Colorado State University Research Foundation

Transocean Innovation Labs Ltd

Onboard Dynamics LLC

Oregon State University

Jp Scope, Inc.

Solix Algredients, Inc.

Kristina Weyer-Geigel

Guy Robert Babbitt

Nicholas Paul Echter

Christopher Wayne Turner

Bryan Willson

James Edward Kersey

Charles Price

Michael Ryan Buehner

Peter Michael Young

Peter Letvin

Stephen John Charlton

Caleb A Alvarado

Jason Charles Quinn

William Anderson

Anna Ettinger

Christopher Hagen

Daniel Scott Pedersen

Jay McFarlane

Amy Boczon

Nicholas Rancis

James Murphy

David Jacob Rausen

David Evans

Richard Charles Schoonover

David Eli Sherman

Clayton Jacobs

Nick Echter

Drew Cohen

Nicholas Echter

Guy Robert Babbit

This disclosure includes manifolds, subsea valve modules, and related methods. Some manifolds and/or subsea valve modules include one or more inlets, each configured to receive hydraulic fluid from a fluid source, one or more outlets, each in selective fluid communication with at least one of the inlets, and one or more subsea valve assemblies, each configured to selectively control hydraulic fluid communication from at least one of the inlets to at least one of the outlets, where at least one of the outlets is configured to be in fluid communication with an actuation port of the hydraulically actuated device.

Manifolds for providing hydraulic fluid to a subsea blowout preventer and related methods

Most multistage compressors specify a maximum inlet pressure that may be supplied to the compressor to stay within designed limits. If the supply gas to be compressed is at a higher pressure than the specified maximum inlet pressure, then its pressure must be reduced before connecting it to the compressor. This pressure reduction is inefficient. The present invention avoids reducing the inlet pressure by routing the supply gas directly to the appropriate compression stage depending on its inlet pressure such that the compressor loads are still within the specified limits of the equipment.

Flexible supply gas routing for gas compressors

When a natural gas compressor completes its compression cycle, residual pressurized natural gas remains in the cylinders, valves, and conduits of the compressor. Gas leaks into the environment increasing greenhouse gas emissions and introducing safety concerns. The systems and methods herein provide ways for substantially reducing or eliminating leakage of natural gas to the atmosphere while the system sits idle between compression cycles.

Purging natural gas compressors

An apparatus includes a valve and an actuator. The valve has a portion movably disposed within a valve pocket defined by a cylinder head of an engine. The valve is configured to move relative to the cylinder head a distance between a closed position and an opened position. The portion of the valve defines a flow opening that is in fluid communication with a cylinder of an engine when the valve is in the opened position. The actuator is configured to selectively vary the distance between the closed position and the opened position.

Variable travel valve apparatus for an internal combustion engine

A scalable photobioreactor system for efficient production of photosynthetic microorganisms such as microalgae and cyanobacteria is described. In various embodiments, this system may include the use of extended surface area to reduce light intensity and increase photosynthetic efficiency, an external water basin to provide structure and thermal regulation at low cost, flexible plastic or composite panels that are joined together make triangular or other shapes in cross-section when partially submerged in water, use of positive gas buoyancy and pressure to maintain the structural integrity of the photobioreactor chambers and use of structure to optimize distribution of diffuse light. Other embodiments concern air tubes comprised of plastic film at the bottom of each photobioreactor chamber to provide sparging air bubbles to the chamber. The photobioreactor system design also comprises gas exchange, temperature control, air pumping, liquid pumping, filtration, media recycling and harvesting methods. For biofuels production, the photobioreactor system can comprise a separate growth photobioreactor and secondary stress reactor.

Diffuse light extended surface area water-supported photobioreactor

Photobioreactors according to embodiments of the present invention deliver nutrient gas intermittently to the photobioreactor media. In some embodiments, one or more gases are delivered according to a duty cycle or timing pattern. According to some embodiments, algae is grown in a photobioreactor using intermittent introduction of carbon dioxide. In other embodiments, carbon dioxide is supplied to algae grown in a photobioreactor in whole or in part from a head space above the media of the photobioreactor.

Systems and methods for delivery of gases to algal cultures

This application concerns systems and methods for compressing natural gas with an internal combustion engine. In a representative embodiment, a system for compressing a gas comprises a reciprocating internal combustion engine including at least one piston-cylinder assembly comprising a piston configured to travel in a cylinder and to compress gas in the cylinder in multiple compression stages. The system can further comprise a first pressure tank in fluid communication with the piston-cylinder assembly to receive compressed gas from the piston-cylinder assembly until the first pressure tank reaches a predetermined pressure, and a second pressure tank in fluid communication with the piston-cylinder assembly and the first pressure tank. The second pressure tank can be configured to receive compressed gas from the piston-cylinder assembly until the second pressure tank reaches a predetermined pressure. When the first and second pressure tanks have reached the predetermined pressures, the first pressure tank can be configured to supply gas to the piston-cylinder assembly, and the piston can be configured to compress the gas supplied by the first pressure tank such that the compressed gas flows into the second pressure tank.

Internal combustion engine for natural gas compressor operation

Growing community of inventors

Fort Collins, CO, United States of America

Kristina Weyer-Geigel