公开(公告)号：US12228172B2

公开(公告)日：2025-02-18

申请号：US18008329

申请日：2021-05-28

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Pierrick Pavallier ,  Fabrice Prost

IPC: F16C17/24 ,  F16C17/02

Abstract: A guide device includes: a metal component in the form of a bush provided with a friction surface intended to receive a mating part in frictional contact by sliding with oscillation; a wear sensing system of the friction surface having one or more sensors; and a wireless communication system connected to the detection system and configured to transmit information relating to the wear of the friction surface out of the guide device. The sensor or sensors are arranged exclusively on one longitudinal side or on two longitudinal sides of the bush, each longitudinal side being defined over at most two fifths of the length of the annular bush.

公开(公告)号：US12135060B2

公开(公告)日：2024-11-05

申请号：US17611267

申请日：2020-05-15

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Fabrice Prost ,  Pierrick Pavallier

IPC: F16C33/12 ,  F16C33/10

Abstract: A member for guiding an element mobile in oscillation or rotation is presented. The member has a body made of a hardened metallic material, provided with a bore for assembling the mobile element, having cavities that are distributed discontinuously in the bore and capable of acting as grease reserves, and having optional grease supply. In the bore are defined a bearing surface outside of the cavities and the grease supply, and a non-bearing surface in the cavities and the grease supply. The bore includes at least one zone with: cavities having a depth of between 2 and 5 mm, and a quantity of grease in the cavities per bearing surface of between 0.05 and 0.3 g/cm2. A mechanical system having such a member and a method for manufacturing such a member is also contemplated.

公开(公告)号：US11732343B2

公开(公告)日：2023-08-22

申请号：US17252614

申请日：2019-06-17

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Laurent Bombillon ,  Fabrice Prost

IPC: C23C14/02 ,  C23C14/06 ,  C23C28/04 ,  B32B15/04 ,  C23C14/32

CPC classification number: C23C14/027 ,  B32B15/04 ,  C23C14/0611 ,  C23C14/325 ,  C23C28/04 ,  C23C28/046 ,  C23C28/048

Abstract: Disclosed is a part comprising a metal substrate, a non-hydrogenated amorphous ta-C or aC carbon coating that coats the substrate, and an undercoat which is based on chromium (Cr), carbon (C) and silicon (Si) and is disposed between the metal substrate and the amorphous carbon coating and to which the amorphous carbon coating is applied, characterized in that the undercoat included, at its interface with the amorphous carbon coating, a ratio of silicon in atomic percent to chromium in atomic percent (Si/Cr) of 0.3 to 0.60, and a ratio of carbon in atomic percent to silicon in atomic percent (C/Si) of 2.5 to 3.5.

公开(公告)号：US12031578B2

公开(公告)日：2024-07-09

申请号：US17258609

申请日：2019-07-03

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Fabrice Prost ,  Pierrick Pavallier

IPC: F16C33/10 ,  F16C17/02 ,  F16C17/18

CPC classification number: F16C33/102 ,  F16C17/18 ,  F16C33/1095 ,  F16C17/02

Abstract: A hinged component with one degree of freedom includes at least two concentric rings, movable in rotation in relation to one another around a central axis, defining a friction interface therebetween and including: an outer ring having an inner friction surface and an inner ring having an outer friction surface and an inner friction surface intended to receive a movable member guided by the component in rotation, oscillation and/or translation.

公开(公告)号：US12203504B2

公开(公告)日：2025-01-21

申请号：US18765889

申请日：2024-07-08

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Fabrice Prost ,  Pierrick Pavallier

IPC: F16C33/10 ,  F16C17/02 ,  F16C17/18

Abstract: A hinged component with one degree of freedom includes at least two concentric rings, movable in rotation in relation to one another around a central axis, defining a friction interface therebetween and including: an outer ring having an inner friction surface and an inner ring having an outer friction surface and an inner friction surface intended to receive a movable member guided by the component in rotation, oscillation and/or translation.

公开(公告)号：US12098744B2

公开(公告)日：2024-09-24

申请号：US17613257

申请日：2020-05-15

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Fabrice Prost ,  Pierrick Pavallier

IPC: F16C11/04 ,  B32B1/08 ,  B32B15/00 ,  B32B15/01 ,  B32B15/04 ,  B32B15/18 ,  C23C8/00 ,  C23C8/02 ,  C23C8/04 ,  C23C8/06 ,  C23C8/18 ,  C23C8/22 ,  C23C8/26 ,  C23C8/32 ,  C23C8/38 ,  C23C8/50 ,  C23C8/56 ,  C23C8/66 ,  C23C8/70 ,  C23C8/76 ,  C23C8/80 ,  C23C14/06 ,  C23C14/22 ,  C23C14/48 ,  C23C14/58 ,  C23C30/00 ,  F16B1/00 ,  F16C31/02 ,  F16C33/12 ,  F16C33/20 ,  C21D1/06 ,  C21D1/74 ,  C21D9/40

CPC classification number: F16C11/04 ,  B32B1/08 ,  B32B15/00 ,  B32B15/01 ,  B32B15/011 ,  B32B15/04 ,  B32B15/043 ,  B32B15/18 ,  C23C8/00 ,  C23C8/02 ,  C23C8/04 ,  C23C8/06 ,  C23C8/18 ,  C23C8/22 ,  C23C8/26 ,  C23C8/32 ,  C23C8/38 ,  C23C8/50 ,  C23C8/56 ,  C23C8/66 ,  C23C8/70 ,  C23C8/76 ,  C23C8/80 ,  C23C14/06 ,  C23C14/0641 ,  C23C14/0658 ,  C23C14/0664 ,  C23C14/067 ,  C23C14/221 ,  C23C14/48 ,  C23C14/58 ,  C23C14/5813 ,  C23C14/5833 ,  C23C14/584 ,  C23C14/586 ,  C23C30/00 ,  C23C30/005 ,  F16B1/00 ,  F16C31/02 ,  F16C33/12 ,  F16C33/208 ,  C21D1/06 ,  C21D1/74 ,  C21D9/40 ,  C21D2221/00 ,  C21D2261/00 ,  F16C2202/04 ,  F16C2202/06 ,  F16C2202/08 ,  F16C2204/60 ,  F16C2223/10 ,  F16C2223/14 ,  F16C2223/16 ,  F16C2240/60 ,  F16C2310/00 ,  F16C2352/00 ,  Y10T428/12292 ,  Y10T428/12458 ,  Y10T428/12576 ,  Y10T428/12583 ,  Y10T428/12611 ,  Y10T428/12958 ,  Y10T428/12972 ,  Y10T428/12993 ,  Y10T428/13 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/24983 ,  Y10T428/26 ,  Y10T428/263 ,  Y10T428/264 ,  Y10T428/265

Abstract: A guiding member, having a body provided with a bore for mounting a mobile element is presented. The body consists of a metallic material. The bore has a surface layer treated against jamming over a diffusion depth of less than or equal to 0.6 mm. The surface layer has a hardness of greater than or equal to 500 Hv1 over a depth of between 5 and 50 μm.

公开(公告)号：US12012657B2

公开(公告)日：2024-06-18

申请号：US17252615

申请日：2019-06-17

Applicant: HYDROMECANIQUE ET FROTTEMENT

Inventor： Laurent Bombillon ,  Fabrice Prost

IPC: B32B9/00 ,  C23C16/02 ,  C23C16/26 ,  C23C16/32 ,  C23C28/00 ,  C23C28/04 ,  F16J9/26

CPC classification number: C23C28/046 ,  C23C16/0272 ,  C23C16/26 ,  C23C16/32 ,  C23C28/048 ,  C23C28/34 ,  F16J9/26

Abstract: Disclosed is a part including a metal substrate, a non-hydrogenated amorphous ta-C or aC carbon coating that coats the substrate, and an undercoat which is based on chromium (Cr), carbon (C) and silicon (Si) and is disposed between the metal substrate and the amorphous carbon coating and to which the amorphous carbon coating is applied, characterized in that the undercoat included, at its interface with the amorphous carbon coating, a ratio of silicon in atomic percent to chromium in atomic percent (Si/Cr) of 0.35 to 0.60, and a ratio of carbon in atomic percent to silicon in atomic percent (C/Si) of 2.5 to 3.5.