Deepak Sahini

US Patent:

20140014074, Jan 16, 2014

Filed:

Jul 13, 2012

Appl. No.:

13/548697

Inventors:

Deepak SAHINI - Columbus IN, US
W. Joseph SATTERFIELD - Perth, AU
Robert P. ERICKSON - Columbus IN, US
Jeffrey J. SULLIVAN - Columbus IN, US
Donald J. BENSON - Columbus IN, US

Assignee:

CUMMINS INTELLECTUAL PROPERTY, INC. - Minneapolis MN

International Classification:

F02M 59/46

US Classification:

123506

Abstract:

A fuel pressure relief valve is positioned along a fuel circuit of an internal combustion engine. The pressure relief valve includes a valve body, a first plunger positioned within the valve body, a second plunger positioned within the first plunger, and a valve plug securing the first and second plungers in the valve body. A spring is positioned between the valve plug and the second plunger. Fuel leakage into the pressure relief valve causes the pressure relief valve to lift undesirably in the absence of excessive fuel pressure. The undesirable lifting undesirably affects the operation of the fuel rail and causes wear and shortened life of the pressure relief valve. The first plunger has at least one relief passage or groove located on an exterior surface, relieving the undesirable pressure buildup from a chamber formed between the valve body and the first plunger, eliminating undesirable liftoff events.

US Patent:

20130319930, Dec 5, 2013

Filed:

May 30, 2012

Appl. No.:

13/484235

Inventors:

Tamas Rauznitz - Columbus IN, US
Deepak Sahini - Columbus IN, US
Jeffrey J. Sullivan - Columbus IN, US

Assignee:

CUMMINS INTELLECTUAL PROPERTY, INC. - Minneapolis MN

International Classification:

B01D 29/44

US Classification:

210446

Abstract:

This disclosure provides an edge filter assembly for delivering high pressure or pressurized fuel to a cylinder an internal combustion engine and a high pressure connector and edge filter assembly that provides a pressurized fluid connection between a high pressure fuel line and an inlet of a fuel injector. The edge filter assembly and high pressure connector and edge filter assembly each have a geometric feature that can provide increased retention force to an interference fit of the edge filter with the assembly.

US Patent:

20150345450, Dec 3, 2015

Filed:

May 31, 2014

Appl. No.:

14/292860

Inventors:

- Columbus IN, US
Donald J. Benson - Columbus IN, US
Tamas Rauznitz - Columbus IN, US
Deepak Sahini - Columbus IN, US

International Classification:

F02M 61/04

Abstract:

An injector has an injector body including an injector cavity defining an inner wall and a longitudinal axis, an injector orifice and a plunger slidably disposed within the injector cavity. The plunger has an outer portion and an inner portion at different locations longitudinally along the plunger. The inner portion has a plurality of surface portions including a guiding portion configured to substantially mate with the inner wall of the injector cavity, guide the plunger to slidably move in a direction along the longitudinal axis and substantially prevent the plunger from laterally translating within the injector cavity. The plurality of surface portions also includes a restriction portion configured to form a restrictive cavity between an exterior surface of the inner portion and the inner wall of the injector cavity axially along a length of the inner portion.