Invention Grant
- Patent Title: Hybrid apparatus and method for hydraulic systems
- Patent Title (中): 液压系统的混合装置和方法
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Application No.: US14146994Application Date: 2014-01-03
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Publication No.: US09458604B2Publication Date: 2016-10-04
- Inventor: Jiao Zhang , Michael Schwab , Pengfei Ma
- Applicant: CATERPILLAR INC.
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agency: Hibshman Claim Contruction PLLC
- Main IPC: F15B1/02
- IPC: F15B1/02 ; E02F9/22 ; F15B21/14

Abstract:
A hydraulic apparatus and a method of operating the hydraulic apparatus are disclosed. The hydraulic apparatus includes a flow control module, a first pump fluidly coupled to the flow control module via a first conduit, a first rotating group fluidly coupled to the flow control module via a second conduit, a first actuator fluidly coupled to the flow control module, a second actuator fluidly coupled to a second pump, a first accumulator, and a controller operatively coupled to the flow control module, the first charge valve, and the discharge valve. The first rotating group is configured to perform a pumping function and a motor function. The first accumulator is in selective fluid communication with the first actuator via a third conduit and a first charge valve, the second actuator via a fourth conduit and the first charge valve, and the first rotating group via a discharge valve.
Public/Granted literature
- US20150191897A1 HYBRID APPARATUS AND METHOD FOR HYDRAULIC SYSTEMS Public/Granted day:2015-07-09
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