Najeeb M Kuzhiyil

US Patent:

20220316387, Oct 6, 2022

Filed:

Jun 9, 2022

Appl. No.:

17/836015

Inventors:

- Norwalk CT, US
Pradheepram Ottikkutti - Lawrence Park PA, US
Rogier Giepman - Garching, DE
Michael Majewski - Erie PA, US
Kevin McElhaney - Edinboro PA, US
Najeeb Kuzhiyil - McKinney TX, US
Adam Edgar Klingbeil - Ballston Lake NY, US
Adam C. Felton - Grove City PA, US
Christopher Joseph Homison - Erie PA, US

International Classification:

F02B 37/14
F02B 39/10
F02D 29/02
F02D 41/00
F02B 37/02
F02B 37/04

Abstract:

A method and a turbine-compressor assembly of a system having a turbine-compressor device fluidly coupled with a heat source, a compressor, and a turbine via plural valves. A power device may be coupled with the turbine-compressor device. A controller may control operation of the plural valves to control movement of fluids within the assembly to selectively switch between the turbine-compressor device operating in one of plural modes. In a turbine mode of operation, the turbine-compressor device may generate electrical power and direct the electrical power to the power device. In a compressor mode of operation, the turbine-compressor device may receive electrical power from the power device to consume the electrical power.

US Patent:

20210284769, Sep 16, 2021

Filed:

May 3, 2021

Appl. No.:

17/240437

Inventors:

- Baytown TX, US
Mark H. Li - Sugar Land TX, US
Jennifer L. Rapp - Houston TX, US
Pramod J. Nandapurkar - Seabrook TX, US
Brian H. Wahn - Houston TX, US
Craig J. Emett - Houston TX, US
Najeeb M. Kuzhiyil - League City TX, US
Jian Yang - Houston TX, US

International Classification:

C08F 210/16
C08F 4/659
C08F 4/6592
C07C 2/30
C07C 2/32

Abstract:

In at least one embodiment, a process to produce a poly alpha-olefin (PAO) includes introducing a first alpha-olefin to a first catalyst system comprising activator and a metallocene compound into a continuous stirred tank reactor or a continuous tubular reactor under first reactor conditions to form a first reactor effluent. The first alpha-olefin is introduced to the reactor at a flow rate of about 100 g/hr or more. The first reactor effluent includes at least 60 wt % of PAO dimer and 40 wt % or less of higher oligomers, where the higher oligomers are oligomers that have a degree of polymerization of 3 or more. The process includes introducing the first reactor effluent and a second alpha-olefin to a second catalyst composition including an acid catalyst in a second reactor to form a second reactor effluent comprising PAO trimer.

US Patent:

20200256243, Aug 13, 2020

Filed:

Dec 13, 2019

Appl. No.:

16/713266

Inventors:

- Norwalk CT, US
Pradheepram Ottikkutti - Lawrence Park PA, US
Rogier Giepman - Garching, DE
Michael Majewski - Erie PA, US
Kevin McElhaney - Erie PA, US
Najeeb Kuzhiyil - McKinney TX, US

International Classification:

F02B 37/14

Abstract:

A method and a turbine-compressor assembly of a system having an engine includes an upstream valve coupled with a compressor and a turbine-compressor device, a downstream valve coupled with a turbine and the device, and a controller to control the upstream, downstream, and a control valve. The controller selectively operates the device in a plurality of operating modes. In a turbine mode of operation, the upstream valve directs inlet air to the compressor, the turbine receives engine exhaust, the downstream valve directs first turbine exhaust from the turbine to the device, and the control valve directs second turbine exhaust from the device to an outlet. In a compressor mode of operation, the control valve directs the inlet air to the device, the upstream valve directs first compressed air from the device to the compressor, and the downstream valve directs the first turbine exhaust from the turbine to the outlet.

US Patent:

20190359744, Nov 28, 2019

Filed:

Aug 9, 2019

Appl. No.:

16/537349

Inventors:

- Baytown TX, US
Mark H. Li - Sugarland TX, US
Jennifer L. Rapp - Houston TX, US
Monica D. Lotz - Houston TX, US
Craig J. Emett - Houston TX, US
Najeeb M. Kuzhiyil - League City TX, US
Jian Yang - Houston TX, US

International Classification:

C08F 10/14
C08F 4/6592
C08F 4/659

Abstract:

The present disclosure generally relates to processes to produce alpha-olefin oligomers and poly alpha-olefins. In an embodiment, a process to produce a poly alpha-olefin (PAO) includes introducing a first alpha-olefin and a first catalyst system comprising a metallocene compound into a continuous stirred tank reactor or a continuous tubular reactor under first reactor conditions to form a first reactor effluent. The alpha-olefin is introduced to the reactor at a flow rate of about 100 g/hr or more. The first reactor effluent includes PAO dimer comprising at least 96 mol % of vinylidene and 4 mol % or less of trisubstituted vinylene and disubstituted vinylene, based on total moles of vinylidene, trisubstituted vinylene, and disubstituted vinylene. The method includes introducing the first reactor effluent, a second alpha-olefin and a second catalyst composition comprising an acid catalyst into a second reactor under second reactor conditions to form a second reactor effluent comprising PAO trimer.

US Patent:

20190359748, Nov 28, 2019

Filed:

Aug 9, 2019

Appl. No.:

16/537381

Inventors:

- Baytown TX, US
Mark H. Li - Sugar Land TX, US
Jennifer L. Rapp - Houston TX, US
Pramod J. Nandapurkar - Seabrook TX, US
Brian H. Wahn - Houston TX, US
Craig J. Emett - Houston TX, US
Najeeb M. Kuzhiyil - League City TX, US
Jian Yang - Houston TX, US

International Classification:

C08F 210/16
C08F 4/6592
C08F 4/659

Abstract:

In at least one embodiment, a process to produce a poly alpha-olefin (PAO) includes introducing a first alpha-olefin to a first catalyst system comprising activator and a metallocene compound into a continuous stirred tank reactor or a continuous tubular reactor under first reactor conditions to form a first reactor effluent. The first alpha-olefin is introduced to the reactor at a flow rate of about 100 g/hr or more. The first reactor effluent includes at least 60 wt % of PAO dimer and 40 wt % or less of higher oligomers, where the higher oligomers are oligomers that have a degree of polymerization of 3 or more. The process includes introducing the first reactor effluent and a second alpha-olefin to a second catalyst composition including an acid catalyst in a second reactor to form a second reactor effluent comprising PAO trimer.

US Patent:

20190156600, May 23, 2019

Filed:

Jan 18, 2019

Appl. No.:

16/251897

Inventors:

- Norwalk CT, US
Igor Tokarev - Niskayuna NY, US
Najeeb M. Kuzhiyil - McKinney TX, US
Pradheepram Ottikkutti - Lawrence Park PA, US

International Classification:

G07C 5/08
F16N 29/04
B61C 17/08

Abstract:

A locomotive sensor system includes a sensor configured to be in contact with lubricant within an engine of a locomotive. The sensor includes a sensing region circuit that is configured to generate stimuli at different times during an operational life of the engine. The system also includes one or more processors configured to receive signals from the sensor. The signals are representative of responses of the lubricant to the stimuli. The one or more processors are configured to analyze the responses and determine a characteristic of the lubricant that represents one or more of a total base number (TBN) or a total acid number (TAN) of the lubricant. The are configured to determine an unhealthy state of one or more of the engine or the lubricant based on the characteristic of the lubricant that is determined.

US Patent:

20180231485, Aug 16, 2018

Filed:

Feb 13, 2017

Appl. No.:

15/431382

Inventors:

- Schenectady NY, US
Pradheepram Ottikkutti - Lawrence Park PA, US
Najeeb Kuzhiyil - McKinney TX, US

International Classification:

G01N 27/12
F02D 41/00
F02D 41/26

Abstract:

A system includes an impedance gas sensor configured to be in contact with one or more hydrocarbons. The impedance sensor includes electrodes and a sensing region circuit that is configured to have a sensing material and to generate electrical stimuli to the sensing material upon exposure to one or more hydrocarbons at one or more of a reduced heater voltage or a reduced sensing region temperature as compared to a prescribed heater voltage or a prescribed sensing region temperature. The system also includes one or more processors configured to receive electrical signals from the sensor, where the electrical signals are representative of impedance responses of the sensing material to one or more hydrocarbons. The one or more processors also are configured to analyze the impedance responses and determine an amount of at least one hydrocarbon of interest in the one or more hydrocarbons.

US Patent:

20180158261, Jun 7, 2018

Filed:

Jan 31, 2018

Appl. No.:

15/884889

Inventors:

- Schenectady NY, US
Najeeb M. Kuzhiyil - McKinney TX, US
Radislav Alexandrovich Potyrailo - Niskayuna NY, US

International Classification:

G07C 5/08
G07C 5/00
F16N 29/04
G01N 33/28

Abstract:

A system includes a sensor configured to be in contact with lubricant within an engine of a vehicle system. The sensor includes a sensing region circuit that is configured to generate stimuli at different times during an operational life of the engine. The system also includes one or more processors configured to receive signals from the sensor. The signals are representative of responses of the lubricant to the stimuli. The one or more processors are configured to analyze the responses and determine a characteristic of the lubricant that represents one or more of a total base number (TBN) or a total acid number (TAN) of the lubricant. The one or more processors are configured to determine an unhealthy state of one or more of the engine or the lubricant based on the characteristic of the lubricant that is determined.