| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 251308000 | Head and stem connections | 15 |
| 20090001308 | Valve to shaft assembly - A valve to shaft assembly includes a butterfly-type valve, a pair of bushings receiving the valve and holding the valve in axial position within a housing, and a shaft engaging the valve and the bushings and rotating the bushings in the housing. The bushings include features to hold the valve in position in the bore prior to assembly of the valve and, furthermore, act as rotating bearing surfaces for the valve. The valve to shaft assembly process may be simplified, especially where multiple valves are assembled to a single common drive shaft, such as in a port face charge motion control valve. Furthermore, the valve to shaft assembly provides an axial degree of freedom between valve, drive shaft, and bore, which allows the valve to float on the axis of the drive shaft, to facilitate self centering of the valve in the valve housing. | 01-01-2009 |
| 20100270489 | BUTTERFLY VALVE ASSEMBLY INCLUDING A BEARING ASSEMBLY FOR SERRATED SPLINE CONSTRAINT - Butterfly valves assemblies are provided that include a flowbody, a butterfly plate, an actuator and an upper chimney and a lower chimney disposed within the flowbody. The flowbody has an inner surface defining a channel. The butterfly plate is disposed in the channel, is rotationally mounted to the flowbody, and has an outer periphery. The actuator has an actuator output shaft that is coupled to the valve shaft via a serrated spline coupling. The upper chimney and the lower chimney are configured to include bearing assemblies that constrain radial loads and thrust loads exerted upon the valve shaft and minimize misalignment of the serrated spline coupling. | 10-28-2010 |
| 20110260086 | VALVE SHAFT APPARATUS FOR USE WITH ROTARY VALVES - Valve shaft apparatus are described herein. An example valve shaft apparatus includes a shaft having a stationary seal and a dynamic seal spaced from the stationary seal. The stationary seal defines a first leakage detection area adjacent the stationary seal and the dynamic seal defines a second leakage detection area adjacent the dynamic seal. A seal leakage detector is integrally formed with the shaft to provide a visual indication of process fluid leakage within the first leakage detection area or within the second leakage detection area. The seal leakage detector has a passageway in fluid communication with the first leakage detection area and the second leakage detection area. The passageway has a cross-sectional profile that changes between the first and second leakage detection areas to prevent fluid from flowing from one of the leakage detection areas into a body of the fluid valve. | 10-27-2011 |
| 20120248361 | CONNECTING STRUCTURE FOR VALVE ELEMENT AND VALVE STEM - Valve stem holes ( | 10-04-2012 |
| 20120280161 | VALVE FLAP DEVICE - A valve flap device having at least one valve housing having a shaft comprising a bearing surface and a valve axis, the shaft being rotationally supported about the valve axis by means of the bearing surface in the valve housing. A bearing element having a sliding bearing surface, wherein the bearing surface of the shaft contacts the sliding bearing surface. A bearing housing provided on the valve housing, in which the bearing element is supported at least in the radial direction to the valve axis, wherein the bearing element has an outer surface contacting the bearing housing. The support of the shaft is intended to be sufficiently tightly sealed, even for gaseous media, while simultaneously ensuring precise and statically determinate support. To this end, the bearing element is designed as a separate component coupled to the bearing housing about the valve axis with respect to the circumferential direction, such that the relative position between the bearing element and the bearing housing does not change in the circumferential direction when the shaft is rotated. | 11-08-2012 |
| 20140131608 | VALVE SHAFT APPARATUS FOR USE WITH ROTARY VALVES - An example valve shaft apparatus for use with a rotary valve disclosed herein includes a shaft having a first portion to be positioned in an opening of a valve body and a second portion to be positioned in a cavity of a closure member. A first seal is coupled to the first portion of the shaft to prevent fluid leakage into the opening of the valve body, where the first seal defines a first leakage detection area adjacent the first seal. A second seal is coupled to the second portion to prevent fluid leakage into the cavity of the closure member, where the first seal is spaced from the second seal and the second seal is to define a second leakage detection area adjacent the second seal. A passageway is formed in the shaft and fluidly coupled to the first and second leakage detection areas to provide an indication of fluid leakage past the first seal in the opening or to detect fluid leakage past the second seal in the cavity. The passageway is in fluid communication with a shaft outlet formed in an end of the shaft, where the shaft outlet is positioned away from the first and second leakage detection areas. | 05-15-2014 |
| 20140191147 | Aeration butterfly valve - An aeration butterfly valve including a butterfly disc valve, located within one or more configured valve housings, furnishes a disc valve that rotates about its own axis separate from the axis of rotation of the pivot stems that hold the disc valve in position for manipulation between opening and closure, with respect to the housing in which the disc valve mounts for operation. A ring seal provided within the housing is formed when the housing parts are engaged together, in the assembly of the housing, forcing a portion of the ring seal interiorly, within the housing passage and flow path, and in alignment with the circumferential periphery of the disc valve, to provide for complete sealing closure when the disc valve is pivoted into closure, thereby eliminating the need for the pivot stem and the disc connection to be sealed in their assembly within the aeration butterfly valve. | 07-10-2014 |
| 20140339452 | Valve device - A valve device has a housing, and a flow channel running in the housing, in which a valve flap is fastened on a shaft arranged perpendicularly to the flow direction. The shaft is rotatably mounted in housing. The bearing formed as a loose bearing is surrounded by a spring retainer, the base of which lies on a bearing bush of the loose bearing and has a jacket surface with a radial wavy shape. | 11-20-2014 |
| 20140367600 | VALVE, IN PARTICULAR FOR A MOTOR VEHICLE ENGINE - The invention relates to re-circulated exhaust gas valve for a motor vehicle engine, including a flap ( | 12-18-2014 |
| 20150076384 | Butterfly Valve Assembly - A valve assembly has a valve body, a lower bushing, a valve seat, a lower stem, a disc, and an upper stem. The valve body defines a bi-directional flow path therethrough; wherein the valve body has an inner surface, two flange faces, and further defines an upper orifice and a hemispherical lower orifice along an axis perpendicular to the flow path. The lower bushing is housed in the lower orifice, and the lower bushing is configured to tilt within the lower orifice away from the axis. The lower bushing defines a bushing cavity. The valve seat has an outer surface configured to encapsulate the inner surface and the two flange faces of the valve body. The lower stem is housed in the bushing cavity, and the lower stem is configured for tilting away from and towards the axis perpendicular to the flow path. The disc has a seating surface on at outer circumference, defines a stem receptacle to house the lower stem, and the stem receptacle extends less than a diameter of the disc. | 03-19-2015 |
| 20150083956 | FLAP HINGES SYSTEM FOR A FLAP SHAFT IN A MOTOR VEHICLE - A flap bearing system for a flap shaft in a motor vehicle includes a first radial bearing within which is arranged a flap shaft comprising a flap shaft end. A ratable flap body is arranged on the flap shaft. A flow cross-section of a channel housing is controllable by rotating the flap shaft with the flap body. A first bearing housing surrounds the first radial bearing. A bearing housing cover comprises an opening through which the flap shaft end protrudes. The bearing housing cover closes the first bearing housing. A sleeve radially surrounds a section of the first bearing housing. A circumferential groove is formed at an outer circumference at the section of the first bearing housing surrounded by the sleeve. The flap shaft end protruding from the first bearing housing is arranged geodetically so as to be at a same height or above an opposite flap shaft end. | 03-26-2015 |
| 20150323009 | A METHOD FOR MANUFACTURING A BALL BEARING, NOTABLY FOR A BUTTERFLY VALVE IN AN AERONAUTICAL ENVIRONMENT - The manufacturing method notably includes a step ( | 11-12-2015 |
| 20150345644 | BUTTERFLY VALVE - The present invention is a butterfly valve that has been modified such that it reduces internal losses in the closed position. The modifications according to the invention reduce losses occurring mainly through the shaft of the flap of the butterfly valve. The invention is of special interest in the use of butterfly valves in internal combustion engines for managing exhaust gases for their introduction into the intake by means of an EGR (Exhaust Gas Recirculation) system. | 12-03-2015 |
| 20160040786 | Aeration butterfly valve - An aeration butterfly valve including a butterfly disc valve, located within one or more configured valve housings, furnishes a disc valve that rotates about its own axis separate from the axis of rotation of the pivot stems that hold the disc valve in position for manipulation between opening and closure, with respect to the housing in which the disc valve mounts for operation. A ring seal provided within the housing is formed when the housing parts are engaged together, in the assembly of the housing, forcing a portion of the ring seal interiorly, within the housing passage and flow path, and in alignment with the circumferential periphery of the disc valve, to provide for complete sealing closure when the disc valve is pivoted into closure, thereby eliminating the need for the pivot stem and the disc connection to be sealed in their assembly within the aeration butterfly valve. | 02-11-2016 |
| 20160178067 | VALVE BODY AND SEAT WITH TONGUE AND GROOVE CONNECTION | 06-23-2016 |
