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In natural gas furnaces, water heaters, and room heating systems, a safety cut-off switch is normally included so that the gas supply to the pilot and heating system is shut off by an electrically operated valve if the pilot light goes out. This cut-off switch usually detects the pilot light in one of several ways: A flame rectification device. [2]
The pilot light is no longer used in new devices, but may still be encountered on old appliances still in service. [1] Pilot lights were withdrawn because their continual small flame represented a waste of fuel. [1] Pilot lights required their own FSD, typically a thermocouple which held the valve open. [2]
GE Appliances was originally a part of General Electric, a company which began marketing a full roster of heating and cooking products in 1907. [11] In January 2004, it became part of GE Consumer & Industrial when GE Consumer Products (founded in 1905) merged with GE Industrial Systems (founded in 1930) to form GE Consumer & Industrial.
The pressure at which the control pilot relieves is the functional set pressure of the PORV. When the pilot valve reaches set pressure it opens and releases the pressure from the dome. The piston is then free to open and the main valve exhausts the system fluid. The control pilot opens either to the main valve exhaust pipe or to atmosphere ...
The glass is most susceptible to breakage due to damage at its edge, where the tensile stress is the greatest, but can also shatter in the event of a hard impact in the middle of the glass pane or if the impact is concentrated (for example, the glass is struck with a hardened point).
The articles mentioned how glass cockpit components had the added benefit of being a few hundred pounds lighter than the original flight instruments and support systems used in the Space Shuttles. The Space Shuttle Atlantis was the first orbiter to be retrofitted with a glass cockpit in 2000 with the launch of STS-101.
Pardo and Aman eventually completed their Air Force careers, both retiring in the rank of lieutenant colonel. In later years, Pardo, learning that Aman was suffering from Lou Gehrig's disease and had lost his voice and mobility, created the Earl Aman Foundation that raised enough money to buy Aman a voice synthesizer, a motorized wheelchair, and a computer.
The General Electric GE36 was an experimental aircraft engine, a hybrid between a turbofan and a turboprop, known as an unducted fan (UDF) or propfan.The GE36 was developed by General Electric Aircraft Engines, [3] with its CFM International equal partner Snecma taking a 35 percent share of development. [4]