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[CN 201880095423.2] Hydraulic Machinery Title: Hydraulic Machinery Application Number: CN 201880095423.2 Applicant: Volvo Construction Equipment Company Application Date: 2018-7-12 Patent Type: Invention Application In the hydraulic machinery, the first travel control valve (6) and the first The accessory control valve (7) is in fluid communication with the second hydraulic source (33). The confluence control valve (3) is in fluid communication with the first hydraulic pressure source and directs fluid from the first hydraulic pressure source to the first accessory control valve (7) in the confluence position. The first signal line (28) and the first pilot line (Pi3) are connected to the confluence control valve (3). When the first travel control valve (6) is in the non-neutral position and the first accessory control valve (7) is in the first non-neutral position, a first signal pressure is generated in the first signal line (28) to move the confluence control valve (3) to the confluence position. When a first pilot pressure is generated in the first pilot line (Pi3), the first pilot pressure moves the confluence control valve (3) to the confluence position.
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