DIAPHRAGM PUMP Russian patent published in 2006 - IPC F04B43/02 

FIELD: mechanical engineering; spacecraft; temperature control systems.

SUBSTANCE: invention is designed for use in temperature control systems, mainly, in spacecraft. Proposed diaphragm pump includes diaphragm head consisting of housing and cover with edge of diaphragm clamped between flanges, and movable rod on which central part of diaphragm is rigidly secured. Diaphragm head is provided with at least one delivery and one suction valves and also inlet and outlet unions. Inlet and outlet unions are movable relative to diaphragm head, being arranged in adapters installed between housing and cover in their division plane. Axle of rotation of adapter is made in form of bushing with supply channels. Outer diameter of bushing corresponds to coaxial cylindrical through holes of equal diameters made in cover and adapter for bushing and blind hole in housing. Delivery and suction valves are made removable being arranged in said bushings. They are provided with members locking them relative to cover. Repairability of pump is provided owing to direct access to drain and delivery valves from outside of pump, provision of lock members, making of adapters movable and displacement of outlet and inlet unions in space providing access to unions fitted in adapters.

EFFECT: facilitated servicing of pump at limited access to places of pump arrangement.

6 dwg