公开(公告)号：US20230175496A1

公开(公告)日：2023-06-08

申请号：US17927444

申请日：2021-06-08

Applicant: POCLAIN HYDRAULICS INDUSTRIE

Inventor： Julien ENGRAND ,  Gilles GRILLON ,  Stéphane, Bernard QUERTELET ,  Jérémy Gérard RESPECTE ,  Philippe LUCIENNE ,  Patrick JALABERT ,  Adam FREY ,  Scott GLODOWSKY

IPC: F04B1/047 ,  F04B1/1071 ,  F03C1/047 ,  F16C33/04

CPC classification number: F04B1/047 ,  F04B1/1071 ,  F03C1/047 ,  F16C33/04

Abstract: The rotating hydraulic machine (102) comprises: —a housing (10), —a shaft (20) movably mounted relative to the housing about an axis, —an apron (24) rigidly connected to the shaft and extending around at least a portion of the housing, —a cam (12) rigidly connected to either the housing or the shaft, —a cylinder block (42) rotationally connected to the other of either the housing or the shaft, the cylinder block comprising pistons capable of engaging with the cam to produce a relative rotation between the shaft and the housing, —first and second guide bearings (28) each bearing directly on the housing and the apron, and —at least a third guide bearing (37) bearing directly on the housing and the cylinder block.

公开(公告)号：US20180087486A1

公开(公告)日：2018-03-29

申请号：US15712219

申请日：2017-09-22

Applicant: POCLAIN HYDRAULICS INDUSTRIE

Inventor： Julien ENGRAND ,  Stéphane VIDAL ,  Gilles GRILLON ,  Bertrand BONNOMET

IPC: F03C1/047 ,  F16D13/52 ,  F16D65/18 ,  F03C1/04

CPC classification number: F03C1/0472 ,  B60K7/0015 ,  B60K2007/0092 ,  B60T1/065 ,  B60T13/22 ,  F03C1/0403 ,  F03C1/0447 ,  F03C1/047 ,  F04B1/0404 ,  F04B1/047 ,  F04B1/06 ,  F04B49/02 ,  F16D13/52 ,  F16D55/38 ,  F16D55/40 ,  F16D65/186 ,  F16D2055/0058 ,  F16D2121/12

Abstract: A hydraulic machine (1) comprising first and second brake elements (92, 93), a spring washer (65) tending to urge the first and second brake elements (92, 93) in a braking direction, and a brake release piston (61) configured to act on the spring washer (65) in a direction opposing the braking direction, the hydraulic machine being characterized in that the brake release piston (61) comprises a primary brake release piston (61a) associated with a primary brake release chamber (62a), and a secondary brake release piston (61b) associated with a secondary brake release chamber (62b), said primary and secondary chambers (62a, 62b) extending radially around the shaft (2) in such a manner that projections of the primary brake release chamber (62a) and of the secondary brake release chamber (62b) onto a plane perpendicular to a longitudinal axis (X-X) defined by the axis of rotation of the hydraulic machine (1) are superposed, at least in part.

公开(公告)号：US20230147694A1

公开(公告)日：2023-05-11

申请号：US17911849

申请日：2021-03-24

Applicant: POCLAIN HYDRAULICS INDUSTRIE

Inventor： Gilles GRILLON ,  Julien ENGRAND ,  Jérémy Gérard RESPECTE ,  Dominique COSTAZ ,  Loïc BONNARD

IPC: F16D55/40 ,  B60T1/06 ,  B60T13/22

CPC classification number: F16D55/40 ,  B60T1/065 ,  B60T13/22

Abstract: The hydraulic machine comprises: —a fixed part, —a part mounted so as to rotate about an axis (O-O) with respect to the fixed part, —a stack (50) of discs (53, 54) forming a brake or clutch, the discs being able to be in abutment against one another by way of friction surfaces (88) having a mean friction radius (Rf) with respect to the axis, —a push rod (80) that is able to push the discs into abutment against one another, in a direction parallel to the axis, over a thrust surface (4), the thrust surface having a mean thrust radius (Rp) with respect to the axis which extends to within or beyond the mean friction radius (Rf). The push rod (80) has a radial annular notch (90) indenting the push rod from an opposite side of the push rod from the axis (O-O) when the mean thrust radius (Rp) extends beyond the mean friction radius (Rf), and otherwise from the side of the push rod closest to the axis.

公开(公告)号：US20180017117A1

公开(公告)日：2018-01-18

申请号：US15648091

申请日：2017-07-12

Applicant: POCLAIN HYDRAULICS INDUSTRIE

Inventor： Julien ENGRAND ,  Jean-Philippe RAISIN ,  Stéphane VIDAL ,  Aurélien ULMER ,  Dominique COSTAZ

IPC: F16D65/853 ,  F16D65/12 ,  F16D55/40 ,  F16D65/02 ,  F16D65/78

CPC classification number: F16D65/853 ,  F03C1/00 ,  F03C1/047 ,  F04B1/047 ,  F04B53/08 ,  F16D55/40 ,  F16D65/127 ,  F16D65/128 ,  F16D2065/1332 ,  F16D2065/783 ,  F16D2065/789

Abstract: A hydraulic apparatus comprising a casing (1) having arranged therein a hydraulic machine (2), a shaft (4) mounted to rotate relative to the casing (1) by means of a bearing (5), a braking system (3) having a plurality of brake disks (31, 34) configured to prevent the shaft (4) rotating relative to the casing (1) in selective manner, and a control system (6, 7) for controlling said braking disks (31, 34), the hydraulic system including an irrigation system adapted to cool said brake disks (31, 34) by means of a fluid, the irrigation system including a fluid inlet (81) and a fluid outlet (82), the hydraulic system being characterized in that the fluid inlet and outlet (81, 82) of the irrigation system define a fluid flow within the casing in which the braking system (3) is downstream from the hydraulic machine (2).