Abstract A method of securing a funnel-shaped guide member in the bore wall of the p-shaped casing of a self-adjusting hydraulic tappet for overhead camshaft internal combustion engines comprising first introducing a funnel-shaped guide member (2) into the bore of the cup-shaped casing (1) made of a ferrous material and being initially unhardened, the guide member (2) bearing on a shoulder (9) of the bore and then in any sequence: (a) On that side of the guide member (2) which is opposite the shoulder (9), chiplessly forming material from the bore wall so as to bear sealingly on the guide member (2) and thus to locate the same relatively to the casing (1); (b) Sealing the joint between the cup-shaped casing (1) and the funnel-shaped guide member (2) by welding or soldering.
A method of securing a funnel shaped guide member in the bore wall of the cup-shaped casing of a self-adjusting hydraulic tappet for overhead camshaft internal combustion engines comprising first introducing a funnel shape guide member (2) into the bore of the cup-shaped casing (1) made of a ferrous material and being initially unhardened, the guide member (2) bearing on a shoulder (9) of the bore and then in any sequence: (a) On that side of the guide member (2) which is opposite the shoulder (9), chiplessly forming material from the bore wall so as to bear sealingly on the guide member (2) and thus to locate the same relatively to the casing (1); (b) Sealing the joint between the cup-shaped casing (1) and the funnel-shaped guide member (2) by welding or soldering.
Claim 2
Independent Claim
133 words
A method of securing a funnel shaped guide member in the bore wall of the cup-shaped casing of a self-adjusting hydraulic tappet for overhead camshaft internal combustion engines comprising first introducing a funnel shape guide member (2) into the bore of the cup-shaped casing (1) made of a ferrous material and being initially unhardened, the guide member (2) bearing on a shoulder (9) of the bore and then in any sequence: (a) On that side of the guide member (2) which is opposite the shoulder (9), chiplessly forming material from the bore wall so as to bear sealingly on the guide member (2) and thus to locate the same relatively to the casing (1); (b) Sealing the joint between the cup-shaped casing (1) and the funnel-shaped guide member (2) by welding or soldering.
Claim 3
Dependent Claim
34 words
A method of claim 1 wherein material is formed from the bore wall over the entire periphery of the bore in the form of a peripheral bead (11) which bears on the guide member(2).
Claim 4
Dependent Claim
32 words
A method of claim 1 wherein material is formed from the bore wall only at discrete places of the periphery in the form of projections which bear on the guide member (2).