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US 2018/0323582 A1Published application
Spark plug having an increased tightening torque
AssigneeRobert Bosch GmbH
InventorsBa Thien Chuong Vo, Chris Schimmel
Life of this patent
Estimating the term…
Abstract
A spark plug, including an insulator, a casing including a sealing surface, and a gasket which rests against the sealing surface, the sealing surface including a plurality of recesses.
Claims13
1-11. (canceled)
A spark plug, comprising:
- an insulator;
- a casing including a sealing surface;
- and
- a gasket which rests against the sealing surface;
- wherein the sealing surface includes a plurality of recesses.
2 more elements
An internal combustion engine, comprising:
- a spark plug, including:
- an insulator;
- a casing including a sealing surface;
- and
- a gasket which rests against the sealing surface;
- wherein the sealing surface includes a plurality of recesses;
- and
- a metric M8 thread connection or a metric M10 thread connection between the spark plug and the cylinder head.
5 more elements
Dependencies are inferred from the claim text.