DEVICE FOR BATCHING FLUID Russian patent published in 2007 - IPC F04B13/00 

FIELD: mechanical engineering.

SUBSTANCE: device comprises housing, plunger pump whose flowing part is connected with the tank for fluid through sucking valve and with pressure pipeline through pressure valve. The reciprocating drive cooperates with the plunger of the pump. The system of discharging leakage through the space between the pump housing and plunger has differential chamber connected to the housing of the pump whose rod is made in block with the plunger. The space of the diaphragm chamber that abuts against the pump housing is in communication with the tank for collecting leakage. The pipeline that connects the spaces of the diaphragm chamber with the tank for collecting leakage receives the pressure valve. The housing of the diaphragm chamber is provided with opening that is made in its bottom section and connects the space of the diaphragm chamber with the tank for collecting leakage. The plunger is provided with a ring step that is provided with the diaphragm block composed of two washers and diaphragm made of a flexible waterproof material and secured to the plunger by means of a nut. The end section of the plunger is provided with the adapter between the plunger and pump drive.

EFFECT: expanded functional capabilities.