Francis J Parnin

US Patent:

8051869, Nov 8, 2011

Filed:

May 22, 2009

Appl. No.:

12/470903

Inventors:

Francis Parnin - Suffield CT, US
Enzo DiBenedetto - Torrington CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F16K 17/36

US Classification:

137 1, 137 38, 137533, 137597

Abstract:

A valve includes a valve body defining a valve cavity. The valve body has first and second inlet ports, an outlet port, and a dump port. A weighted member is positioned in the valve cavity and is movable between first and second positions. In the first position, the first inlet port is fluidically connected to the outlet port and the second inlet port is fluidically connected to the dump port. In the second position, the second inlet port and the dump port are fluidically connected to the outlet port.

US Patent:

8230974, Jul 31, 2012

Filed:

May 22, 2009

Appl. No.:

12/470823

Inventors:

Francis Parnin - Suffield CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F16N 13/00
F01M 9/00

US Classification:

184 611

Abstract:

A pump system for lubricating a bearing in a gear system of a gas turbine engine includes a main pump, an auxiliary pump, an auxiliary reservoir, a sump, and a valve system. The main pump is fluidically connected to the bearing through a main supply passage. The auxiliary pump is fluidically connected to the bearing through an auxiliary supply passage. The valve system transfers lubricating liquid from the main pump to the bearing under a first set of engine operating conditions. The valve system transfers lubricating liquid from the auxiliary reservoir to the sump and from the sump through the auxiliary pump to the bearing under a second set of engine operating conditions. The valve system transfers lubricating liquid from the auxiliary reservoir through the auxiliary pump, bypassing the sump, to the bearing under a third set of engine operating conditions.

US Patent:

8424646, Apr 23, 2013

Filed:

Jul 10, 2006

Appl. No.:

11/483881

Inventors:

Francis J. Parnin - Suffield CT, US
Denman H. James - Windsor CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F16N 29/00

US Classification:

184 6

Abstract:

A lubrication system for a turbine engine or other application includes a first or primary branch and a second or secondary branch , a main pump , a lubricant distributor for receiving lubricant from the main pump and distributing the lubricant to the branches, and a auxiliary pump in the second branch downstream of the distributor. The system is operable in a normal mode of operation in which lubricant flows from a lubricant source into the primary and secondary branches and is also operable in a backup mode of operation in which lubricant backflows from the primary branch into the secondary branch.

US Patent:

8490752, Jul 23, 2013

Filed:

Oct 24, 2006

Appl. No.:

11/585439

Inventors:

Denman H. James - Windsor CT, US
Francis J. Parnin - Suffield CT, US

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F01D 25/18

US Classification:

184 611

Abstract:

A method for determining volumes of working fluids used in fluid operated systems that would be present at selected temperatures in working fluid reservoirs provided in those fluid operated systems based on measured volumes of the working fluids present in the reservoirs at measured temperatures, systems volumes and densities of the working fluids at the selected and measured temperatures.

US Patent:

20070085278, Apr 19, 2007

Filed:

Oct 18, 2005

Appl. No.:

11/253248

Inventors:

Todd Davis - Tolland CT, US
Armando Amador - Wethersfield CT, US
Francis Parnin - Suffield CT, US

International Classification:

F16J 15/44

US Classification:

277411000

Abstract:

A sealing system for use with at least one rotating shaft has a tandem seal arrangement contacting a surface of the at least one rotating shaft. The tandem seal arrangement includes at least one pair of segmented ring assemblies. Each of the segmented ring assemblies contacts the surface of the at least one shaft.

US Patent:

20120324899, Dec 27, 2012

Filed:

Jun 22, 2011

Appl. No.:

13/165967

Inventors:

Enzo DiBenedetto - Torrington CT, US
Francis Parnin - Suffield CT, US
Denman H. James - Windsor CT, US
Robert E. Peters - Portland CT, US

Assignee:

UNITED TECHONOLOGIES CORPORATION - Hartford CT

International Classification:

F02C 7/06

US Classification:

60772, 60 3908

Abstract:

An assembly includes a gas turbine engine, a compartment wall, and a gutter system. The gas turbine engine has a spool connected to a fan shaft via a gear system. The compartment wall is positioned radially outward from the gear system. The gutter system is positioned radially outward from the gear system for capturing lubricating liquid slung from the gear system and positioned radially inward of the compartment wall. The gutter system includes a gutter and a flow passage fluidically connected to the gutter. The flow passage has a plurality of holes that allow the lubricating liquid to pass through the flow passage into a space between the flow passage and the compartment wall.

US Patent:

20130048091, Feb 28, 2013

Filed:

Aug 29, 2011

Appl. No.:

13/220631

Inventors:

Enzo DiBenedetto - Torrington CT, US
Francis Parnin - Suffield CT, US
Robert E. Peters - Portland CT, US

International Classification:

F17D 3/00
F16K 31/00
F04D 29/56

US Classification:

137 2, 415148, 13762427

Abstract:

An exemplary valve device for controlling flow of a turbomachine fluid includes a housing and a flow control assembly within the housing. The housing has a first inlet, a second inlet, and an outlet. Movement of the housing to a first orientation causes the flow control assembly to move to a first position to restrict flow of a turbomachine fluid into the housing through the second inlet. Movement of the housing to a second orientation causes the flow control assembly to move to a second position to restrict flow of the turbomachine fluid into the housing through the first inlet.

US Patent:

20130280043, Oct 24, 2013

Filed:

Apr 19, 2012

Appl. No.:

13/450533

Inventors:

Francis Parnin - Suffield CT, US
Armando Amador - Wethersfield CT, US

International Classification:

F01D 25/18
G01M 3/04

US Classification:

415118, 73 40

Abstract:

In accordance with an embodiment, a gas turbine engine is provided having a bearing chamber leak detection system. The gas turbine engine includes a rotatable shaft, a bearing assembly supporting the rotatable shaft, and a plurality of bearing chamber seals surrounding the rotatable shaft creating an annular bearing chamber enclosing the bearing assembly. One or more walls substantially surrounding the bearing chamber create a plenum between the walls and the bearing chamber, and a pressurized air inlet to the plenum is provided. The pressurized air inlet includes an airflow sensor configured and positioned to sense a flow of pressurized air into the plenum, such that airflow at the sensor is indicative of airflow from the plenum into the bearing chamber via one or more of the plurality of bearing chamber seals.