公开(公告)号：US20220282742A1

公开(公告)日：2022-09-08

申请号：US17189914

申请日：2021-03-02

Applicant: Caterpillar Inc.

Inventor： Kevin L. Martin ,  Paul A. Zwart ,  Michael Charles Marstall ,  Mikhail A. Sorokin ,  Lonnie James Devier

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

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.

公开(公告)号：US20200131968A1

公开(公告)日：2020-04-30

申请号：US16176788

申请日：2018-10-31

Applicant: Caterpillar Inc.

Inventor： Ramakrishna V. Manda ,  Kevin L. Martin ,  Paul A. Zwart ,  Andrew M. Denis

IPC: F01N3/28 ,  F01N3/20 ,  F01N13/08

Abstract: An injection apparatus includes an injection mixing platform located within an exhaust pipe; wherein the injection mixing platform includes two or more mixing blades extending radially from a common central hub, at least one of the mixing blades being coupled to a DEF inlet to receive DEF from an external tank, wherein each of the two or more mixing blades includes at least one nozzle to eject the DEF into an exhaust stream, the two or more mixing blades being statically mounted to an inner surface of the exhaust pipe.

公开(公告)号：US11662031B2

公开(公告)日：2023-05-30

申请号：US17189914

申请日：2021-03-02

Applicant: Caterpillar Inc.

Inventor： Kevin L. Martin ,  Paul A. Zwart ,  Michael Charles Marstall ,  Mikhail A. Sorokin ,  Lonnie James Devier

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

CPC classification number: F16K11/07 ,  B22F10/28 ,  B33Y10/00 ,  B33Y80/00 ,  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.

公开(公告)号：US11788633B1

公开(公告)日：2023-10-17

申请号：US17396162

申请日：2021-08-06

Applicant: Caterpillar Inc.

Inventor： Kevin L. Martin ,  Paul A. Zwart ,  Michael C. Marstall ,  Mikhail A. Sorokin

IPC: F16K11/07 ,  B33Y80/00

CPC classification number: F16K11/0716 ,  B33Y80/00

Abstract: A spool for a spool valve assembly defines a spool longitudinal axis and includes a first land module defining a first land module circumferential surface, a second land module defining a second land module circumferential surface, and a first metering module. The first metering module has a first end cap and a second end cap. The first end cap is coupled to the first land module, and the second end cap is coupled to the second land module, to form the spool. The first metering module may further include at least two pillars extending from the first end cap to the second end cap, wherein the at least two pillars are entirely disposed within a virtual first metering module hollow cylinder area that surrounds a virtual first metering module central core area concentric with the spool longitudinal axis.

公开(公告)号：US20220364490A1

公开(公告)日：2022-11-17

申请号：US17317865

申请日：2021-05-11

Applicant: Caterpillar Inc.

Inventor： Samuel S. Kumar ,  Matthew F. Fahrenkrug ,  Daniel R. Barb ,  Ramakrishna Manda ,  Paul A. Zwart ,  Thierry A. Marchione ,  Kevin L. Martin

IPC: F01N3/20 ,  F01N3/30

Abstract: An injector for a diesel exhaust fluid (DEF) delivery system includes a first conduit extending along a longitudinal direction; a second conduit extending along the longitudinal direction and disposed within the first conduit; a nozzle tip having a side wall and an end wall; and a shell surrounding the first conduit and being spaced apart from the first conduit along a radial direction. The side wall has a thickness extending along the radial direction from an external surface of the nozzle tip to an inner surface of the second conduit. The end wall defines an outlet flow passage therethrough, and the outlet flow passage is in fluid communication with the first conduit and the second conduit via a chamber defined by an internal surface of the nozzle tip.

公开(公告)号：US10774718B2

公开(公告)日：2020-09-15

申请号：US16176788

申请日：2018-10-31

Applicant: Caterpillar Inc.

Inventor： Ramakrishna V. Manda ,  Kevin L. Martin ,  Paul A. Zwart ,  Andrew M. Denis

IPC: F01N3/20 ,  F01N3/28 ,  F01N13/08

Abstract: An injection apparatus includes an injection mixing platform located within an exhaust pipe; wherein the injection mixing platform includes two or more mixing blades extending radially from a common central hub, at least one of the mixing blades being coupled to a DEF inlet to receive DEF from an external tank, wherein each of the two or more mixing blades includes at least one nozzle to eject the DEF into an exhaust stream, the two or more mixing blades being statically mounted to an inner surface of the exhaust pipe.