53results about How to "High pressure accuracy" patented technology

A tire filling apparatus preferably includes a support and seal arrangement on which a wheel-tire combination is supported in a horizontally lying orientation, a tire filling plate, and a plurality of differently-sized tire filling rings. Based on the diameter of the wheel-tire combination to be filled with air, a properly sized one of the filling rings is selected and positioned coaxially along the wheel axis between the tire and the filling plate. The filling plate moves toward the tire, sealingly contacts the filling ring, and presses the filling ring against the upwardly facing tire sidewall, until an open air filling gap is formed between the tire sidewall bead and the wheel rim. Pressurized air is introduced through the filling plate, the filling ring, and the open air filling gap into the tire interior, until the gap is closed by the increasing air pressure in the tire.

A pressure sensor includes: a housing; an attachment portion coupled to the housing and having a pressure input orifice; a diaphragm sealing the pressure input orifice of the attachment portion and having a first surface that is a pressure receiving surface; and a pressure sensitive unit having a detecting axis in a direction in which a force is detected. In the sensor, an end of the pressure sensitive unit is connected to a central area of a second surface of the diaphragm, another end of the pressure sensitive unit is connected to the housing, and the detecting axis is approximately orthogonal to the pressure receiving surface.

A pressure sensor, which is to be used in an environment involving vibrations, includes a case and a sensor chip. The case has an inner surface that is to be disposed perpendicular to a direction of the vibrations. The sensor chip is to sense a pressure in the environment and generate a sensing signal representative of the sensed pressure. The sensor chip has a pressure-receiving surface and is secured in the case with the pressure-receiving surface perpendicular to the inner surface of the case. With such an arrangement, since the pressure-receiving surface of the sensor chip is accordingly to be parallel to the direction of the vibrations, the influence of the vibrations on the pressure-receiving surface can be minimized. Consequently, high accuracy of the pressure sensor can be ensured.

A sheet accommodating device includes a first plate member on which sheets are mounted, a first biasing member that presses up the first plate member, a second plate member disposed on a side of the first plate member opposite to a side of the first plate member on which the sheets are mounted; and a second biasing member that presses up the second plate member, and has a configuration in which, according to a size of the sheets, the first biasing member presses up the first plate member or both the first and second biasing members press up both the first and second plate members. An area of the first plate member is smaller than an area of the second plate member.

The invention relates to an electric and spring coupling pressure pin of an automatic hole manufacturing tail end actuator. The electric and spring coupling pressure pin is arranged on a main shaft bottom plate, a hole manufacturing main shaft is arranged on the main shaft bottom plate, the main shaft bottom plate is arranged on an inside cross slide table of the tail end actuator, and the hole manufacturing main shaft moves on the cross slide table for feeding. The electric and spring coupling pressure pin is characterized in that the pressure pin comprises a pressure pin body and a pressure pin servo system, wherein the pressure pin body is connected with a pressure fin base through a pressure pin connecting seat, the pressure pin connecting seat is arranged on a guide rail of the main shaft bottom plate through a first slide block, the pressure pin servo system comprises a servo motor and an upper computer for controlling the servo motor, the upper computer is arranged on a tail end actuator controller, the servo motor drives a ball screw, a screw rod connecting plate is fixedly arranged on the screw rod, springs are symmetrically arranged at two sides of the screw rod, are connected with the bottom of the screw rod connecting plate and are connected with the pressure pin body, the screw rod connecting plate is arranged on the guide rail through a second slide block, the second slide block and the first slide block share one guide rail, and the second slide block is positioned above the first slide block.