초록 ▼

An apparatus and method of attaching an exhaust manifold to an engine's cylinder head utilizing an oversized hole in the manifold, a stud fastener extending through the oversized hole, a spacer element around the stud fastener, and a nut adapted to be tightened to engage the spacer element and the f

An apparatus and method of attaching an exhaust manifold to an engine's cylinder head utilizing an oversized hole in the manifold, a stud fastener extending through the oversized hole, a spacer element around the stud fastener, and a nut adapted to be tightened to engage the spacer element and the flange wherein a flat gasket is compressed to a desired extent which is not so excessive that it inhibits sliding movement caused by thermal growth of the manifold.

대표청구항 ▼

[ We claim:] [1.]1. An arrangement for fastening an exhaust manifold (1) on to a cylinder head (8) of an internal combustion engine, the manifold having an inlet flange (3) with at least one hole (4), a threaded fastener (5) extending through the hole and attached to the cylinder head (8) by means o

[ We claim:] [1.]1. An arrangement for fastening an exhaust manifold (1) on to a cylinder head (8) of an internal combustion engine, the manifold having an inlet flange (3) with at least one hole (4), a threaded fastener (5) extending through the hole and attached to the cylinder head (8) by means of which the flanges (3) are secured to the cylinder head (8), and a flat gasket (7) interpositioned between the manifold and cylinder head and including a device to effectively space the manifold from the cylinder head to allow sliding movement therebetween caused by thermal growth comprising: a spacer element (9;12) seated between the fastener and the cylinder head and sized relative to the hole so as to provide a lateral clearance supported on the cylinder head (8) and having a length dimension less than the thickness of the manifold flange to an extent sufficient to desirably compress the gasket for providing sufficient sealing but also to limit the clamp load imparted by the threaded fastener on the connection between the exhaust manifold, gasket, and cylinder head to allow lateral sliding movement of the manifold relative to the cylinder head caused by thermal growth of the manifold.