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US 11,079,020 B2Granted
Seal ring and seal structure
AssigneeIllinois Tool Works Inc.
InventorYue Ma
Life of this patent
Estimating the term…
Abstract
A seal ring is provided for sealing a rotating shaft. The seal ring has an outer wall and an inner wall. The outer wall includes one or more external ribs, and the external ribs are disposed along a circumferential direction of the outer wall. The inner wall includes one or more seal contact parts extending inwards from the inner wall, and the seal contact parts are disposed along a circumferential direction of the inner wall. The seal ring is made of an elastic material.
Claims19
A seal structure ring comprising:
- a housing comprising a partition board;
- a first seal ring having an outer wall and an inner wall, wherein the outer wall includes one or more external ribs, the external ribs being disposed along a circumferential direction of the outer wall, wherein the inner wall includes one or more seal contact parts extending inwards from the inner wall, the seal contact parts being disposed along a circumferential direction of the inner wall;
- a supporting part extending downward from a lower surface of the partition board, wherein the first seal ring abuts against the supporting part;
- a second seal ring positioned above the first seal ring;
- a valve body, a downwardly recessed cavity being provided at a top portion of the valve body;
- and
- a rotating shaft extending through an opening of the partition board and passing through the cavity, the first seal ring and the second seal ring abutting against the rotating shaft,
- wherein an adjustment contact part is provided at a bottom portion of the cavity of the valve body, and an adjustment space is provided between the adjustment contact part and a lower portion of the first seal ring.
5 more elements
A seal structure, comprising:
- a housing comprising a partition board;
- a seal ring having an outer wall and an inner wall, wherein the outer wall includes one or more external ribs, the external ribs being disposed along a circumferential direction of the outer wall, and wherein the inner wall includes one or more seal contact parts extending inwards from the inner wall, the seal contact parts being disposed along a circumferential direction of the inner wall;
- a supporting part extending downward from a lower surface of the partition board;
- a valve body, a downwardly recessed cavity being provided at a top portion of the valve body;
- and
- a rotating shaft extending through an opening of the partition board and, passing through the cavity, the seal ring being disposed between the supporting part and the rotating shaft,
- wherein an adjustment contact part is provided at a bottom portion of the cavity of the valve body, and an adjustment space is provided between the adjustment contact part and a lower portion of the seal ring,
- wherein an outer diameter of the adjustment contact part is smaller than an inner diameter of the supporting part, and
- wherein the seal ring is made of an elastic material.
6 more elements
A thermostat, comprising:
- a housing;
- a partition board arranged in the housing, wherein the partition board divides a space in the housing into an upper chamber and a lower chamber, and wherein a passage extends through the partition board and through the housing;
- a supporting part extending downward from a lower surface of the partition board;
- a valve body disposed in the lower chamber of the housing, a downwardly recessed cavity being provided at a top portion of the valve body;
- a rotating shaft extending through an opening of the partition board and passing through the cavity;
- a first seal structure positioned between the supporting part and the rotating shaft;
- and
- a second seal structure positioned above the first seal structure and abutting against the rotating shaft,
- wherein an adjustment contact part is provided at a bottom portion of the cavity of the valve body, and an adjustment space is provided between the adjustment contact part and a lower portion of the first seal structure.
6 more elements
Dependencies are inferred from the claim text.