Title:
液圧伝達モジュール内の回転要素を潤滑するためのループフラッシング回路
Document Type and Number:
Japanese Patent JP4341803
Kind Code:
B2
Abstract:
A loop flushing circuit for a hydrostatic transmission module includes a three position, three port pilot pressure operated loop flushing valve having a first inlet port fluidly connected to the first system pressure line, a second inlet port fluidly connected to the second system pressure line and an outlet port fluidly connecting the loop flushing valve to the case drain through a drain line having a drain orifice therein. A loop flushing and lubrication line fluidly connected to the drain line upstream of the drain orifice extends within the casing and has an open end directed toward the rotating elements of one of the pump and motor. The three position valve has an intermediate position operatively located between the opposite end positions. System pressure from at least one of the first and second system pressure lines is always routed to the loop flushing and lubrication line through the valve regardless of which of the three positions the valve is in. Thus, lubricating for the rotating elements is insured, even when the hydrostatic transmission module is in neutral.
Inventors:
Stephen H Gluck
Jeffrey A. Baldas
Jim Dee Riken
Jeffrey A. Baldas
Jim Dee Riken
Application Number:
JP2000296418A
Publication Date:
October 14, 2009
Filing Date:
September 28, 2000
Export Citation:
Assignee:
Sauer Danfoss Incorporated
International Classes:
F15B7/10; F16D31/02; F16H39/00; F16H61/40; F16H61/4104; F16N9/04
Domestic Patent References:
| JP7017859U | ||||
| JP11030304A | ||||
| JP7012657U | ||||
| JP9100909A | ||||
| JP11223175A |
Attorney, Agent or Firm:
Soichi Takezawa
Yutaka Kuramochi
Noritsugu Nakama
Yutaka Kuramochi
Noritsugu Nakama