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Ahmed F Abdelwahab

from Clarence Center, NY
Age ~55

Ahmed Abdelwahab Phones & Addresses

  • 5903 Monaghan Ln, Clarence Ctr, NY 14032
  • Clarence Center, NY
  • East Amherst, NY
  • Grand Island, NY
  • 78 Raintree Is, Tonawanda, NY 14150
  • 120 Remington Ave, Syracuse, NY 13210 (315) 471-0964
  • Manlius, NY

Publications

Wikipedia References

Ahmed Abdelwahab Photo 9

Ahmed Abdelwahab

Us Patents

Leaned Centrifugal Compressor Airfoil Diffuser

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US Patent:
7448852, Nov 11, 2008
Filed:
Aug 9, 2005
Appl. No.:
11/199254
Inventors:
Ahmed Abdelwahab - Tonawanda NY, US
Robert Leroy Baker - Williamsville NY, US
Gordon J. Gerber - Boston NY, US
Assignee:
Praxair Technology, Inc. - Danbury CT
International Classification:
F04D 29/44
US Classification:
4152083, 4152111, 4152112
Abstract:
A low solidity vaned airfoil diffuser for a centrifugal compressor wherein each blade has a lean angle greater than zero and wherein the hub stagger angle may be the same as or may be different from the shroud stagger angle for each blade.

Compressor With Large Diameter Shrouded Three Dimensional Impeller

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US Patent:
7452187, Nov 18, 2008
Filed:
Aug 9, 2005
Appl. No.:
11/199255
Inventors:
Robert Leroy Baker - Williamsville NY, US
Ahmed Abdelwahab - Tonawanda NY, US
Gordon J. Gerber - Boston NY, US
Assignee:
Praxair Technology, Inc. - Danbury CT
International Classification:
F04D 29/26
US Classification:
416188
Abstract:
A compressor having a defined large diameter impeller having an integral shroud and having a three dimensional gas flow path defined by the impeller hub surface, blades and the shroud and having a large axially oriented inlet or inducer section with aggressive inducer blades, a defined outlet section geometry, and continuous blade geometries between the inlet and outlet sections.

Systems And Methods For Gas Separation Using High-Speed Permanent Magnet Motors With Centrifugal Compressors

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US Patent:
7785405, Aug 31, 2010
Filed:
Mar 27, 2008
Appl. No.:
12/056887
Inventors:
Michael S. Manning - Buffalo NY, US
James Smolarek - Boston NY, US
Ahmed Abdelwahab - Grand Island NY, US
Murali Chinta - East Amherst NY, US
Assignee:
Praxair Technology, Inc. - Danbury CT
International Classification:
B01D 53/047
F04D 27/00
US Classification:
96112, 96113, 417 19, 417 441
Abstract:
Systems and processes are provided for gas separation using high-speed permanent magnet variable-speed motors to accelerate and decelerate centrifugal compressors suitable for use in pressure swing adsorption (PSA) or vacuum pressure swing adsorption (VPSA) processes.

Airfoil Diffuser For A Centrifugal Compressor

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US Patent:
8016557, Sep 13, 2011
Filed:
Sep 24, 2007
Appl. No.:
11/903592
Inventors:
Ahmed Abdelwahab - Grand Island NY, US
Gordon J. Gerber - Boston NY, US
Assignee:
Praxair Technology, Inc. - Danbury CT
International Classification:
F04D 29/44
US Classification:
4152083, 4152112
Abstract:
An airfoil diffuser for a centrifugal compressor formed by a diffuser passage area and a plurality of diffuser blades located within the diffuser passage area. The diffuser passage area is defined between a hub plate and a shroud of the centrifugal compressor. Each of the diffuser blades has a twisted configuration in a stacking direction as taken between the hub plate and an outer portion of the shroud located opposite to the hub plate. As a result of the twisted configuration, the diffuser blade inlet blade angle decreases from the hub plate to the outer portion of the shroud and solidity measurements at leading edges of the diffuser plates vary between a lower solidity value measured at the hub plate of less than 1. 0 and a high solidity value measured at the outer portion of the shroud of no less than 1.

Method And Apparatus For Filling A Pressure Vessel Having Application To Vehicle Fueling

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US Patent:
6792981, Sep 21, 2004
Filed:
Apr 9, 2003
Appl. No.:
10/409130
Inventors:
Michael S. Manning - Buffalo NY
James Smolarek - Boston NY
Robert B. Bollinger - Getzville NY
Ahmed Abdelwahab - Tonawanda NY
Assignee:
Praxair Technology, Inc. - Danbury CT
International Classification:
B65B 3100
US Classification:
141 3, 141 4, 141 18, 141 47, 141 94
Abstract:
A method and apparatus for introducing a compressed gas into a pressure vessel, for instance, hydrogen into a vehicle fuel tank, in which hydrogen is compressed in an initial and final compressions stages which can be powered by a common source. The initial compression stage can continually operate to compress the gas in a lower pressure storage bank during the time that hydrogen is dispensed to a vehicle fuel tank. In time periods between dispensing, the gas from the lower pressure stage and from the lower pressure storage bank is compressed in the final compression stage and stored in a higher pressure storage bank. When the pressure vessel is to be filled, the compressor compresses the gas from the higher pressure storage bank to fill the vessel.

Method For Compressing An Incoming Feed Air Stream In A Cryogenic Air Separation Plant

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US Patent:
20190234413, Aug 1, 2019
Filed:
Apr 11, 2019
Appl. No.:
16/381046
Inventors:
Henry E. Howard - Grand Island NY, US
Carl L. Schwarz - East Aurora NY, US
Ahmed F. Abdelwahab - Clarence Center NY, US
Lee J. Rosen - Buffalo NY, US
Nick J. Degenstein - The Woodlands TX, US
Reh-Lin Chen - Williamsville NY, US
International Classification:
F04D 27/00
F25J 3/04
F04D 27/02
F04D 29/26
F04D 17/12
F04D 25/16
Abstract:
A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.

Method For Compressing An Incoming Feed Air Stream In A Cryogenic Air Separation Plant

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US Patent:
20190234414, Aug 1, 2019
Filed:
Apr 11, 2019
Appl. No.:
16/381063
Inventors:
Henry E. Howard - Grand Island NY, US
Carl L. Schwarz - East Aurora NY, US
Ahmed F. Abdelwahab - Clarence Center NY, US
Lee J. Rosen - Buffalo NY, US
Nick J. Degenstein - The Woodlands TX, US
Reh-Lin Chen - Williamsville NY, US
International Classification:
F04D 27/00
F25J 3/04
F04D 27/02
F04D 29/26
F04D 17/12
F04D 25/16
Abstract:
A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.

Method For Compressing An Incoming Feed Air Stream In A Cryogenic Air Separation Plant

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US Patent:
20190234415, Aug 1, 2019
Filed:
Apr 11, 2019
Appl. No.:
16/381078
Inventors:
Henry E. Howard - Grand Island NY, US
Carl L. Schwarz - East Aurora NY, US
Ahmed F. Abdelwahab - Clarence Center NY, US
Lee J. Rosen - Buffalo NY, US
Nick J. Degenstein - East Amherst NY, US
Reh-Lin Chen - Williamsville NY, US
International Classification:
F04D 27/00
F25J 3/04
F04D 27/02
F04D 29/26
F04D 17/12
F04D 25/16
Abstract:
A method for compression of an incoming feed air stream using at least two variable speed compressor drive assemblies controlled in tandem is provided. The first variable speed drive assembly drives at least one compression stage in the lower pressure compressor unit driven while the second variable speed drive assembly drives higher pressure compression stage disposed either in the common air compression train or the split functional compression train of the air separation plant. The first and second variable speed drive assemblies are preferably high speed, variable speed electric motor assemblies each having a motor body, a motor housing, and a motor shaft with one or more impellers directly and rigidly coupled to the motor shaft via a sacrificial rigid shaft coupling.
Ahmed F Abdelwahab from Clarence Center, NY, age ~55 Get Report