公开(公告)号：US20170097098A1

公开(公告)日：2017-04-06

申请号：US14876082

申请日：2015-10-06

Applicant: Caterpillar Inc.

Inventor： Matthew J. BESCHORNER ,  Mikhail A. SOROKIN

IPC: F16K3/02 ,  E02F9/22

CPC classification number: F16K3/0254 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2296 ,  F16K3/0218 ,  F16K3/0227 ,  F16K3/265 ,  F16K3/267 ,  F16K11/22 ,  F16K27/003

Abstract: A spool assembly is disclosed for use in a valve. The spool assembly may have a cylindrical body with a first end, a second end, and a bore passing from the first end through the second end. The spool assembly may also have a first insert with a first land slidably disposed inside the bore at the first end, and a second insert separate from the first insert. The second insert may have a second land slidably disposed inside the bore at the second end.

公开(公告)号：US20230279957A1

公开(公告)日：2023-09-07

申请号：US18313695

申请日：2023-05-08

Applicant: Caterpillar Inc.

Inventor： Kevin L. MARTIN ,  Paul A. ZWART ,  Michael Charles MARSTALL ,  Mikhail A. SOROKIN ,  Lonnie James DEVIER

IPC: F16K11/07 ,  B33Y10/00 ,  B33Y80/00 ,  B22F10/28 ,  F15B11/18 ,  F15B13/08 ,  F16K15/04 ,  F16K17/04 ,  F16K17/08

CPC classification number: F16K11/07 ,  B33Y10/00 ,  B33Y80/00 ,  B22F10/28 ,  F15B11/183 ,  F15B13/0842 ,  F16K15/044 ,  F16K17/0406 ,  F16K17/08

Abstract: A method of manufacturing a hydraulic valve component using additive manufacturing includes laying successive layers to form a flow aperture for a hydraulic valve component, and creating a lattice or mesh structure that at least partially defines the flow aperture of the hydraulic valve component, or a feature that forms an undercut along a direction that is parallel to a flow direction of the flow aperture, or a flow aperture having a size varying along a circumferential direction of the valve component.