11 results about "Valve opening" patented technology

The invention discloses a diaphragm type spring braking chamber of a truck braking system, wherein a one-way valve is arranged in an inner hole of the contact position of a piston rod of an energy storage piston (13) and a diaphragm and comprises a one-way valve plug screw (8), a valve seat (11), a rubber valve (12) and a one-way valve opening (14) are arranged on the one-way valve plug screw (8), and the valve seat (11) is axially fixed through a hole baffle ring (9). By adopting the technical scheme, the traditional parking braking cavity respiration structure is improved, the cost is reduced, the property is improved, a dust collecting device of the product is additionally arranged, therefore, the reliability, the dustproof performance, the durable performance and the like of the product are improved, the service life is prolonged; and the product structure is simplified and the failure rate of a braking air chamber is lowered.

Disclosed is a slow-acting ON/OFF valve which includes a valve-opening pressure chamber that makes an actuating member (which actuates a valve body that comes into contact with and moves away from a valve seat to close and open a flow passage) move in a valve-opening direction against a spring biasing force in a valve-closing direction, and supplies air to the valve-opening pressure chamber, in minute increments, via a flow rate regulation valve. In this slow-acting ON/OFF valve, the dead time from the receipt of a valve-opening signal to the commencement of a valve-opening operation is short. A manifold is provided independently of the valve-opening pressure chamber. Between the valve-opening pressure chamber and the manifold, the following three valves are provided: a pressure regulation valve which allows air to flow into the valve-opening pressure chamber from the manifold until pressure in the valve-opening pressure chamber reaches a predetermined reserve pressure and which is closed upon the pressure in the valve-opening pressure chamber reaching the reserve pressure; a flow rate regulation valve which supplies air to the valve-opening pressure chamber from the manifold, in minute increments, after the pressure in the valve-opening pressure chamber reaches the reserve pressure; and an exhaust valve which rapidly discharges air in the valve-opening pressure chamber to the manifold upon pressure in the manifold dropping below the pressure in the valve-opening pressure chamber and is thereafter closed.

A quick discharge faucet valve includes a shaft, a seal assembly, a coupling member, and a rotary handle. The shaft is inserted through an opening of a pipe, and a valve opening is positioned near a discharge opening of the faucet. The seal assembly is fastened to the shaft to abut against a joint connecting the faucet to the pipe, which is releasably positioned at the joint via a spring member. The coupling member is disposed at an outer end of the shaft to couple the faucet with the rotary handle. A first interlocking member of the rotary handle interlocks with a second interlocking member of the coupling member. The rotary handle is rotated to unlock the interlocking members and pulled to release the seal assembly from the joint to allow the fluid to flow around the shaft and discharge at the discharge opening of the faucet.

An internal combustion engine cylinder valve actuation system permitting elimination of valve springs. Valve opening and closing is actuated by a valve actuation means such as pressurized liquid or gas, or else mechanical wires or linkage means. The energy created by combustion causes liquid or gas valve actuation means to oscillate or else circulate between corresponding cylinder valves causing synchronized valve opening and closing between those cylinders. Mechanical linkages similarly comprise physical connections between corresponding cylinder valves and effect synchronized valve opening and closing between those cylinders. The above system thereby eliminates valve float and valve spring failure where valve springs are not required and a typical internal combustion engine is easily retrofitted to accommodate this system.

A vacuum valve comprises a valve stem (11) with a longitudinal axis (20), which is provided with at least one closing member (9,10) for closing at least one valve opening (2,3) and which can be driven by a longitudinal drive ( 18) In the longitudinal direction (21) parallel to the longitudinal axis (20) of the valve stem (11) from the starting position, where the vacuum valve is opened, to an intermediate position and can be moved by the transverse drive (19) The intermediate position is moved to at least one end position in which the vacuum valve is closed. Attached to the valve stem (11) is a transfer element (23), which is displaceably guided in the longitudinal direction (21) by at least one guide element (24). At least one transverse drive element (26) of the transverse drive (19) acts on the guide (24), wherein the guide (24) can be moved in the transverse direction by the transverse drive (19) via the at least one transverse drive element (26). (22) upward movement and wherein the guide element (24) entrains the transmission element (23) during its movement in the transverse direction (22).