The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 1991
Filed:
Dec. 11, 1989
Applicant:
Inventor:
Matti Sampo, Turenki, FI;
Assignee:
Toiminimi Kone-Sampo, Turenki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ;
U.S. Cl.
CPC ...
417364 ; 417287 ;
Abstract
A power aggregate comprising a two-stroke engine, a piston rigidly linked together by means of a piston rod, a plurality of pump cylinders circumferentially mounted around the piston rod and a corresponding number of pump pistons fixed to the piston rod through the intermediary of radial rods or a flange, for reciprocation within the pump cylinders. Each pump cylinder is provided with hydraulic fluid intake and pressure ducts, and at least two of the pump cylinders have different diameters. The hydraulic duct of one or several pump cylinders operates its own hydraulic motor or actuator cylinder.