Alexander D Rabinovich

US Patent:

6560958, May 13, 2003

Filed:

Aug 23, 1999

Appl. No.:

09/379003

Inventors:

Leslie Bromberg - Sharon MA
Daniel R. Cohn - Chestnut Hill MA
Alexander Rabinovich - Swampscott MA

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

F01N 300

US Classification:

60275, 60286, 60295, 60301

Abstract:

Emission abatement system. The system includes a source of emissions and a catalyst for receiving the emissions. Suitable catalysts are absorber catalysts and selective catalytic reduction catalysts. A plasma fuel converter generates a reducing gas from a fuel source and is connected to deliver the reducing gas into contact with the absorber catalyst for regenerating the catalyst. A preferred reducing gas is a hydrogen rich gas and a preferred plasma fuel converter is a plasmatron. It is also preferred that the absorber catalyst be adapted for absorbing NO.

US Patent:

6655324, Dec 2, 2003

Filed:

Nov 14, 2001

Appl. No.:

09/990910

Inventors:

Daniel R. Cohn - Chestnut Hill MA
Leslie Bromberg - Sharon MA
Alexander Rabinovich - Swampscott MA
John B. Heywood - Newton MA

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

F02B 4310

US Classification:

123 1A, 123304, 123431, 12356811, 123DIG 12

Abstract:

A hydrogen enhanced gasoline engine system using high compression ratio is optimized to minimize NOx emissions, exhaust aftertreatment catalyst requirements, hydrogen requirements, engine efficiency and cost. In one mode of operation the engine is operated very lean (equivalence ratio Ã=0. 4 to 0. 7) at lower levels of power. Very lean operation reduces NOx to very low levels. A control system is used to increase equivalence ratio at increased torque or power requirements while avoiding the knock that would be produced by high compression ratio operation. The increased equivalence ratio reduces the amount of hydrogen required to extend the lean limit in order to avoid misfire and increases torque and power. The engine may be naturally aspirated, turbocharged, or supercharged.

US Patent:

6718753, Apr 13, 2004

Filed:

Jul 17, 2002

Appl. No.:

10/197391

Inventors:

Leslie Bromberg - Sharon MA
Daniel R. Cohn - Chestnut Hill MA
Alexander Rabinovich - Swampscott MA

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

F01N 300

US Classification:

60275

Abstract:

Emission abatement system. The system includes a source of emissions and a catalyst for receiving the emissions. Suitable catalysts are absorber catalysts and selective catalytic reduction catalysts. A plasma fuel converter generates a reducing gas from a fuel source and is connected to deliver the reducing gas into contact with the absorber catalyst for regenerating the catalyst. A preferred reducing gas is a hydrogen rich gas and a preferred plasma fuel converter is a plasmatron. It is also preferred that the absorber catalyst be adapted for absorbing NO.

US Patent:

6793899, Sep 21, 2004

Filed:

Sep 21, 2001

Appl. No.:

09/960046

Inventors:

Leslie Bromberg - Sharon MA
Daniel R. Cohn - Chestnut Hill MA
Alexander Rabinovich - Swampscott MA
Nikolai Alexeev - Moscow, RU

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

B01J 804

US Classification:

422188, 422189, 422190, 422184, 422198, 422211, 481279, 48DIG 8, 429 17, 429 19

Abstract:

A plasmatron-catalyst system. The system generates hydrogen-rich gas and comprises a plasmatron and at least one catalyst for receiving an output from the plasmatron to produce hydrogen-rich gas. In a preferred embodiment, the plasmatron receives as an input air, fuel and water/steam for use in the reforming process. The system increases the hydrogen yield and decreases the amount of carbon monoxide.

US Patent:

6881386, Apr 19, 2005

Filed:

May 30, 2002

Appl. No.:

10/158615

Inventors:

Alexander Rabinovich - Swampscott MA, US
Nikolai Alexeev - Moscow, RU
Leslie Bromberg - Sharon MA, US
Daniel R. Cohn - Chestnut Hill MA, US
Andrei Samokhin - Moscow, RU

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

B01J019/08

US Classification:

42218604, 42218622, 42218625, 42218628, 123 3

Abstract:

A novel apparatus and method is disclosed for a plasmatron fuel converter (“plasmatron”) that efficiently uses electrical energy to produce hydrogen rich gas. The volume and shape of the plasma discharge is controlled by a fluid flow established in a plasma discharge volume. A plasmatron according to this invention produces a substantially large effective plasma discharge volume allowing for substantially greater volumetric efficiency in the initiation of chemical reactions within a volume of bulk fluid reactant flowing through the plasmatron.

US Patent:

6981472, Jan 3, 2006

Filed:

Nov 17, 2003

Appl. No.:

10/715933

Inventors:

Leslie Bromberg - Sharon MA, US
Alexander Rabinovich - Swampscott MA, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

F02B 43/10

US Classification:

123 3, 123525, 123 27 GE

Abstract:

A method and apparatus for operation of an internal combustion engine running under a homogeneous charge compression ignition (HCCI) mode with fuel partially reformed by an onboard fuel reformer. In one embodiment, the onboard fuel reformer is a plasmatron fuel converter. The temperature and composition of the gaseous charge into the cylinders of the engine can be adjusted by mixing the charge into the cylinder (which contains air, exhaust gas and/or unreformed fuel) with hydrogen rich gas from the onboard reformer. The fuel reformer transforms the fuel to a mixture of hydrogen, CO and other light hydrocarbons. By adjusting operation in the reformer, the composition of the reformate can be altered. In addition to thermal management of the cylinder charge, the reformate can be used as a fuel blending agent in order to adjust the octane/cetane number of the air charge and thus control the ignition timing of the overall fuel/air charge to the cylinder.

US Patent:

7028644, Apr 18, 2006

Filed:

Oct 2, 2003

Appl. No.:

10/677975

Inventors:

Daniel R. Cohn - Chestnut Hill MA, US
Leslie Bromberg - Sharon MA, US
Alexander Rabinovich - Swampscott MA, US
John B. Heywood - Newton MA, US

Assignee:

Massachusetts Institute of Technology - Cambridge MA

International Classification:

F02B 75/12

US Classification:

123 1A, 12356811, 12340621

Abstract:

A hydrogen enhanced engine system using high compression ratio is optimized to minimize NOx emissions, exhaust aftertreatment catalyst requirements, hydrogen requirements, engine efficiency and cost. In one mode of operation the engine is operated very lean (equivalence ratio φ=0. 4 to 0. 7) at lower levels of power. Very lean operation reduces NOx to very low levels. A control system is used to increase equivalence ratio at increased torque or power requirements while avoiding the knock that would be produced by high compression ratio operation. The increased equivalence ratio reduces the amount of hydrogen required to extend the lean limit in order to avoid misfire and increases torque and power. The engine may be naturally aspirated, turbocharged, or supercharged.

US Patent:

7165196, Jan 16, 2007

Filed:

Sep 3, 2004

Appl. No.:

10/934874

Inventors:

Ofer Porat - Westborough MA, US
Jinhua Chen - Shrewsbury MA, US
Marlon Ramroopsingh - Attleboro MA, US
Alexander Rabinovich - Acton MA, US

Assignee:

EMC Corporation - Hopkinton MA

International Classification:

G01R 31/28

US Classification:

714716, 714724

Abstract:

A test system and method for testing a serializer/de-serializer system. The system includes a pair of serializer/de-serializers each having a serial data receive port and a serial data transmit port. The serializer/de-serializers are adapted to be placed in a loop-back mode in response to a loop-back signal to pass data fed to the serial data receive port to the serial data transmit port. A backplane connects the serial data transmit port of one serializer/de-serializer to the serial data receive port of a second one of the serializer/de-serializers. A tester passes data to the first serial data receive port and receives data from the data transmit port of the second one of the serializer/de-serializers with both serializer/de-serializes placed in the loop-back mode.