This invention relates to apparatus which harmlessly purges all fluids which leak from the fittings of a turbofan aircraft engine. Purging is achieved by passing a low speed flow of ventilating air along the exterior walls of the engine combustor section. This is accomplished by enshrouding the engine core with a cylindrical cowl. A space between the cowl and the engine combustor makes an annular shaped cavity. Ports in the cowl allow air to be brought into the cavity from the bypass ducting of ...

There is described a method for localizing a leaking rod from a nuclear fuel assembly, in which for each rod in an assembly, the radio-activity in at least two discrete rod rows in which said rod lies is measured and a leaking rod is localized by sensing a lowering of the radio-activity in the tested rows where said rod lies relative to the radio-activity in an identical row of non-leaking rods. There is further described an equipment for the working of this method.

A liquid jetting pump of the present invention is constructed such that an intra container liquid is sucked into a cylinder 3 through a suction valve 9 by moving a vertically movable member 4 up and down, and the intra cylinder liquid is jetted out of a nozzle 29 through a discharge valve 31 from a stem 28. A plurality of ribs 10 are protruded in a peripheral direction from a lower edge part within the cylinder. Engagement recessed portions 11 are formed in inner parts of the upper surfaces of t...

A liquid jetting pump of the present invention is constructed such that an intra container liquid is sucked into a cylinder 3 through a suction valve 9 by moving a vertically movable member 4 up and down, and the intra cylinder liquid is jetted out of a nozzle 29 through a discharge valve 31 from a stem 28. A plurality of ribs 10 are protruded in a peripheral direction from a lower edge part within the cylinder. Engagement recessed portions 11 are formed in inner parts of the upper surfaces of t...

A water protection system apparatus for detecting and stopping a flow of water which includes a power supply, a water ionization switch, and a controlled valve assembly. The water ionization switch selectively conducts electricity when exposed to water and includes an initially dry non-conductive crystallized compound. The compound ionizes when exposed to water to form an electrolyte which conducts electricity. This switch is connected to a controlled valve assembly to stop the flow of water in ...

Pressure containment vessel apparatus includes a cylinder which receives a leaking gas cylinder and which includes an outwardly extending flange for receiving a dome. The dome includes a valve for venting the gas which leaks out of the leaking interior gas cylinder and locking elements which mate with fasteners on the outwardly extending flange to secure the top dome onto the cylinder.

An aircraft toilet system includes a holding tank and a discharge pipe which extends to a service panel located near the skin of the aircraft. A poppet valve is located near the outlet end of the discharge pipe. Leakage of fluids past the poppet valve is corrected in a first embodiment by pressurized cabin air which is ported to a downstream side of the poppet valve and by venting the upstream side of the valve to the atmosphere. In a second embodiment, high pressure air from the aircraft's envi...

Apparatus for preventing fuel from leaking on accidental turnover of a vehicle, the latter having a fuel tank, a carburetor and a passage communicating the tank with the carburetor, the apparatus comprising an ordinarily open safety valve such as a ball valve interposed in the passage, so arranged that, on the turnover of the vehicle, a pendulum-type weight detects the inclination of the vehicle, operating a cam to automatically close the safety valve. An optional fuel cock may be provided, for ...

Emergency security device adapted to be used on a head leaking gas cylinder comprising a cap adapted to be tightly fitted on the gas cylinder and connected to a pressure cylinder containing a purging inert gas and to a dry scrubber assembly containing a material neutralizing the leaking gas carried away from the cap by the purging gas.

In a vane pump, a pump housing assembly contains a cam ring having an internal cam surface. A rotor carrying plural vanes is disposed within the cam ring and rotated by a drive shaft. Both end surfaces of the cam ring contact with a pair of flat contact surfaces formed within the pump housing assembly, respectively, and the vanes define plural pump sectors between the rotor and the cam ring, together with the rotor, the cam ring and the pair of contact surfaces. The contact surfaces are formed w...