Patent ID: 8621979
Filing Date: 2014-01-07
Classification: F01M,F16C,F16N

Abstract:
1. A positive displacement pump comprising: a lubricant manifold comprising a first fluid pathway therein; a housing comprising a second fluid pathway therein, wherein the second fluid pathway is in fluid communication with the first fluid pathway; at least one crosshead slide arranged within the housing, wherein the crosshead slide comprises a third fluid pathway, and wherein the third fluid pathway is in fluid communication with the second fluid pathway; a crosshead configured to reciprocate within the at least one crosshead slide, wherein the crosshead comprises a fourth fluid pathway therein, wherein the fourth fluid pathway is in fluid communication with the third fluid pathway, wherein the crosshead comprises a wrist-pin having a fifth fluid pathway therein, and wherein the fifth fluid pathway is in fluid communication with the fourth fluid pathway; a crankshaft contained within the housing; and a connecting rod disposed between the crosshead and the crankshaft and connected thereto, wherein the connecting rod comprises a sixth fluid pathway therein, wherein the sixth fluid pathway is displaced from a centerline of the connecting rod, wherein the sixth fluid pathway is in fluid communication with the fifth fluid pathway, and wherein the crankshaft end of the connecting rod comprises a seventh fluid pathway in fluid communication with the sixth fluid pathway.