Exponential Technologies, Inc.

Other

Palliser Industries, Inc.

Alejandro Juan

Curtis Patterson

Kristjan Tod Gottfried

Soheil Farshchian

Erik Farrell

Michael Sereda-Mohr

Len P Hughes

Sven W Larsen

Todd Beasley

Stephen Scott

Kyle Fiolka

Dale Tardiff

Kristjan Gottfried

A positive displacement device that converts energy, namely positive displacement compressors that rotate in a single rotational direction to displace working fluid contained in operating chambers. The device described herein is particularity advantageous for the ability to achieve high compression ratios in combination with high discharge pressure and high volumetric throughput in a single stage.

Rotary fluid flow device

A coupling for connecting two tubular members. The coupling being comprised of two hubs with annular flanges having axially outwardly facing frustoconical surfaces. The hubs have axially inwardly facing tapered faces, the radially innermost point of said tapered faces being perpendicular to the axis of the tubular members. The tapered faces of the hubs have registering seal rings grooves formed therein, a seal ring being positioned in the seal ring grooves. The hubs are held together by a pair of outer clamps having inner surfaces shaped for engaging the axially outwardly facing frustoconical surfaces of the hubs. Compression of the clamps toward one another forces the inwardly facing tapered surfaces toward one another and brings them into engagement. The engagement of the tapered surfaces forms a primary metal-to-metal seal. The seal ring within the seal ring groove forms a secondary metal-to-metal seal.

Pipe coupling

A sensor assembly for detecting material loss of a vessel transporting flowing media, the sensor assembly having at least one sensor positioned between a pair of annular plates such that the radially innermost surface of the sensor is in open communication with the flowing media. A series of parallel resistors spaced along the sensor and transmit a signal. As the material of the annular plates is worn away by corrosion and/or erosion, the outermost resistor becomes exposed to the flowing media and breaks the circuit as to that resistor, thus changing the signal.

Sensor

A positive displacement rotary motion device including in one example a pulse detonation device. Also; an indexing system for a rotor assembly where in one example the indexing system regulates the rotational location of drive rotors. In one example the rotors are configured to rotate about a shaft.

Positive displacement rotary motion device including a pulse detonation device

A control system and method for the seat suspension described herein utilizes a pneumatic cylinder which forms the shock absorber, an air compressor, solenoid valve and a microelectromechanical system (MEMS) based control. In operation, the pneumatic cylinder is filled with a compressible gas and sustained under pressure for the purpose of supporting the static weight of the occupant as well as providing comfort by reducing transmitted vibrations and high acceleration from external disturbances. A control process utilizes vibration data from the MEMS to adjust the gas cylinder pressure accordingly to reduce and damp the undulations of the supported mass.

Anti-fatigue shock mitigation system

A pressure gain combustor comprises a detonation chamber, a pre-combustion chamber, an oxidant swirl generator, an expansion-deflection (E-D) nozzle, and an ignition source. The detonation chamber has an upstream intake end and a downstream discharge end, and is configured to allow a supersonic combustion event to propagate therethrough. The pre-combustion chamber has a downstream end in fluid communication with the detonation chamber intake end, an upstream end in communication with a fuel delivery pathway, and a circumferential perimeter between the upstream and downstream ends with an annular opening in communication with an annular oxidant delivery pathway. The oxidant swirl generator is located in the oxidant delivery pathway and comprises vanes configured to cause oxidant flowing past the vanes to flow tangentially into the pre-combustion chamber thereby creating a high swirl velocity zone around the annular opening and a low swirl velocity zone in a central portion of the pre-combustion chamber. The E-D nozzle is positioned in between the pre-combustion chamber and detonation chamber and provides a diffusive fluid pathway therebetween. The ignition source is in communication with the low swirl velocity zone of the pre-combustion chamber. This configuration is expected to provide a combustor with a relatively low total run-up DDT distance and time, thereby enabling high operating frequencies and corresponding high combustor performance.

Pressure-gain combustion apparatus and method

Disclosed herein are several embodiments for shroud arrangements to be used in rotary engines using a plurality of rotors within the shroud arrangement. At least one of the rotors is not fixed to the shroud.

Shroud for rotary engine

This disclosure concerns an advanced nutating positive displacement device having a high power to mass ratio and low production cost. This device in one example forms an exemplary pump as will be discussed in detail. The examples disclosed herein are of the rotary positive displacement type, but in a class by themselves. The devices are formed by a nutating rotor having a face comprising lobes and valleys, and a fixed stator also having a face with lobes and valleys. The face of the rotor opposes and cooperates with the face of the stator. The opposing faces define chambers that change volume with rotation of the rotor.

Dual axis rotor

Disclosed herein is a use of pulsed combustion to convert chemical energy to usable heat. For example, in boilers, heat is generated by burning fuel at burners and transferring the heat to water or other fluids, including air, through heat exchangers. In one form, these heated fluids may then be utilized to assist in removing oil from oil sand reservoirs.

Heating apparatus

Disclosed herein is an indexing system for a rotor assembly where in one example the indexing system regulates the rotational location of drive rotors. In one example the rotors are configured to rotate about a shaft.

Indexed positive displacement rotary motion device

Disclosed herein is a valveless multitube pulse detonation engine including: a plurality of detonation tubes, wherein each detonation tube comprises an independent discharge outlet, and the plurality of detonation tubes interconnected at a common air/fuel mixture intake port. In the disclosed engine, an air and fuel mixture is detonated in the detonation tubes simultaneously, and the common air/fuel mixture intake port minimizes back-pressure caused by detonating the air/fuel mixture by directing multiple reverse shock waves into one another and effectively using the back-pressures as reacting surfaces for one another and effectively reducing the effect of back flowing shock waves moving towards upstream. The detonation tubes may be non-linear, and may have independent discharges. The independent discharges may be coupled to an adapter nozzle terminating in a combined exhaust outlet.

Multitube valveless pulse detonation engine

The present disclosure describes the use of involute curves for use in energy conversion devices, as well as timing or indexing gears. Several different embodiments are shown using rotors of several examples of lobe numbers and shapes.

Rotors formed using involute curves

Provided herein are multiple variations, applications, and variations for producing electrical power from a flowing fluid such as a gas or liquid under pressure, for example natural gas flowing through a pipeline, by means of one or more positive displacement devices that drive one or more electrical generators. The electrical generators may be immersed in the flow stream together with the positive displacement devices as disclosed, or alternately may be isolated from the flow stream, such as by magnetic coupling, in order to promote longevity and to decrease the risk of accidental discharge or explosion of the fluid in the flow stream. To further decrease such risks, the positive displacement devices may isolate the drive fluid from the environment without the use of dynamic seals.

Growing community of inventors

Calgary, Canada

Alejandro Juan