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US 2009/0266332 A1Published application
Seal structure, chain case, and seal structure formation method
AssigneeToyota Jidosha Kabushiki Kaisha
InventorNaoya Kawamoto
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AssigneeToyota Jidosha Kabushiki Kaisha
InventorNaoya Kawamoto
Estimating the term…
A chain case disposed opposite an interval between a cylinder block and a cylinder head sandwiching a gasket includes a liquid sealing material guiding recessed portion that opposes the interval and is entirely surrounded by a seal surface. During seal structure formation, a large amount of a liquid sealing material is caused to flow forcefully toward the interior of the interval when an operation is performed to fasten the chain case to the cylinder block and the cylinder head such that the liquid sealing material flows to the innermost portion of the interval, and as a result, the liquid sealing material can reach an end portion of the gasket reliably. Hence, the liquid sealing material can flow sufficiently to positions requiring sealing, whereby lubricating oil leakage from the interior of the chain case can be prevented.
A seal structure comprising a part which includes an interval between a first member and a second member sandwiching a gasket, and in which a third member is disposed to face the first member and the second member via a liquid sealing material, wherein a seal surface of the third member comprises a liquid sealing material guiding recessed portion that opposes the interval and is entirely surrounded by the seal surface, and an internal region of the liquid sealing material guiding recessed portion includes a part of a region to which the liquid sealing material is applied.
A seal structure comprising a part which includes an interval between a first member and a second member sandwiching a gasket, and in which a third member is disposed to face the first member and the second member via a liquid sealing material, wherein a seal surface on one or both of the first member and the second member comprises a liquid sealing material guiding recessed portion that is entirely surrounded by the interval and the seal surface, and
A chain case that is attached to a cylinder head and a cylinder block of an internal combustion engine, between which a gasket is sandwiched, including an interval between the cylinder head and the cylinder block, by disposing a flange portion to face thereto via a liquid sealing material,
A method of forming a seal structure for a constitution in which a gasket is sandwiched between a first member and a second member by mating a third member coated with a liquid sealing material to the first member and the second member,
Dependencies are inferred from the claim text.