METHOD AND ARRANGEMENT FOR MOUNTING FUEL RAILS

摘要

A mounting arrangement and method for installing fuel injectors (26) into a molded composite intake manifold (10) having an integral fuel rail (18) provides an aligned injector pocket bore (22) in the fuel rail portion and an injector seat bore (24) in an intake manifold runner. The seating bore (24) is oversized to allow the injector (26) to be angled to enable the tip (28) to be advanced into the seat bore (24), allowing the injector one end (30) to be thereafter swung into alignment with the pocket bore (22) and inserted therein. A seal (34) has an integral tubular portion (40) configured to fit over the injector tip (28) and within the injector seat bore (24) to be located therein. When the manifold (10) is assembled onto the cylinder head (42), the seal (34) is squeezed to grip the injector tip (28) and sealed within the injector seat bore (24).