All Products RevFlow Injector Carburetor Technical Study (continued)

The fuel inlet fitting is a flared AN-4. The unit is mounted to the intake system by a hose and two clamps. The hose I.D. on most units is 1.5". Flanged adapters can be provided on request.

In the event multiple units are required, such as for in-line engine applications, up to four units can be ganged on a single throttle shaft.

RevFlow injector sizes range from 28, 30, 32, 34, 36, 38, 40, 42, and 44mm. An alternate air source assembly is recommended for most single unit installations. This unit consists of an air filter, open on both ends, mounted onto the air horn of the injector and held on with a clamp. The ram air tube is clamped onto the opposite end.

The tube incorporates a valve that controls the ram air. When in the closed position the ram air is cut off and the engine is digesting warm filtered cowled air.

The RevFlow injector is a 1 to 2 psi low pressure injector. It will function well on gravity feed, although some applications require a fuel pump. When a fuel pump is installed, the fuel pressure should be maintained at a nominal 1.5 psi. This is best accomplished with a fuel return line to the source. The return line can be restricted to achieve the 1.5 psi.

For VW engine applications, Revmaster manufactures a special oil pump/fuel pump/oil filter assembly. This allows for an engine-driven fuel pump to be incorporated into certain requirements.

The RevFlow injector unit is floatless; therefore, it lends itself to many installation configurations; horizontal, vertical, etc. The RevFlow injectors have been installed in many various types of experimental aircraft over the years, with excellent service history. The unit is not type certificated and no such claims have been made, intentionally or otherwise.