Abstract: A connector, for example as shown in FIG. 1, for use in supplying fuel to a fuel injector comprises a tubular member arranged to be received, in use, within an opening provided in an engine cylinder head, the tubular member being shaped, at a first end thereof, for cooperation with part of the fuel injector, a second end of the tubular member being shaped for cooperation with an inlet adapter member. The inlet adaptor member is secured, in use, within the opening, the inlet adapter member and the tubular member defining a flow passage whereby fuel can be supplied, under pressure, to the fuel injector.

Abstract: A system is provided for the delivery of a liquid anesthetic agent ti ab anesthetic vaporizer. The system includes a supply container having a spout defining an outlet through which the agent can be discharged. A reservoir is provided in the vaporizer for holding the agent, and a receiving station is provided on the vaporizer for receiving the container spout. The agent flows from the container through the spout by gravity into the reservoir. The container spout is located at the station to define the maximum liquid level of the agent in the vaporizer when gas flow into the container is blocked by the rising level of the liquid agent. In one embodiment, a frangible seal is provided in the container, an outlet valve is provided in the container, and an inlet valve is provided in the receiving station. The valves open automatically as the container is inserted into the receiving station of the vaporizer.

Abstract: A fuel pumping apparatus for supplying fuel to an internal combustion engine has an injection pump supplied with fuel by a low pressure feed pump through an adjustable throttle. A fluid pressure operable piston is movable against the action of a spring to control the timing of delivery of fuel by the injection pump. Fuel under pressure is applied to the piston through a first fixed orifice from the feed pump. A second fixed orifice and a variable orifice are connected in series between a drain and the downstream side of the first fixed orifice. In parallel with the first fixed orifice is a constant pressure drop valve which maintains the pressure drops across the first fixed orifice substantially constant when the pressure drop has risen to a predetermined value.

Abstract: A fuel injection pumping apparatus for supplying fuel to a compression ignition engine has a low pressure pump which supplies fuel to a high pressure pump by way of a throttle. The high pressure pump has a piston for varying the timing of delivery of fuel. A first fixed orifice connects the outlet of the low pressure pump to the cylinder containing the piston and a second fixed orifice connects the cylinder with a drain by way of a variable orifice. In parallel with the second fixed orifice is a bypass valve including a valve member responsive to the pressure applied to the piston and which with increasing pressure opens to allow fuel to escape through a further fixed orifice from downstream of the second fixed orifice.

Abstract: Anaesthesia equipemnt comprising an anaesthesia unit such as a vaporizer detachably mounted on a mounting rack by connecting means comprising guide means to provide substantial leak-proof engagement of the connecting means.The guide means may comprise an elongated pin or tongue mounted on the unit or rack to cooperatively engage an aperture groove or slot on the rack or unit respectively to substantially prevent movement of the unit towards or away from the rack when mounted thereon.

Abstract: A liquid fuel pumping apparatus includes a plunger and a piston which together are moved inwardly by cam means to deliver excess fuel for starting an engine, the plunger only being effective to supply fuel to the engine when the latter has attained a predetermined speed. The piston constitutes a valve to permit fuel and any air contained within the cylinder to escape from the cylinder during the initial inward movement of the piston.

Abstract: A fuel pumping apparatus comprises a piston movable by fluid pressure to vary the timing of delivery of fuel to an associated engine. Valve means provides fuel under pressure which varies in accordance with the speed at which the engine is driven and fuel at this pressure is applied to the piston through a first fixed orifice. A second fixed orifice is connected to the downstream side of the first orifice and a variable orifice is provided to control the fluid flow through the second orifice. The size of the variable orifice is dependent upon the amount of fuel supplied to the associated engine by the apparatus. In addition a pressure responsive valve is provided which defines a flow path connected in parallel with one of the orifices, the valve being subjected to a fluid pressure within the system.