STEVEN DEWAYNE CENTERS
Pilots at Bel Air Cir, Daphne, AL
License number
Alabama A0310742
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
105 Bel Air Cir, Daphne, AL 36526
Professional information
Multistage Blowdown Valve For A Compressor System
US Patent:
6371731, Apr 16, 2002
Filed:
Jun 27, 2001
Appl. No.:
09/892587
Inventors:
Steven D. Centers - Daphne AL
Assignee:
Coltec Industries Inc - Charlotte NC
International Classification:
F04B 4900
US Classification:
417 18
Abstract:
A multi-stage blowdown valve is provided that uses a single control signal to simultaneously decompress the interstage and the second stage in a compressor system. The valve uses a series of sliding spools located linearly within a single bore to either prevent or allow fluid communication between two isolated passageways each having an inlet port and a discharge port. The valve, when used as a two stage blowdown valve in a multi-stage compressor system, can prevent compressor failure from occurring by ensuring that both the interstage and the second stages are decompressed. not only the interstage.
System And Method For Controlling Rotary Screw Compressors
US Patent:
6450771, Sep 17, 2002
Filed:
Jul 24, 2000
Appl. No.:
09/624083
Inventors:
Steven D. Centers - Daphne AL
Paul Burrell - Norcross GA
Paul Burrell - Norcross GA
Assignee:
Coltec Industries Inc - Charlotte NC
International Classification:
F04B 4922
US Classification:
417 12, 417 18, 417 442, 417 53, 417 36, 417280
Abstract:
An electronic control system dynamically varies the output capacity of a compressor by controlling plural valves associated with the compressor to provide pressurized air to a distribution system at an appropriate rate. The control system operates in any of three modes for standalone operation, including continuous run, auto/dual pressure band, and target pressure modes. In the first two modes, pressure bands are dynamically calculated based on load and unload values entered by an operator. These electronic control systems can also be connected in a peer-to-peer network to coordinate control of up to 16 compressors feeding the same distribution system, so as to maintain a desired target pressure in the system. A modem connected to the system supports remote diagnostics, monitoring, and control. Specialized startup, operating, and shutdown diagnostic algorithms prevent damage to the compressor and avert unsafe operating conditions.
System And Methods For Controlling Rotary Screw Compressors
US Patent:
6533552, Mar 18, 2003
Filed:
Apr 23, 2002
Appl. No.:
10/131389
Inventors:
Steven D. Centers - Daphne AL
Paul Burrell - Norcross GA
Paul Burrell - Norcross GA
Assignee:
Coltec Industries Inc. - Charlotte NC
International Classification:
F04B 4900
US Classification:
417 12, 417 53, 417 28, 417307
Abstract:
An electronic control system dynamically varies the output capacity of a compressor by controlling plural valves associated with the compressor to provide pressurized air to a distribution system at an appropriate rate. The control system operates in any of three modes for standalone operation, including continuous run, auto/dual pressure band, and target pressure modes. In the first two modes, pressure bands are dynamically calculated based on load and unload values entered by an operator. These electronic control systems can also be connected in a peer-to-peer network to coordinate control of up to 16 compressors feeding the same distribution system, so as to maintain a desired target pressure in the system. A modem connected to the system supports remote diagnostics, monitoring, and control. Specialized startup, operating, and shutdown diagnostic algorithms prevent damage to the compressor and avert unsafe operating conditions.
System And Methods For Controlling Rotary Screw Compressors
US Patent:
6244824, Jun 12, 2001
Filed:
Aug 19, 1999
Appl. No.:
9/377546
Inventors:
Steven D. Centers - Daphne AL
Paul Burrell - Norcross GA
Paul Burrell - Norcross GA
Assignee:
Coltec Industries Inc.
International Classification:
F04B 4902
US Classification:
417 18
Abstract:
An electronic control system dynamically varies the output capacity of a compressor by controlling plural valves associated with the compressor to provide pressurized air to a distribution system at an appropriate rate. The control system operates in any of three modes for standalone operation, including continuous run, auto/dual pressure band, and target pressure modes. In the first two modes, pressure bands are dynamically calculated based on load and unload values entered by an operator. These electronic control systems can also be connected in a peer-to-peer network to coordinate control of up to 16 compressors feeding the same distribution system, so as to maintain a desired target pressure in the system. A modem connected to the system supports remote diagnostics, monitoring, and control. Specialized startup, operating, and shutdown diagnostic algorithms prevent damage to the compressor and avert unsafe operating conditions.
System And Methods For Controlling Rotary Screw Compressors
US Patent:
6077051, Jun 20, 2000
Filed:
Oct 8, 1997
Appl. No.:
8/946635
Inventors:
Steven D. Centers - Daphne AL
Paul Burrell - Norcross GA
Paul Burrell - Norcross GA
Assignee:
Coltec Industries Inc - Charlotte NC
International Classification:
F04B 4900
US Classification:
417280
Abstract:
An electronic control system dynamically varies the output capacity of a compressor by controlling plural valves associated with the compressor to provide pressurized air to a distribution system at an appropriate rate. The control system operates in any of three modes for standalone operation, including continuous run, auto/dual pressure band, and target pressure modes. In the first two modes, pressure bands are dynamically calculated based on load and unload values entered by an operator. These electronic control systems can also be connected in a peer-to-peer network to coordinate control of up to 16 compressors feeding the same distribution system, so as to maintain a desired target pressure in the system. A modem connected to the system supports remote diagnostics, monitoring, and control. Specialized startup, operating, and shutdown diagnostic algorithms prevent damage to the compressor and avert unsafe operating conditions.
System And Method For Lubricant Flow Control In A Variable Speed Compressor Package
US Patent:
2004011, Jun 17, 2004
Filed:
Dec 13, 2002
Appl. No.:
10/318421
Inventors:
Steven Centers - Daphne AL, US
International Classification:
F16N027/00
US Classification:
184/007400
Abstract:
A system and method for regulating lubricant flow in a variable speed compressor includes a compressor having an inlet for gas to be compressed, at least one lubricant injection line, and an outlet through which compressed gas and lubricant exit, a flow control interface comprising at least one valve for regulating the flow of lubricant through the lubricant injection line, and a control logic in communication with the compressor such that the operating speed of the compressor is communicated to the control logic and the control logic is in communication with the flow control interface such that the control logic sends a signal to the flow control interface to open or close the at least one valve depending on the predetermined optimum lubricant flow rate for the compressor based on its operational speed. This allows the flow of lubricant through the compressor to be varied in response to the operating needs of the compressor at different speeds.
System And Methods For Controlling Rotary Screw Compressors
US Patent:
5713724, Feb 3, 1998
Filed:
Nov 23, 1994
Appl. No.:
8/346251
Inventors:
Steven D. Centers - Daphne AL
Paul Burrell - Norcross GA
Paul Burrell - Norcross GA
Assignee:
Coltec Industries Inc. - Charlotte NC
International Classification:
F04B 4922
US Classification:
417 53
Abstract:
An electronic control system dynamically varies the output capacity of a compressor by controlling plural valves associated with the compressor to provide pressurized air to a distribution system at an appropriate rate. The control system operates in any of three modes for standalone operation, including continuous run, auto/dual pressure band, and target pressure modes. In the first two modes, pressure bands are dynamically calculated based on load and unload values entered by an operator. These electronic control systems can also be connected in a peer-to-peer network to coordinate control of up to 16 compressors feeding the same distribution system, so as to maintain a desired target pressure in the system. A modem connected to the system supports remote diagnostics, monitoring, and control. Specialized startup, operating, and shutdown diagnostic algorithms prevent damage to the compressor and avert unsafe operating conditions.
Smart Blow-Down System For Variable Frequency Drive Compressor Units
US Patent:
2013004, Feb 21, 2013
Filed:
Oct 19, 2012
Appl. No.:
13/656377
Inventors:
Quincy Compressor LLC - Pine Brook NJ, US
Steven DeWayne Centers - Daphne AL, US
Steven DeWayne Centers - Daphne AL, US
Assignee:
Quincy Compressor LLC - Pine Brook NJ
International Classification:
F04B 49/00
US Classification:
417 53
Abstract:
A method and apparatus for blowing down a compressed air system when temperature is at or below a predefined temperature threshold is provided. Temperature sensors in the compressed air system monitor temperature and a control processor determines when the temperature is at or below the predefined temperature threshold. When it is determined temperature is at or below the predefined temperature threshold, the control processor operates a solenoid blow-down valve that depressurizes the compressed air system.
Smart Blow-Down System For Variable Frequency Drive Compressor Units
US Patent:
8308446, Nov 13, 2012
Filed:
Apr 4, 2008
Appl. No.:
12/098332
Inventors:
Yan Tang - Daphne AL, US
Steven DeWayne Centers - Daphne AL, US
Steven DeWayne Centers - Daphne AL, US
Assignee:
Quincy Compressor LLC - Pine Brook NJ
International Classification:
F04B 49/02
US Classification:
417292
Abstract:
A method and apparatus for blowing down a compressed air system when temperature is at or below a predefined temperature threshold is provided. Temperature sensors in the compressed air system monitor temperature and a control processor determines when the temperature is at or below the predefined temperature threshold. When it is determined temperature is at or below the predefined temperature threshold, the control processor operates a solenoid blow-down valve that depressurizes the compressed air system.
Multistage Blowdown Valve For A Compressor System
US Patent:
6283716, Sep 4, 2001
Filed:
Oct 21, 1999
Appl. No.:
9/422284
Inventors:
Steven D. Centers - Daphne AL
Assignee:
Coltec Industries Inc. - Charlotte NC
International Classification:
F04B 4900
US Classification:
417 18
Abstract:
A multi-stage blowdown valve is provided that uses a single control signal to simultaneously decompress the interstage and the second stage in a compressor system. The valve uses a series of sliding spools located linearly within a single bore to either prevent or allow fluid communication between two isolated passageways each having an inlet port and a discharge port. The valve, when used as a two stage blowdown valve in a multi-stage compressor system, can prevent compressor failure from occurring by ensuring that both the interstage and the second stages are decompressed, not only the interstage.