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The purge valve controls the purge vapor purge line, through which the manifold vacuum pulls air through the vapor storage device and purges it of fuel vapors. The electronic control unit (ECU) controls the opening and closing of this valve. [8] [dead link ]
The purge button (top-centre) is held away from the diaphragm by a spring. The valve is closed. The mechanism of diving regulators is the arrangement of components and function of gas pressure regulators used in the systems which supply breathing gases for underwater diving.
The low pressure and oral inflation valves are usually combined as a unit at the end of a corrugated or ribbed rubber inflation hose, with the low pressure inflation valve button on the side opposite the LP hose connector and the combined exhaust and oral inflation valve at the extreme end of the unit, in line with the corrugated hose.
The crankcase air outlet, where the PCV valve is located, is generally placed as far as possible from the crankcase breather. For example, the breather and outlet are frequently on opposite valve covers on a V engine, or on opposite ends of the valve cover on an inline engine. The PCV valve is often, but not always, placed at the valve cover ...
A diving regulator or underwater diving regulator is a pressure regulator that controls the pressure of breathing gas for underwater diving.The most commonly recognised application is to reduce pressurized breathing gas to ambient pressure and deliver it to the diver, but there are also other types of gas pressure regulator used for diving applications.
Classic twin-hose Cousteau-type aqualung. Aqua-Lung [1] was the first open-circuit, self-contained underwater breathing apparatus (or "scuba") to achieve worldwide popularity and commercial success. This class of equipment is now commonly referred to as a twin-hose diving regulator, [2] or demand valve.
The replacement gas supply hose is blown through to clear it of water, and fitted to the helmet. Communications cables are usually suitable for wet-connection, and this can be done if desired. The original umbilical may be disconnected from the harness and cleared from the diver if this will help.
Hot water supply hoses are more likely to be rubber lined, and polyurethane external sheathing is common for all umbilical hoses and cables. [2] [3] A typical 4-part diver umbilical will also have a 1 ⁄ 2 inch (13 mm) bore hot water supply hose for the diver's exposure suit. A 5-part diver umbilical will also include a video cable to allow ...
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