Hydraulic control system having energy recovery kit

摘要

An energy recovery retrofit kit for a hydraulic control system is disclosed. The energy recover retrofit kit may have a first accumulator and a second accumulator. The energy recover retrofit kit may also have a recovery valve block fluidly connectable between an existing pump and an existing motor of the hydraulic system. The recovery valve block may be configured to selectively fluidly communicate the first and second accumulators with the existing motor.

主权项

1. An energy recovery retrofit kit for a hydraulic system, comprising:
a first accumulator; a second accumulator; and a recovery valve block fluidly connectable between an existing pump and an existing motor of the hydraulic system, the recovery valve block including:
a housing at least partially defining a first internal passage fluidly connectable with the existing motor and the existing pump, a second internal passage fluidly connectable with the existing motor and the existing pump, and a first accumulator passage fluidly connectable with the first accumulator; anda selector valve disposed within the housing and movable to selectively connect a higher-pressure one of the first and second internal passages and with the first accumulator passage.