Shaft seal and bore assembly
AssigneeFreudenerg-NOK General Partnership
InventorsJohn J. Nelson, Lawrence E. Bell
Life of this patent
Estimating the term…
Abstract
An oil seal, and in combination therewith a housing having a bore with a non-continuous groove. The oil seal has a locking or retention rib held within the non-continuous groove and a second sealing rib in compression fit against the sealing surface of the bore.
Claims32
A housing cover and seal assembly wherein:
- said housing cover comprises a single piece construction having a first surface containing a cylindrical bore defined by an annular flange, said annular flange containing a plurality of circumferentially aligned radial grooves and said flange also having a circumferential sealing surface on its radially inner surface;
- and
- said seal comprises an annular base member having a radially outwardly extending locking rib engaging at least one of said plurality of grooves in a locking arrangement.
A seal for use in combination with a sealing surface within the cylindrical bore of a housing cover, said seal comprising:
- an annular base member;
- at least one annular rib extending radially outwardly from said base member;
- a sealing face on the inner circumference of said seal, said sealing face having a plurality of ridges uniformly spaced about its entire circumference;
- said ridges being approximately the same length and parallel, and oriented diagonally of the axis of said seal.
A unitary engine cover for use with an O-ring seal having at least one radially outwardly extending rib, said engine cover comprising:
- a surface defining a portion of a fluid containing chamber;
- a port within said surface defined by an annular flange, said flange having a substantially smooth sealing surface on its inner diameter and a plurality of circumferentially aligned radial grooves.
A unitary engine cover for use with a removable O-ring seal having at least one radially outwardly extending rib, said engine cover comprising:
- a surface defining a portion of a fluid containing chamber;
- a port within said surface defined by an annular flange, said flange having a substantially smooth sealing surface on its inner diameter and at least one radially inwardly extending seal retaining member adjacent to said sealing surface, said seal retaining member having a first surface facing axially outwardly from said chamber for retaining said seal and a second distinct surface facing axially outwardly from said chamber and spaced axially inward and radially inward of said first surface to allow insertion of a seal removal tool.
A housing cover and seal assembly wherein:
- said housing cover comprises a single piece construction having a first surface containing a cylindrical bore defined by an annular flange, said annular flange containing a plurality of circumferentially aligned radial grooves and said flange also having a circumferential sealing surface on its radially inner surface;
- and
- said seal comprises a annular base member having a radially outwardly extending locking rib engaging at least one of said plurality of grooves in a locking arrangement, said locking rib having a rounded cross section at its axially outward edge.
Dependencies are inferred from the claim text.