Terry L Whitesel

US Patent:

40337065, Jul 5, 1977

Filed:

Aug 6, 1975

Appl. No.:

5/602240

Inventors:

John G. Schaefer - Rockford IL
Terry L. Whitesel - Rockford IL

Assignee:

Sundstrand Corporation - Rockford IL

International Classification:

F04B 2304
F04F 548

US Classification:

417 79

Abstract:

A fluid delivery system and, more particularly, a system for delivering fuel to an aircraft engine. A positive displacement pump delivers fuel to the engine and is supplied by an ejector boost pump connected to a fuel tank and having a nozzle supplied with fuel delivered by the fuel pump for drawing fuel from the tank and increasing the pressure of the fuel prior to delivery through interstage components to the inlet of the fuel pump. Valve means responsive to the pressure differential across the nozzle of the ejector boost pump operates to maintain a uniform rate of fuel flow through the nozzle. In certain embodiments of the fluid delivery system, the fuel pump is provided with auxiliary inlets for delivery of fuel to pumping chambers out of communication with the main inlet of the pump for improved operation of the fuel pump and avoidance of problems encountered from the presence of vapor in the fuel.

US Patent:

44178514, Nov 29, 1983

Filed:

Nov 17, 1980

Appl. No.:

6/207302

Inventors:

John E. Cygnor - Rockford IL
Terry L. Whitesel - Rockford IL
Duane C. Mosure - Poplar Grove IL

Assignee:

Sundstrand Corporation - Rockford IL

International Classification:

F04D 2946

US Classification:

415150

Abstract:

This invention relates to a fully modulatable centrifugal pump capable of handling a fluid containing solid contaminant particles and minimizing the temperature rise of the pumped fluid. The pump is of the type that includes an impeller to propel the fluid through a radial outlet to a diffuser which includes a plurality of diffuser passages. The improvement is comprised of the following cooperative combination which includes rotatably mounted valve elements passing, in part, through the diffuser and across the diffuser passages. Each of the valve elements have a port therethrough to variably selectively allow fluid passage therethrough upon rotation of the valve element. A driving arrangement is coupled to each of the valve elements to thereby affect a yieldable rotation of the valve elements in one direction to progressively reduce the opening of the valve element port to the diffuser passage. The aforementioned driving arrangement is also drivingly coupled to the valve elements to provide a direct mechanical coupling to the valve element to thereby affect a nonyieldable rotation of the valve element in an opposite direction to increase the opening of the valve port to the diffuser passage, to thereby ensure that contaminant particles that lodge between a portion of said valve port and the diffuser passage and interrupt movement of one or more valve element port closings do not prevent the remaining valve port elements from closing. During the opposite rotation of the valve elements there is a direct mechanical drive that ensures the opening of the valve port to thereby release the contaminant particle and allow passage of the particle from the valve element and the diffuser.

US Patent:

47144050, Dec 22, 1987

Filed:

Sep 11, 1986

Appl. No.:

6/906676

Inventors:

John G. Schaefer - Rockford IL
Jerome K. Aarestad - Rockford IL
Terry L. Whitesel - Rockford IL

Assignee:

Sundstrand Corporation - Rockford IL

International Classification:

F01D 2532

US Classification:

415169R

Abstract:

A centrifugal pump has a casing with an impeller cavity in which a shrouded impeller is mounted and with front and rear labyrinth seals associated one with each of the front and rear shrouds of the impeller and located near the inner ends of the shrouds. An additional seal is positioned inwardly of the rear labyrinth seal to substantially seal a space behind the innermost part of the rear shroud and a pump structure is mounted on the impeller to the rear of the rear shroud for pumping fluid from the substantially sealed space to the entrance of a volute surrounding the impeller. The impeller shaft has a front thrust bearing coacting with a bearing surface, with fluid passing therebetween for lubrication and with the flow of the fluid being controlled to a minimal amount by a force imbalance on the impeller shaft created by location of the front and rear labyrinth seals at different distances from the axis of rotation of the impeller whereby pressure forces acting at the rear of the impeller urge the impeller shaft in a forward direction.

US Patent:

20140271310, Sep 18, 2014

Filed:

Mar 14, 2013

Appl. No.:

13/831014

Inventors:

- Fort Collins CO, US
Terry Whitesel - Rockford IL, US

Assignee:

WOODWARD, INC. - Fort Collins CO

International Classification:

F04C 18/24

US Classification:

418191

Abstract:

The subject matter of this specification can be embodied in, among other things, a fluid pump that includes a housing with a cam block. The pump also includes a collection of vanes, each having a shank having a leading edge and a trailing edge, and a head having a curved outer side. The pump also includes a rotor having a collection of slots, each slot having substantially parallel leading and trailing edges spaced to accommodate the shank of one of the vanes, wherein each vane contacts the cam block at a contact point on the head controlled by the rotor slot position and the head outer curved surface, the contact point being located relative to the shank edge when the vane is radially aligned with the major and minor radii, and located rotationally to create a radial force between the head curved surface and the cam block.