Hydraulikkreislauf eines Arbeits- oder Landwirtschaftlichen Fahrzeugs

Details

Veröffentlichungs-Nr.

EP4737234

Anmeldetag

3. November 2025

Veröffentlichung

6. Mai 2026

Rechtsraum

EP

IPC

B60T13/68, B60T13/00(STOOPS ERNEST E et al.)

Abstract

Hydraulic circuit (HC) for an agricultural or work vehicle, wherein the agricultural or work vehicle comprises at least one working part such as an arm, a hydraulic lift, etc., a braking system (BI) comprising service braking means (7) and parking braking means (3, SAHR), and a user interface (14) for receiving a braking request from a user of the vehicle; wherein the hydraulic circuit comprises a variable displacement hydraulic pump (1), operatively connected to a directional valve assembly (4) for supplying said at least one working member, comprising a discharge valve (2) for recirculating hydraulic oil through cooling means, wherein said braking system comprises at least one braking valve (7) for actuating said service brake, operatively connected to said hydraulic pump, said parking braking means are configured to activate in response to said braking request, when a fault in said service braking means (7) is detected, said discharge valve is set so that an opening pressure threshold of the discharge valve is greater than a maximum supply pressure value of said at least one braking valve (7).

Anmelder

Firma

CNH Industrial Italia S.p.A.

Land

🇮🇹 Italien