Patent application number | Description | Published |
20110099623 | SYSTEM AND METHOD FOR PROVIDING UNIFIED TRANSPORT AND SECURITY PROTOCOLS - The system and method described herein may provide unified transport and security protocols. In particular, the unified transport and security protocols may include a Secure Frame Layer transport and security protocol that includes stages for initially configuring a requester device and a responder device, identifying the requester device and the responder device to one another, and authenticating message frames communicated between the requester device and the responder device. Additionally, the unified transport and security protocols may further include a Secure Persistent User Datagram Protocol that includes modes for processing message frames received at the requester device and the responder device, recovering the requester device in response to packet loss, retransmitting lost packets sent between the requester device and the responder device, and updating location information for the requester device to restore a communications session between the requester device and the responder device. | 04-28-2011 |
20120063338 | Wireless Communication Enabled Meter and Network - A meter enabled for wireless communication and a wireless communication network are disclosed. A meter enabled for wireless communication comprises a metering device, a wireless communication system and an interface between the two. Meter data can be read, and the meter can be controlled via communication with a wireless network. A self-configuring wireless network is disclosed that includes a number of vnodes, and one or more VGATES. Vnodes are operative to form ad hoc piconet connections. The one or more VGATES comprise computer network gateways that are enabled for wireless communication. The VGATES enable the wireless array of vnodes to communicate with a private or public computer network to transmit data or receive commands. The network may also communicate with a VNOC system that enables the wireless array of vnodes to communicate (either directly or through a VGATE) with a central control facility. | 03-15-2012 |
20130219485 | SYSTEM AND METHOD FOR PROVIDING UNIFIED TRANSPORT AND SECURITY PROTOCOLS - The system and method described herein may provide unified transport and security protocols. In particular, the unified transport and security protocols may include a Secure Frame Layer transport and security protocol that includes stages for initially configuring a requester device and a responder device, identifying the requester device and the responder device to one another, and authenticating message frames communicated between the requester device and the responder device. Additionally, the unified transport and security protocols may further include a Secure Persistent User Datagram Protocol that includes modes for processing message frames received at the requester device and the responder device, recovering the requester device in response to packet loss, retransmitting lost packets sent between the requester device and the responder device, and updating location information for the requester device to restore a communications session between the requester device and the responder device. | 08-22-2013 |
20140146702 | Wireless Communication Enabled Meter and Network - A meter enabled for wireless communication and a wireless communication network are disclosed. A meter enabled for wireless communication comprises a metering device, a wireless communication system and an interface between the two. Meter data can be read, and the meter can be controlled via communication with a wireless network using, e.g., the Bluetoothâ„¢ protocol. A self-configuring wireless network is also disclosed. The wireless network includes a number of vnodes, and one or more VGATES. The vnodes are devices that are enabled for wireless communication using, e.g., the Bluetoothâ„¢ protocol. Vnodes are operative to form ad hoc piconet connections. The one or more VGATES comprise computer network gateways that are enabled for wireless communication using, e.g., the Bluetoothâ„¢ protocol. Thus, the VGATES enable the wireless array of vnodes to communicate with a private or public computer network to transmit data or receive commands. The network may also communicate with a VNOC system. VNOC is a universal communications adapter that enables the wireless array of vnodes to communicate (either directly or through a VGATE) with a central control facility via various wireless or wired communication media. | 05-29-2014 |
Patent application number | Description | Published |
20130328554 | VRS INTERFACE WITH 1/T ARMING FUNCTION - A variable reluctance sensor system for processing a variable reluctance sensor signal including an arming comparator and an arming circuit. The arming comparator compares the variable reluctance sensor signal with an arming threshold which decreases proportional to 1/t from a predetermined maximum level and asserts an armed signal when the variable reluctance sensor signal reaches the arming threshold. The arming threshold may be decreased based on a scaling factor multiplied by 1/t to ensure detection of each pulse of the variable reluctance sensor signal. The arming threshold may decrease to a predetermined minimum level sufficiently low to intersect the variable reluctance sensor signal and sufficiently high relative to an expected noise level. The arming threshold is reset in response to a timing event, such as zero crossing of the variable reluctance sensor signal. | 12-12-2013 |
20140035561 | VARIABLE RELUCTANCE SENSOR INTERFACE WITH INTEGRATION BASED ARMING THRESHOLD - An interface for processing a variable reluctance sensor signal provided by a variable reluctance sensor including an integrator, an arming comparator and a detect circuit. The integrator includes an input for receiving the variable reluctance sensor signal and an output providing an integrated signal indicative of total flux change of the variable reluctance sensor. The arming comparator compares the integrated signal with a predetermined arming threshold and provides an armed signal indicative thereof. The detect circuit provides a reset signal after the armed signal is provided to reset the integrator. A corresponding method of processing the variable reluctance sensor signal is also described. | 02-06-2014 |
20150097556 | VARIABLE RELUCTANCE SENSOR INTERFACES AND METHODS OF THEIR OPERATION - The embodiments described herein include systems with a variable reluctance sensor (VRS) interface and methods of their operation that may reduce the probability of erroneous transitions in a resulting generated detect signal. As such, the VRS interface can improve the accuracy of position and/or motion determinations, and thus can improve the performance of a wide variety of devices that use variable reluctance sensors. In one embodiment the VRS interface uses a comparator with hysteresis to generate a trailing edge signal. In another embodiment the VRS interface uses bias voltages to reduce the probability of erroneous transitions in a trailing edge signal. In either case the VRS interface can prevent erroneous transitions in the detect signal and thus may improve the performance and accuracy of the system. | 04-09-2015 |
20150097557 | VARIABLE RELUCTANCE SENSOR INTERFACES WITH SIGNAL PRE-PROCESSING AND METHODS OF THEIR OPERATION - The embodiments described herein can provide a variable reluctance sensor (VRS) interface that may reduce the probability of erroneous transitions in a resulting generated detect signal. As such, the VRS interface can improve the accuracy of position and/or motion determinations, and thus can improve the performance of a wide variety of devices that use variable reluctance sensors. To facilitate this, the VRS interface includes a pre-processing circuit configured to modify a VRS signal to prevent the modified VRS signal from dropping below a threshold value and generating erroneous transitions in the detect signal pulse between leading and lagging edges of a tooth. In one embodiment the pre-processing circuit comprises a peak and hold circuit. In another embodiment the pre-processing circuit comprises a resistor-capacitor circuit. In either case the pre-processing circuit can prevent erroneous transitions in the detect signal and thus may improve the performance and accuracy of the system. | 04-09-2015 |
20150198466 | VARIABLE RELUCTANCE SENSOR INTERFACES WITH CLEARING AND METHODS OF THEIR OPERATION - The embodiments described herein include systems with a variable reluctance sensor (VRS) interface and methods of their operation. Embodiments of VRS interfaces include a clearing signal generator configured to generate a clearing signal corresponding with the timing of a noise event. The clearing signal may be configured to clear a post-processing circuit. | 07-16-2015 |
Patent application number | Description | Published |
20120261289 | PROTECTIVE CASE AND METHODS OF MAKING - Disclosed is a protective case for an electronic device. The protective case has two layers, an inner cushion insert that surrounds a portion of the electronic device and an outer elastomeric shell. The cushion insert includes raised impact portions that extend through the cover, and that are capable of absorbing shocks from impacts. | 10-18-2012 |
20130061377 | SLIDEABLE AND ABRASION RESISTANT FLEXIBLE IMPACT ABSORBING CUSHIONING PADS, CLOTHING INCORPORATING SUCH PADS, AND METHODS OF MAKING AND USING - The disclosure relates to conformable protection pads, with integral abrasion resistant and/or slideable surfaces, or shells that conform to the outer surface of the pads. | 03-14-2013 |
20130092562 | FLEXIBLE IMPACT PROTECTIVE CASES, METHODS OF MAKING AND METHODS OF USING - Disclosed herein are protective cases for sensitive devices, including devices with screen interfaces, which cases provide protection from front, back and edge impacts, including torsional impacts. | 04-18-2013 |
20130127309 | PROTECTIVE CASES AND METHODS OF MAKING - Disclosed herein are protective inserts for sensitive devices, including devices with screen interfaces, which cases provide protection from front, back and edge impacts. | 05-23-2013 |
20130244526 | PROTECTIVE IMPACT ABSORBING STRUCTURES WITH INTERNAL REINFORCEMENT AND MATERIALS THEREFOR - Disclosed herein are conformable protection pads with a reinforcing layer. | 09-19-2013 |
20140069825 | PROTECTIVE CASE AND METHODS OF MAKING - Disclosed is a protective case for an electronic device. The protective case has three layers: an elastomeric liner that surrounds a portion of the electronic device, a cover and a cushion insert disposed between the liner and cover. The cushion insert includes raised impact portions that extend through the cover, and that are capable of absorbing shocks from impacts. | 03-13-2014 |
20140144792 | PROTECTIVE CASES AND METHODS OF MAKING - Disclosed herein are protective inserts for sensitive devices, including devices with screen interfaces, which cases provide protection from front, back and edge impacts. | 05-29-2014 |
20150082523 | BREATHABLE IMPACT ABSORBING CUSHIONING AND CONSTRUCTIONS - Disclosed herein, in one embodiment, is a breathable cushioning pad. The cushioning pad includes an upper layer surface, a lower layer with a lower surface, and a cushioning material disposed between the upper layer and has the lo cushioning pad has a thickness. A channel can be disposed in the cushioning pad and defines a cushioning region The channel includes a thickness less than the thickness of the cushioning region. At least one vent extends through connection with the upper surface and the lower surface. | 03-26-2015 |
Patent application number | Description | Published |
20100175377 | COOLING AN ELECTRICALLY CONTROLLED TURBOCHARGER - An electrically controlled turbocharger has a motor mounted on a shaft in a motor housing between a turbine and compressor. Oil is sprayed onto the motor stator to cool the stator. Flingers on the shaft fling oil back onto the stator. | 07-15-2010 |
20100284824 | Cooling an Electrically Controlled Turbocharger - An electrically controlled turbocharger has a motor mounted on a shaft in a motor housing between a turbine and compressor. Oil is sprayed onto the motor stator to cool the stator. An oil gallery is disposed above the stator to receive lubricating oil and contains apertures that perform as jets to allow oil to be sprayed directly on the motor stator. A coolant jacket is formed in the turbocharger housing between the turbine and the motor to allow liquid coolant to circulate therein and dissipate heat from the turbine end prior to reaching the motor components. Other embodiments provide for a stator component to be submerged in flowing cooling oil. | 11-11-2010 |
20110057049 | Supercritical-State Fuel Injection System And Method - A fuel injector system for raising fuel to its supercritical state and injecting the supercritical-state fuel to the combustion chamber of an internal combustion engine is disclosed. A plurality of injector embodiments provides alternative ways to heat the pressurized fuel to its supercritical state. Injection of supercritical fuel into the combustion chamber is known to improve fuel entrainment and reducing ignition delay to thereby increase combustion rate, which leads to an increase in fuel efficiency. According to some embodiments, the system provides for preventing coking that may otherwise occur in an exhaust gas heat exchanger used for preheating the high pressure fuel. In other embodiments, engine cold start assistance is provided by storing pressurized, heated fuel in an insulated container. | 03-10-2011 |
20110215575 | Electrical Generator - An electrical generator utilizing two internal combustion engine having an expanded range of power output is disclosed. A primary internal combustion engine is coupled to the magnet rotor assembly. The primary engine is operated solely in a lower power range. A secondary engine, coupled to a coil assembly is locked in place in such lower power range to make the coil assembly stationary. In a higher power range, that overlaps the lower power range, the secondary engine is unlocked and operated to rotate in a counter-rotating direction with respect to the first engine. The secondary engine can be started by operating the generator (consisting of the magnet rotor assembly and the coil assembly) as a motor by appropriate application of current. | 09-08-2011 |
20120191322 | Controlling an Engine Having an Electronically-Controlled Turbocharger - A procedure for startup and shutdown of an internal combustion engine with an electronically-controlled turbocharger (ECT) is disclosed. The startup and shutdown procedures are determined to provide the desired lubrication to engine and ECT components and sufficient cooling of the engine and ECT. In one embodiment, the system includes an electric oil pump that can supply oil to the oil circuit in the engine and ECT independently of an engine-driven mechanical oil pump. In another embodiment, the oil circuit is provided with an oil accumulator to provide oil for cooling after engine rotation has stopped. | 07-26-2012 |
20130129523 | Bimetallic Compressor Wheel and a Method of Manufacture Thereof - The performance and durability of compressor wheels coupled to turbocharger shafts are at odds with each other in that a higher rotational speed can be accommodated by an aluminum compressor wheel. But, aluminum has a low yield strength which causes the compressor wheel to expand outwardly at high rotational speeds such that the slip fit on the shaft no longer prevents wobble at high rotational speeds. To at least partially address this issue, the compressor wheel has two portions: an inner portion made of steel or titanium that has a relatively higher yield strength and a blade portion made of a lightweight, castable material. The inner portion is manufactured with grabbing features on its periphery, placed in a die, and the blade portion is cast over the grabbing features to yield a compressor wheel of two materials that provides sufficient shaft stiffening without high rotational inertia. | 05-23-2013 |
20140056721 | Shield and Coolant Guide for an Electric Machine - Peak performance of an electric motor can be enhanced by effective cooling of windings of the stator to avoid overheating. A liquid coolant is effective at cooling the stator; but in high-speed motors, it is advisable to avoid allowing coolant on the rotor to avoid high frictional losses. A shield provided in the air gap between the rotor and the stator guides the coolant back to a sump without gaining access to the rotor. Furthermore, if the electric machine is proximate a high temperature component, the shield may further prevent radiative and conductive heat transfer to the electric machine. | 02-27-2014 |
20140056726 | Cooling Stator Windings of an Electric Machine - In an electric machine, there may be lubrication and cooling needs, such as lubricating bearings and cooling coils of the electric machine. When lubricant is used for both, it is desirable to prioritize the lubrication to the bearings. By providing check valves between a pressurized oil manifold and the cooling coils, lubricant is diverted to the coils only when pressure in the system is sufficient to satisfy both lubrication and cooling. In some embodiments, an oil gallery is provided on an outside surface of a back iron of the stator of the electric machine and orifices are provided in the back iron so that oil drips onto the coils of the electric motor. In some embodiments, the current commanded to the electric motor is based on whether or not lubricant (or other coolant) is being provided to the coils. | 02-27-2014 |
20140216391 | Oil Return to the Sump of a Flat Engine - Returning engine oil to the primary oil sump from outboard locations in a flat engine can be a challenge. In the present disclosure, the pressure fluctuations occurring at the underside of the piston, due to reciprocation of the piston, are used to pump the oil from outboard locations to the primary oil sump. To prevent backflow of oil during periods of negative pressure difference, a check valve is placed in the oil drain passage. The check valve allows flow from the outboard location to the primary oil sump and no flow from the primary oil sump to the outboard location by opening and closing as driven by pressure fluctuations due to piston reciprocation. Such a check valve also prevents backflow of the oil to one of the outboard locations when the engine is tilted. | 08-07-2014 |
20150114358 | Master and Slave Pullrods - Master and slave pullrods are disclosed in which a master pullrod is coupled to a journal of a crankshaft. The slave pullrod indirectly couples to the crankshaft by coupling to the master pullrod. Such a configuration allows two connecting rods to be coupled to the journal of the crankshaft inline with each other. | 04-30-2015 |
20150118044 | Bearings for a Turbomachine Having an Electric Motor - An electronically-controlled turbocharger (ECT) includes a rotor (of an electric motor) on the shaft of the turbomachine. There are a variety of embodiments for securing the rotor onto the shaft including, but not limited to: having a taper on both the shaft on the rotor and using a nut engaging with threads in the shaft to put the two tapers together; a press fit; splines and grooves also using a nut; and a shoulder on the shaft that the rotor abuts when a nut is engaged with threads on the shaft. To accommodate these retaining features, the diameter of the shaft is greater near the turbine end of the shaft. A first bearing installed on the shaft near the turbine end of the shaft has a larger inside diameter than a second bearing installed on the other side of the rotor. | 04-30-2015 |
20150207386 | Cooling Stator Coils of an Electric Motor - Performance of an electric motor can be improved if coolant is provided to the coils of the stator. An electric motor is disclosed that has a shaft onto which the rotor is secured. The motor has a stator that is mounted on bearings that are mounted on the shaft. The stator has a plurality of coils. A coolant guide is provided that fills voids between the groups of windings. The coolant guide has a plurality of fingers with the fingers arranged between adjacent pairs of coils. The coolant guide has internal passages to accept pressurized coolant and outlet holes to spray coolant onto the coils. In other embodiments, the fingers guide coolant to reach all coils under the force of gravity. | 07-23-2015 |
20150256051 | INSULATION IN AN ELECTRIC MACHINE - It is common in electric machines to use the housing as a heat sink to remove energy from the electric machine. In some applications, however, the housing receives energy from a hot element. For example, in an electronically controlled turbocharger, the very hot turbine housing radiates and conducts energy to the electric machine housing exacerbating the heating within the electric machine. To reduce the heat transfer into the electric machine, a gap is provided between the stator and the housing outside the stator. In one alternative, the gap is filled with an insulating material. In another embodiment, the gap is an air gap with the stator located within the housing by circumferential rings or axial rods in corresponding grooves. In yet another embodiment, coolant is provided to the gap at the top and drained away at the bottom under the action of gravity. | 09-10-2015 |
20160003140 | ELECTRIC ROTOR FIT ONTO A TURBOMACHINE SHAFT - By relieving the shaft of an electronically-controlled turbocharger (ECT) in a central region of where a rotor of an electric machine couples with the shaft eases assembly of the electric machine onto the shaft. On either side of the relieved section, the fit between the shaft and the rotor may be a slip fit or an interference fit. Alternatively, the rotor is relieved in a central section. In some embodiments, the shaft is welded to the rotor. In yet other embodiments, the outside of the shaft and the inside of the rotor are threaded with a nut or a pin to secure the shaft to the rotor or the rotor itself has threads to engage with threads on the shaft. Such arrangements ease assembly and allow adjustment of dynamic characteristics of the rotor system. | 01-07-2016 |