,203,998 B2 · Engine comprising a measuring device for an internal combustion engine having a target passage detector > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,203,998 B2 - Document ID: US11203998B2 - Status: Granted - Kind: B2 - Application number: 16/616,896 - Filed: 2018-05-25 - Published: 2020-06-04 - Granted: 2021-12-21 - Earliest claimed: 2017-05-29 - Assignees: MCE 5 Development - Applicants: MCE 5 Development - Inventors: René-Pierre Bertheau - Web page: https://patentgrep.com/patent/US11203998B2 ## CPC - F02F 7/0021: {Construction} - G01D 11/30: Supports specially adapted for an instrument; Supports specially adapted for a set of instruments - F02D 35/02: on interior conditions - F16J 1/14: with connecting-rods, i.e. pivotal connections - G01D 5/12: using electric or magnetic means (G01D5/06 takes precedence) - G01R 33/07: Hall effect devices - F02F: CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES - G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR - 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) - F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) ## Abstract An internal combustion engine comprises a connecting rod and a target arranged on one of the lateral reinforcing walls of a piston or on a foot end of the connecting rod, and a crankcase defining at least one cylinder and having at least one bore opening out under the cylinder. The engine comprises a measuring device arranged in the bore of the crankcase and having a target passage detector, and a connector and at least one cable connecting the passage detector to the connector. The target is arranged opposite the passage detector, when the piston is near a bottom dead center position. ## Claims ### Claim 1 An internal combustion engine, comprising: a cylinder housing defining at least one cylinder and having at least one bore opening under the cylinder; a piston disposed in the cylinder and comprising two skirt portions and two reinforcing side walls connecting the two skirt portions to one another; a connecting rod having a foot associated with the piston; a target arranged on one of the side walls of the piston or on the foot of the connecting rod; and a measuring device arranged in the at least one bore of the cylinder housing and comprising a passage sensor for sensing the target, a connector and at least one cable connecting the passage sensor to the connector, a first part of the measuring device supporting the connector, and a second part of the measuring device supporting the passage sensor, the first part and the second part of the measuring device being articulated to one another forming an angle between the first part and the second part, such that the target is arranged opposite the passage sensor when the piston is at or near a bottom dead center position. ### Claim 2 (depends on 1) The internal combustion engine of claim 1, wherein the first part of the measuring device is fully inserted into the cylinder housing. ### Claim 3 (depends on 2) The internal combustion engine of claim 2, wherein the at least one bore is perpendicular to a crankshaft axis of the engine. ### Claim 4 (depends on 3) The internal combustion engine of claim 3, wherein the passage sensor includes a Hall effect sensor. ### Claim 5 (depends on 4) The internal combustion engine of claim 4, wherein the engine has a variable compression ratio. ### Claim 6 (depends on 5) The internal combustion engine of claim 5, wherein the two reinforcing side walls are provided with reinforced bosses for retaining a piston pin, and wherein the target is arranged on one of the reinforced bosses. ### Claim 7 (depends on 5) The internal combustion engine of claim 5, wherein the target is arranged in the vicinity of the foot of the connecting rod. ### Claim 8 (depends on 5) The internal combustion engine of claim 5, wherein the target comprises a magnetic or metallic body. ### Claim 9 (depends on 1) The internal combustion engine of claim 1, wherein the at least one bore is perpendicular to a crankshaft axis of the engine. ### Claim 10 (depends on 1) The internal combustion engine of claim 1, wherein the passage sensor includes a Hall effect sensor. ### Claim 11 (depends on 1) The internal combustion engine of claim 1, wherein the engine has a variable compression ratio. ### Claim 12 (depends on 1) The internal combustion engine of claim 1, wherein the two reinforcing side walls are provided with reinforced bosses for retaining a piston pin, and wherein the target is arranged on one of the reinforced bosses. ### Claim 13 (depends on 1) The internal combustion engine of claim 1, wherein the target is arranged in the vicinity of the foot of the connecting rod. ### Claim 14 (depends on 1) The internal combustion engine of claim 1, wherein the target comprises a magnetic or metallic body.