Patent ID: 6279317
Filing Date: 2001-08-28
Classification: F16H

Abstract:
A closed loop hydrostatic drive with regeneration circuit comprising:a) a first pump which draws fluid from a lower pressure line and supplies a higher pressure line,b) a charge pump with,c) at least one one-way check valve in a supply line between said charge pump and said first pump,d) at least one hydraulic motor having an inlet and an outlet,e) a valve means in fluid communication with the outlet of said at least one hydraulic motor andd) a rotary flow dividerwherein said first pump supplies fluid to the at least one hydraulic motor,wherein exhaust flow from the at least one hydraulic motor can be diverted to the rotary flow divider by said valve means,wherein a portion of the flow from the rotary flow divider is returned at low pressure to said lower pressure line of said closed loop hydrostatic drive, andwherein a portion of the flow through the rotary flow divider is supplied to said higher pressure line resulting in a volume of flow into said at least one hydraulic motor that is greater than the volume supplied by said first pump.