Chamber pressure

About: Chamber pressure is a research topic. Over the lifetime, 2988 publications have been published within this topic receiving 30725 citations.

Seal arrangement for engine-driven supercharger

Abstract: A seal arrangement for an engine-driven supercharger to prevent burning and abnormal wear of an rubber-made oil seal fitted on a shaft of a rotor of the supercharger. The supercharger includes a housing, a rotor chamber is formed in the housing and the rotor is rotatably placed in the rotor chamber. A shaft chamber is formed next to the rotor chamber. The rotor shaft projects from the rotor chamber into the shaft chamber in a longitudinal direction of the rotor. A bearing is provided inside the shaft chamber for supporting the rotor shaft at a free end of the rotor shaft. A lubrication oil is fed to the bearing. The supercharger sucks external air into the rotor chamber by making the rotor chamber pressure negative and rotates the rotor for compressing the air in the rotor chamber. The oil seal is fitted on the rotor shaft between the bearing and the rotor chamber for defining an oil chamber in the shaft chamber between the oil seal and the bearing. An air chamber is defined in the shaft chamber between the oil seal and the rotor chamber. An air passage extends from the air chamber to the outside so that positive or negative pressure of the air leaking to the air chamber from the rotor chamber is lowered or raised when the air enters the air chamber which communicates with the outside via the first air passage.

Maintaining disinfection of medical equipment

Abstract: A method is provided for maintaining the disinfection of medical equipment, in particular medical endoscopes (10), following processing. The method comprises placing the disinfected equipment (10) in a sealed chamber (12), and subsequently reducing the pressure within the sealed chamber (12) to cause evaporation of residual moisture. Gas scavenger sachets (21) are also provided within the sealed chamber (12) to remove atmospheric oxygen, thus causing a further reduction in the chamber pressure. The method may optionally include a further step of charging the sealed chamber (12) with a disinfectant gas or vapor. The processed medical equipment (10) is then maintained at the desired level of disinfection within the controlled biostatic environment in the sealed chamber (12).

Optimizing poly(chloro-p xylylene) or Parylene C synthesis

Abstract: Current interest for implantable insulating biomaterials has resurrected a class of polymers synthesized from p-xylylene and its derivative dimers. Important kinetic aspects for the synthesis of the polymer are derived from measurements of chamber pressure and total weight of film deposition. Reduction of peak chamber pressure during polymer deposition was found to improve film quality, uniformity of deposit, adhesion, and transparency. A low-cost reactor design is proposed which simplifies the deposition characterization steps needed for producing high quality films.

Novel Approach for Computational Modeling of a Non-Premixed Rotating Detonation Engine

Abstract: Pressure gain combustion (PGC) has gained significant attention in airbreathing gas turbine applications due to its increased thermodynamic efficiency over a constant-pressure Brayton cycle. Rotati...