53 results about "Bleed screw" patented technology

A hose bend bleeder is combined with first and second hoses, with the hose bend bleeder being located at the bottom of a bend in a flow path established by the hoses. The hose bend bleeder has a bleed screw and a downwardly facing exit passageway.

A manifold for a submersible turbine pump having an air bleed mechanism for removing air from a discharge chamber of the manifold. The manifold includes the discharge chamber that receives fuel pumped from an underground storage tank (UST), the air bleed mechanism, an air return path coupled to the UST, and a bypass tube coupled to the air return path. When the air bleed mechanism is activated, the fuel discharge chamber is fluidly coupled to the bypass tube, thereby allowing air from the fuel discharge chamber to flow to the ullage of the UST. In one embodiment, the air bleed mechanism is an air bleed screw inserted into a threaded orifice in the manifold. The threaded orifice is coupled to both the bypass tube and the fuel discharge chamber. When the air bleed screw is rotated upward, the bypass tube is coupled to the fuel discharge chamber.

The invention discloses an exhaust method for brake systems of electric vehicles. The exhaust method includes treading brake pedals, gathering air in brake circuits at air bleed screw mounting holes,increasing the pressures of the brake circuits, switching on vacuum pumps at the moment and vacuumizing detection cavities; drawing air in the brake circuits into the detection cavities; driving pressure plungers in the detection cavities and gradually increasing the internal pressures of the detection cavities; terminating exhaust programs at the moment if the pressures of the detection cavitiesare higher than set values and extracting brake fluid in the detection cavities to a fluid storage cavity; repeatedly carrying out previous programs until the brake circuits are sufficiently exhaustedif the pressures of the detection cavities are not higher than the set values. The air which is about to be drawn into the detection cavities is mixed with the brake fluid. The fact that the brake fluid in the detection cavities accounts for a high proportion is illustrated if the pressures of the detection cavities are higher than the set values, and the fact that the brake circuits are sufficiently exhausted is further proved. The method has the advantages that the method can be implemented by the aid of a single person, and accordingly the efficiency can be improved; the exhaust programs can be accurately controlled, the brake circuits can be assuredly thoroughly exhausted, and excessive exhaust can be prevented.

The invention relates to an air bleeding device which can be used for the exhaust of a hydraulic pipe-line system. The air bleeding device includes an air-bleed screw (1), outer threads (3) are arranged on the air-bleed screw, an exhaust vent (2) is arranged inside the air-bleed screw, the lower end of the air-bleed screw is provided with a sink hole (7) which is communicated with the exhaust vent, the diameter of the sink hole is greater than that of the exhaust vent, the inner wall (15) and the hole bottom surface (16) of the sink hole are provided with a plurality of ventilation grooves (5), and the ventilation grooves are communicated with the exhaust vent from the end face of the lower end of the air-bleed screw via the inner wall and the hole bottom surface of the sink hole. The air bleeding device further includes a sealing member (8) arranged in the sink hole, and the sealing member is in interference fit with the sink hole. The air bleeding device is simple in structure, the ventilation grooves are good in structure stability and are not easy to deform under normal pressure, and the service life of the air bleeding device is prolonged.

The invention discloses a clutch system exhaust assisting device. The clutch system exhaust assisting device comprises a wheel cylinder bleed screw on a clutch wheel cylinder and further comprises anexhaust pipe. The exhaust pipe is connected with the wheel cylinder bleed screw through an exhaust pipe oil inlet connector. The exhaust pipe is connected with a braking oil pot through an exhaust pipe oil discharging connector. The position, close to the exhaust pipe oil discharging connector, of the exhaust pipe is provided with an exhaust observation port. The wheel cylinder bleed screw, the exhaust pipe oil inlet connector, the exhaust pipe and the exhaust pipe oil discharging connector are in communication through an oil path. An oil path control structure is further included and comprises an oil inlet control structure and an oil discharging control structure, the oil inlet control structure is arranged on the exhaust pipe oil inlet connector, and the oil discharging control structure is arranged on the exhaust pipe oil discharging connector. The invention further provides an exhaust method adopting the above device. By application of the provided device and method, one person can conduct control, the human resource is saved, and time is saved; and the situation that oil liquid is sprayed to the naked skin of the human body can be avoided, and production safety is improved.