Arthur W Haag

US Patent:

55928188, Jan 14, 1997

Filed:

Jul 26, 1994

Appl. No.:

8/280426

Inventors:

Arthur F. Haag - Green Isle MN
William A. Byrd - Minneapolis MN

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

F16D 3900

US Classification:

60487

Abstract:

A hydrostatic transmission is disclosed comprising a radial ball pump (11) and a radial ball motor (13) wherein the normal journal member (33) may be replaced by an alternative or modified journal member (33'), such that even with a reverse direction of actuation of the displacement control (49), the HST still operates in the forward direction, with no other changes required. The present invention also includes a simplified dump valve member (107) comprising a single, unitary member which may be merely inserted to its assembled position in which a pair of retention portions (123, 135) retain the dump valve, and permit it to pivot about the retention portions from an unactuated position to an actuated position.