Common rail system with leak containment and detection

US8997715B2 · kind B2 · utility

Assignee

• Cummins Intellectual Properties, Inc. · US

Inventors

• Joseph A. Worthington · Scipio, US
• Thomas Hahn · Frankfurt am Main, DE
• Vijay Sonawane · Pune, IN
• Prasad Ramdas Khedekar · Pune, IN
• Dave Richter · Columbus, US
• Josh Knight · Columbus, US

Key dates

• Filing date: May 8, 2011
• Grant date: Apr 7, 2015
• Expiry date: Jan 3, 2034

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M65/006
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

This disclosure provides a fuel system for supplying fuel to an internal combustion engine, an internal combustion engine that includes such a fuel system, a connector for connecting a single-walled high pressure common rail to a double-walled fuel line segment, and a fluid containment system. Each embodiment includes drain plumbing having a leakage drain connector that can be used to provide an interface between a single-walled high pressure common rail and a double-walled high pressure fuel line segment, and also provide part of a low pressure passage fluidly connected with a low pressure passage of the double-walled high pressure fuel line segment. The drain plumbing also can provide an interface with a low pressure fuel drain line fluidly coupled to a leakage detector.