127results about How to "Adjustable capacity" patented technology

The invention provides a control valve device enabling the positioning precision of its abutment to be reduced without reducing the overall control precision of the valve. For this purpose, the valve device comprises a valve body defining a fluid flow duct in which there is disposed a shutter element turned by an actuator by means of a drive shaft. The shutter element is formed by a skirt presenting a notch forming an opening in the wall of the skirt. The notch is shaped in such a manner as to define a variable flow passage in the duct as a function of the angular position of the shutter element between an open position in which the notch co-operates in full with the duct, and a closed position in which said skirt closes the duct.

The invention comprises a suction housing connected to a negative pressure forming means to suck in fluids, a suction opening member mounted on the suction housing, a part of which is caused to contact the surface of an object, and which defines a pressure-reduced area together with the suction housing and the surface of an object, and a means for maintaining the distance between the suction housing and the surface of an object at a predetermined distance, wherein the suction opening member and the surface of an object where in contact with each other are caused to be detached from each other partially or entirely due to the increase in the fluid pressure difference between the inside and the outside of the pressure-reduced area, resulting in the communication between the inside and the outside of the pressure-reduced area, allowing the outside fluid to flow into the pressure-reduced area.

A method of manufacturing an electrode sheet for capacitors comprises the step of forming a sprayed layer of an A1-valve action metal alloy on at least one surface of an aluminum foil (2) by thermally spraying A1-valve action metal alloy powder on the surface of the aluminum foil. At the time of the spraying, a porosity content rate of the sprayed layer (3) is controlled to 20 vol% or less by melting at least a matrix A1 phase of the alloy. The electrode sheet for capacitors manufactured by the method can decrease the porosity content rate of the sprayed layer, which in turn can secure less leakage current and larger capacitance.

The invention discloses a hand-pushed transmission mechanical vehicle, and relates to the field of industrial machinery. The hand-pushed transmission mechanical vehicle comprises an object carrier. The object carrier comprises a bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate. Rollers are connected with the bottom plate, a push rod is arranged on the right side plate, the area of the bottom plate is 1-1.2 square meters, the left side plate and the right side plate are both hinged to the bottom plate, sliding rails are arranged on the front side plate and the rear side plate respectively, the left side plate and the right side plate are both connected with the sliding rails through balls respectively, and gravity alarms are arranged in the rollers. The push rod is connected with the right side plate in a clamping mode, the object carrier is detachable, the sliding rails can change capacity of the object carrier, and the push rod also can be detached from the right side plate. When the hand-pushed transmission mechanical vehicle is not used, the whole hand-pushed transmission mechanical vehicle can be detached and stacked to be stored, only plane space is occupied, indoor space is greatly saved, the gravity alarms can guarantee that the vehicle can not be overloaded, the hand-pushed transmission mechanical vehicle is prevented from being damaged, and the hand-pushed transmission mechanical vehicle is reasonable in structure, practical, convenient to use, and suitable for being used and popularized.