Patent ID: 9151365
Filing Date: 2015-10-06
Classification: F16H

Abstract:
1. A hydraulic pressure timing chain tensioner comprising: a housing configured for mounting to a cylinder block of an engine; an operating unit case having a hollow cylinder shape, inserted into the housing, and fixed inside of the housing; a plunger having a hollow cylinder shape and disposed to reciprocate within a hollow of the operating unit case; a high pressure chamber formed by the hollow of the operating unit case and a hollow of the plunger; a low pressure chamber partially defined by the housing and communicating with the high pressure chamber; a supply hydraulic path formed in the housing to supply oil from an oil supply to the low pressure chamber; and a regulator controlling hydraulic pressure of the low pressure chamber; wherein hydraulic pressure of the high pressure chamber for reciprocating the plunger is controlled according to hydraulic pressure of the low pressure chamber controlled by the regulator, wherein the regulator comprises: