Kenneth W. Hine
Engineering in Lake Charles, LA
License number
Louisiana PE.0013905
Issued Date
Sep 18, 1973
Category
Civil Engineer
Type
Electrical and Computer Engineer
Address
Address
PO Box 3228, Lake Charles, LA 70602
Professional information
President At Self Employed
Location:
Lake Charles, Louisiana Area
Industry:
Electrical/Electronic Manufacturing
Method And Apparatus For Metering Injection Pump Flow
US Patent:
6135719, Oct 24, 2000
Filed:
Dec 29, 1997
Appl. No.:
8/999213
Inventors:
Perry D. Yoder - Lake Charles LA
Kenneth W. Hine - Lake Charles LA
Kenneth W. Hine - Lake Charles LA
Assignee:
OilQuip, Inc. - Lake Charles LA
International Classification:
B67D 508
US Classification:
417 43
Abstract:
A system for metering a fluid, such as a catalyst in an industrial chemical process plant, includes a controller, a drive pump assembly and an injection pump assembly. The drive pump assembly forces reciprocation of the injection pump assembly via a controlled flow of hydraulic fluid. The injection pump assembly includes a drive cylinder and at least one injection section. The drive cylinder receives pressurized fluid from the drive pump assembly and causes metered fluid to be drawn into and expelled by the injection section. The position of reciprocating components of the injection pump assembly is detected between stroke limits and converted to a velocity signal. Closed-loop control of the flow from the injection pump assembly is implemented by the controller via the drive pump assembly based upon the actual velocity of the reciprocating components of the injection pump assembly and a commanded velocity. The closed-loop injection rate control may be incorporated in a nested fashion with a process parameter control loop to maintain a desired level of a process parameter, such as temperature in a reaction vessel.
Method And Apparatus For Metering Multiple Injection Pump Flow
US Patent:
6135724, Oct 24, 2000
Filed:
Jul 8, 1998
Appl. No.:
9/112246
Inventors:
Perry D. Yoder - Lake Charles LA
Kenneth W. Hine - Lake Charles LA
Kenneth W. Hine - Lake Charles LA
Assignee:
Oilquip, Inc. - Lake Charles LA
International Classification:
F04B 4900
US Classification:
417286
Abstract:
A system is provided for closed-loop control of a plurality of metering pumps driven by a single source of pressurized fluid. Feedback signals are generated that are proportional to output flow rate from each metering pump, such as velocity of a movable element of the pump with respect to a stationary element. Flow control valves are coupled between the source of pressurized fluid and the metering pumps. A controller receives the feedback signals and regulates flow from the flow control valves to each metering pump to maintain a desired level of output flow. The source of pressurized fluid may include a pressure compensated positive displacement pump having a maximum output flow rate at least equal to the anticipated combined flow rate of drive sections of the metering pumps.