Dynamic Fluid Valve for Substrate Exchange

The patent replaces the mechanical air lock system with a fluid dynamic system using injected exchange fluid to create a virtual barrier. The injection system uses pressure differentials and fluid flow patterns to prevent atmosphere mixing without mechanical moving parts, enabling continuous substrate exchange while maintaining atmosphere separation.

The patent employs pneumatic principles by injecting exchange fluid through nozzles to create a fluid barrier that separates the two atmospheres. The system uses pressure control and fluid flow management to maintain the barrier, allowing substrates to pass through the fluid stream without direct mechanical contact or air lock mechanisms.

The patent replaces mechanical pressure equalization mechanisms with a fluid dynamic approach. The injected exchange fluid creates a pressure-balanced flow field that protects substrates from pressure differentials during transit, eliminating the need for slow mechanical air lock cycling and enabling faster substrate exchange.

The system performs preliminary pressure balancing by pre-injecting exchange fluid to establish a stable flow pattern before substrates enter the passage. This creates a ready-made protective environment that immediately stabilizes substrates upon entry, eliminating delays associated with mechanical pressure equalization.

The patent introduces exchange fluid as an intermediary substance that flows through the passage between the exterior and process space. This fluid mediator creates a dynamic barrier that prevents direct mixing of the two atmospheres while allowing substrates to pass through, achieving both open communication and atmosphere protection simultaneously.

The system uses pneumatic fluid injection to create a directed flow of exchange fluid through the passage. The controlled fluid stream acts as a movable seal that maintains atmosphere separation while permitting substrate transport, enabling efficient open communication without contamination.