US 12,281,629 B2
Sealing ring gland and fuel pump including the same
Alejandro Moreno, El Paso, TX (US)
Assigned to PHINIA JERSEY HOLDINGS LLC, Wilmington, DE (US)
Filed by DELPHI TECHNOLOGIES IP LIMITED, St. Michael (BB)
Filed on May 25, 2023, as Appl. No. 18/201,928.
Application 18/201,928 is a continuation of application No. 17/695,133, filed on Mar. 15, 2022, granted, now 11,725,616.
Prior Publication US 2023/0296069 A1, Sep. 21, 2023
Int. Cl. F02M 37/18 (2006.01); F02M 37/04 (2006.01); F02M 37/20 (2006.01); F04D 5/00 (2006.01); F04D 9/00 (2006.01); F04D 9/04 (2006.01)
CPC F02M 37/18 (2013.01) [F02M 37/048 (2013.01); F02M 37/20 (2013.01); F04D 5/002 (2013.01); F04D 9/003 (2013.01); F04D 9/041 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A sealing ring gland which receives a sealing ring therein, said sealing ring gland comprising:
an inner wall surface which circumferentially surrounds an axis, said inner wall surface being configured to circumferentially seal against an inner periphery of said sealing ring;
an outer wall surface which circumferentially surrounds said axis and is radially offset from said inner wall surface, said outer wall surface being configured to circumferentially seal against an outer periphery of said sealing ring;
an upper wall surface which is transverse to said axis and which is configured to axially compress said sealing ring; and
a lower wall surface which is transverse to said axis and axially offset from said upper wall surface and which is configured to axially compress said sealing ring when said sealing ring is axially compressed by said upper wall surface;
wherein at least one of said upper wall surface and said lower wall surface includes an expansion volume which is recessed into said at least one of said upper wall surface and said lower wall surface such that said expansion volume intersects with said at least one of said upper wall surface and said lower wall surface, wherein said expansion volume either (i) intersects with said upper wall surface, extends radially outward from said inner wall surface, and terminates radially outward at a location between said inner wall surface and said outer wall surface, or (ii) intersects with said lower wall surface, extends radially inward from said outer wall surface, and terminates radially inward at a location between said inner wall surface and said outer wall surface, or (iii) both (i) and (ii), and said expansion volume has a width in the radial direction that is less than 50% of a diameter of said sealing ring, thereby providing space for said sealing ring to expand upon swelling of said sealing ring.