Patent ID: 9341175
Filing Date: 2016-05-17
CPC Classification: F04B,F04D,F16J,Y10T

Claim Text:
1. A seal for a pump, the seal comprising: a seal housing configured to be received in a housing of the pump; a seal assembly received in the seal housing, the seal assembly comprising a seal spacer, a rotating seal, and a stationary seal; a seal holder receiving at least a portion of the seal assembly, the seal holder being configured to rotate with respect to the seal housing; a guide coupled to the seal housing and retaining the seal holder, such that the seal holder rotates with respect to the seal housing; and a sleeve abutting the seal spacer, wherein the seal holder, seal spacer, and sleeve are configured to extend around a shaft of the pump and between a piston of the pump and a bearing of the pump, wherein the rotating seal and the stationary seal are positioned around the seal spacer, and wherein the rotating seal and the stationary seal comprise a rotating face seal and a stationary face seal, respectively, and wherein the seal holder abuts the seal spacer and rotates with the seal spacer and the rotating seal, and during operation of the pump, the seal holder and at least a portion of the seal assembly rotate.