Patent ID: 8347910
Filing Date: 2013-01-08
Classification: F16K,H01M,Y02E,Y10T

Abstract:
1. A water refilling plug for automatically filling battery cells comprising: a cylindrical plug housing; a connector fitting coupled to the cylindrical plug housing for water delivery into the cylindrical plug housing; and a valve having an annular valve body and a conical valve seat, the valve being arranged between an inflow channel and an outflow channel leading into a battery cell; wherein swirl-generating deflection channels are recessed into a cylinder wall of the valve over a circumference of the wall between the inflow channel and the conical valve seat, wherein the cylinder wall is located between a valve cylinder centeredly attached in the cylindrical plug housing, and an inner cylinder on which the conical valve seat is provided, the swirl-generating deflection channels proceeding obliquely with respect to a radial direction of the cylinder wall and opening substantially tangentially into an inner space of the valve cylinder above the valve seat, and wherein the swirl-generating deflection channels proceed obliquely upward from the inflow channel.