Split piston ring unit
AssigneeMahle International GmbH
InventorsPetru M. Berghian, Fabio Mendes de Araujo
Life of this patent
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Abstract
A split piston ring unit may include a first ring body, a second ring body, and a spacer insert. The first ring body may define a first circumferential gap. The second ring body may define a second circumferential gap. The spacer insert may be coupled to the first ring body and the second ring body. The first ring body and the second ring body may be arranged coaxially and oriented in an offset orientation where the first circumferential gap and the second circumferential gap are disposed circumferentially offset from one another by an offset distance. The spacer insert may be disposed in the offset distance between the first circumferential gap and the second circumferential gap to maintain the offset orientation.
Claims20
A split piston ring unit, comprising:
- a first ring body defining a first circumferential gap;
- a second ring body defining a second circumferential gap;
- a spacer insert coupled to the first ring body and the second ring body;
- the first ring body and the second ring body arranged coaxially and oriented in an offset orientation where the first circumferential gap and the second circumferential gap are disposed circumferentially offset from one another by an offset distance;
- and
- wherein the spacer insert is disposed in the offset distance between the first circumferential gap and the second circumferential gap to maintain the offset orientation.
A piston for a combustion engine, comprising at least one ring groove and a split piston ring unit arranged in the at least one ring groove, the split piston ring unit including:
- a first ring body defining a first circumferential gap;
- a second ring body defining a second circumferential gap;
- a spacer insert coupled to the first ring body and the second ring body;
- the first ring body and the second ring body arranged coaxially and oriented in an offset orientation where the first circumferential gap and the second circumferential gap are disposed circumferentially offset from one another by an offset distance;
- and
- wherein the spacer insert is disposed in the offset distance between the first circumferential gap and the second circumferential gap to maintain the offset orientation.
An internal combustion engine, comprising at least one cylinder, a piston slidably arranged in the at least one cylinder, and a split piston ring unit arranged in a ring groove of the piston, the split piston ring unit including:
- a first ring body defining a first circumferential gap;
- a second ring body defining a second circumferential gap;
- a spacer insert coupled to the first ring body and the second ring body;
- the first ring body and the second ring body arranged coaxially and oriented in an offset orientation where the first circumferential gap and the second circumferential gap are disposed circumferentially offset from one another by an offset distance;
- and
- wherein the spacer insert is disposed in the offset distance between the first circumferential gap and the second circumferential gap to maintain the offset orientation.
Dependencies are inferred from the claim text.