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:
Jun. 06, 2017
Filed:
Feb. 11, 2013
Applicant:
Atlas Copco Construction Tools Ab, Stockholm, SE;
Inventors:
Magnus Karlsson, Ljungbyholm, SE;
Torkel Danielsson, Nybro, SE;
Assignee:
CONSTRUCTION TOOLS PC AB, Kalmar, SE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16D 31/02 (2006.01); F15B 21/04 (2006.01);
U.S. Cl.
CPC ...
F15B 21/042 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/62 (2013.01);
Abstract
A separate hydraulic power pack for providing at least one user with an oil flow. The hydraulic unit includes a motor, a hydraulic pump driven by the motor, a tank, an oil inlet, an oil outlet, a heat exchanger, and a first conduit system for oil. The first conduit system connects at least the oil inlet, the heat exchanger, the oil tank, the hydraulic pump and the oil outlet. The heat exchanger is provided for liquid cooling of the oil. A cooling liquid inlet for connection to a cooling liquid source, a first cooling liquid outlet and a second conduit system for a cooling liquid.