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:
May. 07, 2013
Filed:
May. 04, 2010
Seock Joong Yoon, Seoul, KR;
Kyung MO Kim, Hwaseong-si, KR;
Seock Joong Yoon, Seoul, KR;
Kyung Mo Kim, Hwaseong-si, KR;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Abstract
An engine brake unit, may include a rocker shaft having an oil passage to open or close an exhaust valve when an engine braking is in operation, an exhaust rocker arm rotatable about the rocker shaft inserted into the exhaust rocker arm, wherein the exhaust rocker arm includes a supply oil passage communicating with the oil passage and the outside, and a recess connected to the supply oil passage and having an open lower portion, an actuator disposed in the recess of the exhaust rocker arm, wherein the actuator includes a piston that selectively moves downwards through the open lower portion of the recess by oil supplied from the supply oil passage to press the exhaust rocker arm while oil pressure in the oil passage has a predetermined pressure or more, and an oil control valve connected to the oil passage of the rocker shaft and controlling the oil pressure.