Dana Corporation

Dana Automotive Systems Group, LLC

Frank Walter Popielas

Jeffery A Foster

Colin C Chen

Kanu G Shah

Calin Matias

Colin Ching-Ho Chen

Rohit Ramkumar

Dennis F Person

Howard M Robins

James S Pietraski

Lawrence E Peck

Mark Boogemans

James T Mikos

Marsha A Minkov

David J Schweiger

Martin Mockenhaupt

Brent R Boldt

Thomas P Plunkett

Michael J Kestly

Alexander S Williamson

Frank C Grant-Acquah

Kevin T Shaver

Ernest A Oxenknecht

Troy D Mc Arthy

Tom Plunkett

Joel Edmund Wiegert

Paul Fatora

Ryan P Moffat

Mike Kestly

Slip joint having a stacked washer seal, a male part and a female part. The female part has a small and a large inner diameter. The male part has substantially constant inner and outer diameters and a ring on the outer diameter. A gap is located between the male and female part. At least two washers and a flat shim are located in the gap. Each washer and flat shim has a first side, a second side, a first end and a second end. The first side of a first washer abuts an end of the male part. A second side of the washer contacts a first side of a flat shim. The second side of the shim contacts the first side of a second washer. The second side of the second washer contacts a first side of a second flat shim or an end of the female part.

Stacked washer slip joint seal

A gasket has a first active layer with a bead. A first spacer layer is located below the first active layer. An intermediate layer is provided with a wave portion. The intermediate layer is located below the first spacer layer. A bottom spacer layer is located beneath the intermediate layer. The bottom spacer may have a bead.

Gasket with engine liner accomodation

A gasket system is described and depicting having a gasket located between and sealing a cylinder head and a cylinder block. The gasket has a first metal layer and a second metal layer adjacent said first metal layer. The second metal layer has a bead region and a stopper region. At least a portion of the bead region has a predetermined tensile strength and a predetermined range of yield strength.

Cylinder head gasket

Sensor apparatus for a multiple layer steel (MLS) cylinder head gasket measures combustion pressures for detecting engine conditions. A membrane is positioned at one end of an elongated metal tube, and the membrane end of the tube engages a cylinder bore boundary. A fiber optical sensor apparatus is fixed within the tube, and communicates with cyclic combustion events via the membrane. In one disclosed embodiment, optical wires from sensor apparatus situated at each engine bore are bundled into a common groove machined into an extended spacer layer radially outwardly of the conventional boundary of the gasket. The tube protects the sensor apparatus from damage of sealing stress on the gasket, and particularly at the bore perimeter. Each tube lies in a separate groove in the spacer layer that terminates at the bore boundary. A converter changes optical signals received from the apparatus into electrical signals for transmittal to a controller.

Pressure sensor apparatus for measuring pressures including knock conditions in engine cylinders

A gasket having a layer including at least one combustion opening and a wave area located on the layer is disclosed. The wave area includes a first wave and a second wave. The first wave is proximate the combustion opening. A flat portion near the second wave includes a first end and a second end. A full bead is located next to the second end of the flat portion whereby a lower surface of the flat portion is above the lower projecting surfaces of the wave area.

Optimized wave bead with full bead design

A seal of an annular shape comprising a top bead and a side bead that are tilted inwardly at predetermined angles. The top bead and side bead are integrally formed such that a force exerted on the side bead allows the side bead to cooperate with the top bead to properly seal an intake pipe within a cylinder head. This abstract submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Sealing ring for an intake manifold

A multi-layer steel (MLS) cylinder head gasket containing fully integrated pressure sensors includes first and second metal layers with inner facing surfaces, and a spacer layer interposed between the facing surfaces. Outer (non-facing) surfaces of the first and second metal layers each include an elastomeric seal coating; the inner surfaces of the layers each include a friction reducing coating. Combustion apertures extend fully between the outer surfaces of the gasket, and are adapted to circumscribe cylinder bores of an engine. The spacer layer includes protective slots positioned adjacent each of the combustion apertures. Each slot wall contains a pressure sensor in form of a strain gauge to measure deflection of the wall resulting from pressure changes within engine combustion chambers. The measured deflections are correlated to actual pressures within the chambers. In the protective slots, the strain gauges are not exposed to combustion gases that could otherwise foul the sensors.

Multi-layer steel cylinder head gasket with integrated pressure sensor

An improved heat shield provides for reduced noise transmission of vehicular engine components is disclosed. The heat shield has three layers; a first sheet layer, a center insulation layer, and a second sheet layer. The insulation layer is positioned between the first and second sheet layers. The first sheet layer is defined by a variable shaped periphery that is folded over the periphery of the second sheet layer to form a hem having a variable length around the heat shield. The variable length serves to reduce uneven strain in the hem area experienced during crush forming the heat shield into the final shape. Further, the variable length of the hem also serves to alter the resonate frequency of the heat shield in specific areas to reduce vibration and improve acoustical properties.

Heat shield having a fold-over edge crimp with variable width and method of making same

An improved fluid flow sensor for measuring changes in temperatures of fluids flowing through apertures of a multiple-layered gasket is embedded between layers of the gasket. A thermal resistor type of sensor based upon hotwire anemometer technology in a preferred embodiment is responsive to changes in fluid temperature and flow velocity. A primary resistance with external current leads and separate auxiliary leads for voltage sensing are employed, wherein changes in resistance are virtually linearly proportional to changes in temperature. A four-point probe measurement method provides a most accurate reading of the temperature data to the extent that resistance associated with lead and contact resistances are minimized. The thermal resistor sensor is constructed of relatively thin layers of dielectric and electrically conducting materials having a low thermal mass, wherein the dielectric layers serve as support and electrical insulation to protect the sensor from environmental deterioration.

Gasket flow sensing apparatus and method

Methods and materials for sealing and insulating a fuel cell plate are disclosed. The disclosed process includes applying a coating precursor on at least one surface of the fuel cell plate, and curing the coating precursor by exposure to radiation. Disclosed coating precursors include those containing an acrylated oligomer and a photoinitiator, which can polymerize in response to ultraviolet or electron beam radiation. Other disclosed coating precursors are those that can polymerize in response to exposure to infrared radiation or heating, and include epoxy nitrile resins and organopolysiloxane resins. The disclosed processes and coating precursors provide certain advantages over conventional methods and designs for insulating and sealing fuel cell plates since the disclosed coating precursors can be quickly and precisely applied to fuel cell plates by, for example, screening printing.

Insulator and seal for fuel cell assemblies

An improved heat shield offers thermal insulation and reduced noise transmission for vehicular engine components, including exhaust manifolds. The structure has three layers: an outer structural metal layer, a center insulation layer to isolate heat and dampen noise, and an inner metal layer directly adjacent the shielded component for reflecting heat back to the shielded component. As disclosed, the shield has at least one edge portion defined by outwardly flared undulations or waves. The waved edge minimizes impact of plastic deformation of the metal edges during manufacture of the shield, which tends to produce wrinkling at the edges, and creates undesirable stiffness. Finally, the edge boundary of the outer metal heat shield layer is folded over the edges of the insulation and inner metal layers to avoid any sharp edges, thus preventing injury to installers and reinforcing the heat shield structure to enhance useful life under vibration and heat conditions.

Insulated heat shield with waved edge

The present invention relates to an improved primer coating for a multilayer gasket. The coating includes an elastomer, an epoxy resin and a particulate lubricant. The coating may also employ other components such as cure accelerators and reactive diluents. Also disclosed is a method of making the primer coating.

Anti-fret primer for multilayer gaskets

Methods and materials for sealing and insulating a fuel cell plate are disclosed. The disclosed process includes applying a coating precursor on at least one surface of the fuel cell plate, and curing the coating precursor by exposure to radiation. Disclosed coating precursors include those containing an acrylated oligomer and a photoinitiator, which can polymerize in response to ultraviolet or electron beam radiation. Other disclosed coating precursors are those that can polymerize in response to exposure to infrared radiation or to heating, and include epoxy nitrile resins and organopolysiloxane resins. The disclosed processes and coating precursors provide certain advantages over conventional methods and designs for insulating and sealing fuel cell plates since the disclosed coating precursors can be quickly and precisely applied to fuel cell plates by, for example, screening printing.

Epoxy nitrile insulator and seal for fuel cell assemblies

A spring back fire ring is provided in a gasket assembly that is used for sealing combustion openings. In addition to the spring back fire ring, the gasket assembly includes a main gasket body and upper and lower gasket layers. The spring back fire ring has first and second ends. The first end is biased upwardly around the periphery of the combustion openings. The second end is positioned proximate to the main gasket body. In one embodiment, the second end is integral with the main gasket body.

Growing community of inventors

Naperville, IL, United States of America

Frank Walter Popielas