Topic
Chamber pressure
About: Chamber pressure is a research topic. Over the lifetime, 2988 publications have been published within this topic receiving 30725 citations.
Papers published on a yearly basis
Papers
More filters
Patent•
05 Feb 1988TL;DR: In this article, a method and apparatus for making gas flushed packages in a vacuum chamber machine which includes a bag mouth clamp spaced apart form seal bars disposed to transversely seal the bag neck is described.
Abstract: A method and apparatus for making gas flushed packages in a vacuum chamber machine which includes a bag mouth clamp spaced apart form seal bars disposed to transversely seal the bag neck. A vertically moveable piercing blade and nozzle penetrate the upper wall of the bag neck as the chamber pressure is lowered and the bag "balloons" thereby causing the upper and lower neck walls to separate. Once the bag is pierced and the residual air escapes, a predetermined amount of gas is injected and then the bag is sealed. If desired, sufficient gas can be injected to make a pillow pack.
46 citations
Patent•
29 Apr 1991TL;DR: In this article, a refrigerating system including a condenser, an evaporator and a wobble plate type compressor with variable displacement mechanism is described, where a bellows is disposed in a first passage and controls the communication between the crank chamber and the suction chamber response to crank chamber pressure.
Abstract: A refrigerating system including a refrigerant circuit having a condenser, evaporator and wobble plate type compressor with a variable displacement mechanism. Two passages communicate between the crank chamber and the suction chamber in the cylinder block. A bellows is disposed in a first passage and controls the communication between the crank chamber and the suction chamber response to crank chamber pressure. A control valve is disposed in the second passage and controls communication between the crank chamber and the suction chamber in the second passage in response to a signal generated outside of the compressor. A control circuit controls the generation of the signal in response to thermodynamic characteristics related to the evaporator. The signal activates or deactivates the second control valve when the characteristic indicates a value beyond a predetermined range of values. This configuration enables the compressor to obtain better cool down characteristics in the passenger compartment of an automobile.
46 citations
TL;DR: In this paper, the authors investigated laser-induced ignition for compressed natural gas-air mixtures in a constant volume combustion chamber, which simulated the engine combustion chamber conditions except turbulence of air-fuel mixture.
45 citations
Patent•
21 Apr 2000TL;DR: In this article, a single chamber method for depositing a stack including titanium and titanium nitride on a wafer surface is described. But the method is not suitable for high temperature wafer surfaces.
Abstract: A single chamber method for depositing a stack including titanium and titanium nitride on a wafer surface. Titanium is deposited by plasma enhanced chemical vapor deposition and then plasma nitrided. Titanium nitride is subsequently deposited by a thermal chemical vapor deposition process. Advantageously, the temperatures of the substrate and showerhead as well as the internal chamber pressure are maintained at substantially constant values throughout deposition of the stack.
45 citations
TL;DR: In this paper, flat washer specimens of various r.f. sputtered MoS2 coatings were subjected to sliding loads on a standard thrust washer tester to determine the relationship between coating parameters and wear life.
45 citations