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US 11,459,889 B2Granted
Hydraulic arrangement for a steered wheel of a vehicle
OwnerSylvain Michon, Roman Prednyinventors
Life of this patent
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Abstract
The arrangement comprises a hydraulic machine with at least two operating cylinders, the hydraulic machine comprising a rotor part configured to be connected to the steered wheel and a stator part having main enclosures open in a receiving interface, and a pivot device that defines a pivot axis of the stator part and has main outer orifices linked to the main enclosures of the hydraulic machine in a connection interface. The arrangement further comprises a pilot line linked to a pilot chamber which has a pilot inlet in the receiving interface and the pilot line is formed in the pivot device and extends between an outer pilot orifice present in this device and a pilot opening located in the connection interface.
Claims22
A hydraulic arrangement for a steered wheel of a vehicle, comprising:
- a hydraulic machine comprising a rotor part configured to be connected to the steered wheel, a stator having two main enclosures having respective main openings located in a receiving interface, a set of pistons sliding in cylinders to drive in rotation the rotor part, a fluid distributor configured to establish selective links between the main enclosures and the cylinders, and a hydraulic component requiring hydraulic piloting between at least two positions having an influence on an operating mode of the hydraulic machine, the stator comprising a machine casing of the hydraulic machine, the cylinders and the fluid distributor being arranged in the machine casing,
- a pivot device which defines a pivot axis of the stator, the pivot device comprising two main outer orifices linked to respective connection openings located in a connection interface and configured to be fixed to a support while being engaged in a part of the machine casing and being linked to the stator of the hydraulic machine so that the receiving interface and the connection interface cooperate by linking the respective main openings and the respective connection openings, and
- a pilot line linked to a pilot chamber of the hydraulic component, the pilot chamber having a pilot inlet located in the receiving interface, the pilot line being formed in the pivot device and extending between an outer pilot orifice present in the pivot device and a pilot opening located in the connection interface, the pilot opening being linked to the pilot inlet by the cooperation of the connection interface and the receiving interface.
A hydraulic arrangement for a steered wheel of a vehicle, comprising:
- a hydraulic machine comprising a rotor part configured to be connected to the steered wheel, a stator having two main enclosures having respective main openings located in a receiving interface, a set of pistons sliding in cylinders to drive in rotation the rotor part, and a fluid distributor configured to establish selective links between the main enclosures and the cylinders,
- a pivot device which defines a pivot axis of the stator, the pivot device comprising two main outer orifices linked to respective connection openings located in a connection interface and configured to be fixed to a support while being linked to the stator of the hydraulic machine so that the receiving interface and the connection interface cooperate by linking the respective main openings and the respective connection openings, and
- a pilot line linked to a pilot chamber, the pilot chamber having a pilot inlet located in the receiving interface, the pilot line being formed in the pivot device and extending between an outer pilot orifice present in the pivot device and a pilot opening located in the connection interface, the pilot opening being linked to the pilot inlet by the cooperation of the connection interface and the receiving interface,
- wherein the pivot device comprises a pivot casing that includes the main outer orifices, the outer pilot orifice, and a core disposed in the pivot casing, the pivot casing and the core cooperating to define respective linking ducts between the main outer orifices and the connection openings, and
- wherein the pilot line is formed in the wall of the pivot casing and the pilot opening is located in a surface of said pivot casing in the connection interface.
2 more elements
A hydraulic arrangement for a steered wheel of a vehicle, comprising:
- a hydraulic machine comprising a rotor part configured to be connected to the steered wheel, a stator having two main enclosures having respective main openings located in a receiving interface, a set of pistons sliding in cylinders to drive in rotation the rotor part, and a fluid distributor configured to establish selective links between the main enclosures and the cylinders,
- a pivot device which defines a pivot axis of the stator, the pivot device comprising two main outer orifices linked to respective connection openings located in a connection interface and configured to be fixed to a support while being linked to the stator of the hydraulic machine so that the receiving interface and the connection interface cooperate by linking the respective main openings and the respective connection openings, and
- a pilot line linked to a pilot chamber, the pilot chamber having a pilot inlet located in the receiving interface, the pilot line being formed in the pivot device and extending between an outer pilot orifice present in the pivot device and a pilot opening located in the connection interface, the pilot opening being linked to the pilot inlet by the cooperation of the connection interface and the receiving interface,
- wherein the pivot device comprises a pivot casing that includes the main outer orifices, the outer pilot orifice, and a core disposed in the pivot casing, the pivot casing and the core cooperating to define respective linking ducts between the main outer orifices and the connection openings, the core comprising a set of concentric tubes and the linking ducts comprising at least one linking duct formed between the tubes, the pilot line being provided inside an innermost tube of the set of concentric tubes.
1 more element
Dependencies are inferred from the claim text.