Cummins Inc.

Srinivas Kumar Mulukutla

David Michael Carey

Shailesh Nair

Edward Nathan Linen

Shounak Mishra

Mayur H Borate

Zachary L Anslinger

Sarah E Gnau

Panendra Kumar Sahu

A pressure-based piston top-dead-center ('TDC') position measurement system is disclosed, comprising: a fuel injector configured to inject fuel into a combustion chamber bounded in part by the piston; and a controller configured to control the fuel injector to cause a fuel injection when the piston is at each of a plurality of different positions relative to TDC while ensuring fuel is provided to the fuel injector at a substantially constant pressure. The controller is further configured to estimate a pressure in the combustion chamber in response to each fuel injection, fit a curve to the estimated pressures, and determine a TDC position of the piston as correlating with a maximum pressure on the curve.

Systems and methods of using a fuel injector as a pressure sensor to detect top-dead-center for a cylinder

A method for identifying a source of high pressure leakage of a fuel system of an engine comprising determining pressure decay values at a first pressure and at a second pressure and identifying the source of high pressure leakage based on the pressure decay values at each pressure.

System and method for identifying a source of high pressure leakage

Growing community of inventors

Pune, India

Srinivas Kumar Mulukutla