Ronald Gene Downs

US Patent:

39453022, Mar 23, 1976

Filed:

Apr 9, 1975

Appl. No.:

5/566292

Inventors:

Ronald Downs - Seymour IN

Assignee:

Cummins Engine Company, Inc. - Columbus IN

International Classification:

F01B 1900
F01B 3114
F15B 1524

US Classification:

92 132

Abstract:

The disclosure illustrates a tool which permits the adjustment of a pressure responsive flow controlling diaphragm assembly while the diaphragm is pressurized. The tool is used to adjust the position of a central shaft threaded through the diaphragm and held in place by a locking jam nut. The central shaft and locking nut are received in a center bolt having a hexagonal head which holds the diaphragm assembly together. The tool comprises a base that is mounted over the pressurized face of the diaphragm in place of its normal cover. A series of concentric sockets extend through the base for engaging the center bolt and the lock nut. A center shaft extends through the sockets and has a section of an allen wrench received in a corresponding recess of the central shaft of the diaphragm assembly. Suitable passages in the base enable the diaphragm to be pressurized to a desired adjustment pressure. Manipulation of the various sockets and center shaft permits the central diaphragm shaft to be adjusted upon actual operating conditions.

US Patent:

41700724, Oct 9, 1979

Filed:

Feb 25, 1976

Appl. No.:

5/661079

Inventors:

Ronald Downs - Seymour IN

Assignee:

Cummins Engine Company, Inc. - Columbus IN

International Classification:

G01B 322

US Classification:

33172R

Abstract:

The disclosure illustrates a fixture permitting the adjustment of a stop which limits the upward travel of a unit type fuel injector plunger. The fixture comprises parallel rails having cross bars for clamping the injector to be adjusted with a given preload. An upper cross bar receives a displaceable rod adapted to be received in a socket in the injector for depressing the plunger. An arm having a given weight at its free end is pivotally mounted to the upper cross arm. The arm is pivoted downward to depress the plunger to its bottom-most position. A dial gauge indicates linear displacement of the rod and the plunger to a desired upper limit of travel where the stop is positioned. The predetermined weight at the end of the arm permits repeatable checking of the adjustment.