Invention Grant
US07543555B2 Hydraulic lash compensation device with mechanical lift loss feature 有权
液压间隙补偿装置具有机械升力损失功能

  • Patent Title: Hydraulic lash compensation device with mechanical lift loss feature
  • Patent Title (中): 液压间隙补偿装置具有机械升力损失功能
  • Application No.: US11832033
    Application Date: 2007-08-01
  • Publication No.: US07543555B2
    Publication Date: 2009-06-09
  • Inventor: David G. Genise
  • Applicant: David G. Genise
  • Applicant Address: US OH Cleveland
  • Assignee: Eaton Corporation
  • Current Assignee: Eaton Corporation
  • Current Assignee Address: US OH Cleveland
  • Agent Anna M. Shih
  • Main IPC: F01L1/14
  • IPC: F01L1/14
Hydraulic lash compensation device with mechanical lift loss feature
Abstract:
A hydraulic lash compensation device for an engine includes a plunger assembly slidingly received within a body bore to define a high pressure chamber. The plunger assembly includes a lower pressure chamber, an upper plunger element, and a lower plunger element. A mechanical lift loss feature includes a generally annular lift stop member retained to the upper plunger element by an adjustment member that extends through the lift stop member and is adjustably received in upper plunger element. The lift stop member is biased away from upper plunger element by a spring. When the upper plunger element is received into the body, the upper plunger element is offset a predetermined distance from the lower plunger element by virtue of the lift stop member's engagement with the lower plunger element. The offset is adjustable based on the position of the lift stop member relative to the upper plunger element.
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