Mark Alan Stevenson

US Patent:

6802768, Oct 12, 2004

Filed:

May 22, 2002

Appl. No.:

10/153100

Inventors:

Mark W. Stevenson - Appleton NY
Raoul Huberty - Bertranbe, LU

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

B24D 1300

US Classification:

454 69, 25112911

Abstract:

A motorized valve assembly for use in a vehicle heating, ventilating, and air conditioning module comprises a valve having at least one flap and is pivotable about a pivot axis. A drive unit is affixed to the valve, and a drive interface is operably connected to the drive unit for inducing a pivoting force about the pivot axis.

US Patent:

6979258, Dec 27, 2005

Filed:

Dec 3, 2003

Appl. No.:

10/727094

Inventors:

Mark W. Stevenson - Appleton NY, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

B60S001/54

US Classification:

454121, 454126, 454143

Abstract:

In a ventilation system of a motor vehicle, a film valve can selectively open and close an air path opening defined by a housing with a rib or projection that encircles such opening. The rib can define a point contact between the film valve and the housing when viewed in cross-section. The rib geometry can include substantially straight edges in cross-section and/or can include arcuate edges. Different geometry can define the rib at different cross-sections. The point contact defined between the rib and the film valve substantially reduces noise generated when the film valve moves relative to the rib, especially when the film valve has been subjected to a harsh environment.

US Patent:

7174918, Feb 13, 2007

Filed:

Feb 1, 2005

Appl. No.:

11/047933

Inventors:

Mark W. Stevenson - Appleton NY, US
Gregory J. Kowalski - Cambria NY, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F16K 11/18

US Classification:

137883, 251251, 454139

Abstract:

A novel air flow control valve for an air outlet in an HVAC housing provides for strong, even seal pressure all the way around the edge of the opening. In stead of a swinging door hinged at one edge of the opening, in which seal pressure is strong on the hinge edge but weaker on the opposite edge, a flat panel is moved straight toward and away from the opening. In the closed position, the sealing pressure is even all the way around. The sealing panel is moved back and forth by a rotary cam mechanism.

US Patent:

7241215, Jul 10, 2007

Filed:

Jul 27, 2005

Appl. No.:

11/190451

Inventors:

Mark W. Stevenson - Appleton NY, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

F24F 7/00

US Classification:

454121, 454139

Abstract:

The invention provides a fabric valve assembly for a climate control system of a vehicle. The fabric valve assembly includes a housing positionable in a vehicle. The housing has at least one edge defining at least one housing aperture for directing movement of an air stream. The fabric valve assembly also includes a plastic frame defining at least one frame aperture. The plastic frame is operable to move between a first position parallel to and spaced from the at least one housing aperture and a second position spaced from the first position. The fabric valve assembly also includes a cloth member fixedly engaged with the plastic frame. The cloth member extends taut relative to the at least one frame aperture to close and seal the at least one housing aperture when the plastic frame is in the first position.

US Patent:

7527551, May 5, 2009

Filed:

May 3, 2005

Appl. No.:

11/120737

Inventors:

Gregory J. Kowalski - Cambria NY, US
Mark W. Stevenson - Appleton NY, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

B60H 1/00
F24F 7/007

US Classification:

454121, 454 69, 454156, 165 43, 251901

Abstract:

A valve includes a film having side edges and an opening to extend across a passage in a housing of a HVAC system. The film has a circular aperture in the film adjacent each rounded corner of each opening for relieving stress. Either or both of the leading edge and the trailing edge of the film are undulated to prevent deformation of the edges. A pair of racks is disposed on the film and sprockets engage the teeth of the racks for moving the racks and the film linearly. Each rack includes a strap and bearing member for retaining the associated sprocket in engagement with the teeth. The bearing member is in rolling engagement with a bearing surface of the associated strap as it rotates with the sprockets.

US Patent:

8113268, Feb 14, 2012

Filed:

Aug 7, 2008

Appl. No.:

12/187782

Inventors:

Mark W. Stevenson - Appleton NY, US

Assignee:

Delphi Technologies, Inc. - Troy MI

International Classification:

B60H 1/00

US Classification:

165 42, 165 43, 165103, 237 123 A, 237 123 B, 454156, 454160, 454161, 251212, 137865, 137870, 137628, 13762544

Abstract:

An air conditioning system of the present invention for an automotive vehicle includes a housing having at least two sections connected by two side by side air passage. A blower device of the air conditioning system discharges air into the housing. An evaporator is disposed in one of the sections for taking heat from the air discharged from the blower device to produce cool air. A heater is disposed in the other section positioned downstream of the evaporator for adding heat to the cool air to produce warm air. First and second sliding valve plates mechanically communicating with a driving mechanism of the present invention are supported by the housing for selectively closing the two side by side air passages thereby regulating air flow of cool and warm air.

US Patent:

20030034075, Feb 20, 2003

Filed:

Aug 17, 2001

Appl. No.:

09/932340

Inventors:

Mark Stevenson - Appleton NY, US
Gerald Goupil - N. Tonawanda NY, US

International Classification:

F16K011/072

US Classification:

137/625220

Abstract:

An electromagnetic ventilation valve includes a fixed member defining at least a first aperture therethrough. A movable member having at least one magnetically reactive element positioned thereon is juxtaposed next to the fixed member. The movable member further defines at least a second aperture therethrough and is translatable between at least an opened and a closed position. The opened position corresponds to the first and second apertures substantially in full registration one with the other and defining an air passage therethrough. The closed position corresponds to the first and second apertures in non-registration to close the air passage. At least one electromagnet is located proximate to the magnetically reactive element such that activation of the electromagnet causes the movable member to translate between the opened and closed positions.

US Patent:

20060042778, Mar 2, 2006

Filed:

Apr 27, 2005

Appl. No.:

11/115567

Inventors:

Mark Stevenson - Appleton NY, US

International Classification:

B60H 1/00

US Classification:

165041000

Abstract:

An air conditioning system of the present invention for an automotive vehicle includes a housing having at least two sections connected by two side by side air passage. A blower device of the air conditioning system discharges air into the housing. An evaporator is disposed in one of the sections for taking heat from the air discharged from the blower device to produce cool air. A heater is disposed in the other section positioned downstream of the evaporator for adding heat to the cool air to produce warm air. First and second sliding valve plates mechanically communicated with a driving mechanism of the present invention are supported by the housing for selectively closing the two side by side air passages thereby regulating air flow of cool and warm air.