公开(公告)号：US20190226389A1

公开(公告)日：2019-07-25

申请号：US15879647

申请日：2018-01-25

Applicant: Caterpillar Inc.

Inventor： Jeremy Byrd ,  Eric L. Schroeder ,  Liangtao Zhu ,  Arvind Sivasubramanian ,  Ryan T. Sunley ,  Craig P. Hittle ,  Aaron L. Robinson

IPC: F02B37/02 ,  F02B37/007 ,  F02C6/12 ,  F01N13/00 ,  F02D13/02

Abstract: An internal combustion engine having an exhaust log structure onto which a plurality of turbochargers is connected, each turbocharger having a turbine connected to the exhaust log structure and having an inlet fluidly connectable to a respective one of the plurality of outlet ports, an exhaust valve disposed at a turbine outlet such that the flow of exhaust gas out of the turbine is fluidly blocked, and an actuator associated with the exhaust valve and operating to move the exhaust valve from a closed position to an open position and vice versa. An electronic controller provides a command to the actuator to move the exhaust valve between the open and closed positions and is programmed to selectively open two one or more exhaust valves based on an operating condition of the engine.

公开(公告)号：US10934911B2

公开(公告)日：2021-03-02

申请号：US16246962

申请日：2019-01-14

Applicant: Caterpillar Inc.

Inventor： Jeremy Byrd ,  Aaron L. Robinson ,  Craig P. Hittle ,  Keith W. Mellencamp

IPC: F01N3/04 ,  F01P3/14 ,  F01P5/10 ,  F02B37/007 ,  F02B37/02 ,  F02B37/22

Abstract: An internal combustion engine includes a cylinder case forming a plurality of coolant outlets, and an exhaust log structure disposed on the cylinder case and including inner and outer walls defining a coolant jacket therebetween, a plurality of coolant inlets extending through the outer wall and being fluidly connected to the coolant jacket, and a plurality of transfer housings. Each transfer housing includes an inner housing wall forming a gas passage, an outer housing wall disposed at an offset distance around the inner housing wall such that a cooling passage is defined in a space between the inner and outer housing walls, and a coolant inlet and a coolant outlet in fluid communication with the cooling passage. The plurality of coolant inlets is fluidly connected to the plurality of coolant outlets via the cooling passages in the plurality of transfer housings.

公开(公告)号：US10746089B2

公开(公告)日：2020-08-18

申请号：US15879647

申请日：2018-01-25

Applicant: Caterpillar Inc.

Inventor： Jeremy Byrd ,  Eric L. Schroeder ,  Liangtao Zhu ,  Arvind Sivasubramanian ,  Ryan T. Sunley ,  Craig P. Hittle ,  Aaron L. Robinson

IPC: F02B37/02 ,  F02B37/007 ,  F02C6/12 ,  F01N13/00 ,  F02D13/02 ,  F01N13/18 ,  F01D25/12 ,  F02D41/00 ,  F01D25/14 ,  F02B37/22 ,  F02B37/00 ,  F02D9/04 ,  F02B75/22 ,  F02F1/42 ,  F02B75/18 ,  F02M35/116 ,  F01N3/04 ,  F02D41/22 ,  F02B33/40 ,  F02M35/10 ,  F02B39/00

Abstract: An internal combustion engine having an exhaust log structure onto which a plurality of turbochargers is connected, each turbocharger having a turbine connected to the exhaust log structure and having an inlet fluidly connectable to a respective one of the plurality of outlet ports, an exhaust valve disposed at a turbine outlet such that the flow of exhaust gas out of the turbine is fluidly blocked, and an actuator associated with the exhaust valve and operating to move the exhaust valve from a closed position to an open position and vice versa. An electronic controller provides a command to the actuator to move the exhaust valve between the open and closed positions and is programmed to selectively open two one or more exhaust valves based on an operating condition of the engine.

公开(公告)号：US10975823B2

公开(公告)日：2021-04-13

申请号：US16542905

申请日：2019-08-16

Applicant: Caterpillar Inc.

Inventor： Aaron L. Robinson ,  Jason S. Mershon

IPC: F01N13/10 ,  F02M35/10 ,  F02M69/46 ,  F16L23/18 ,  F02M35/104 ,  F16L23/024

Abstract: A fastener-component sub-assembly has a body, a retaining member, and a fastener. The component has an interior surface, an exterior surface, and one or more openings extending from the interior surface to the exterior surface. A first opening of the one or more openings has an inlet and outlet, with an axis extending therethrough. The retaining member is disposed in the first opening of the one or more openings between the inlet and the outlet. The fastener is disposed in the first opening, and the fastener includes a narrow portion and a wide portion. The width of the narrow portion is less than the width of the wide portion. The fastener is movable in the first opening between an extended position and a recessed position. The narrow portion of the fastener is sized such the fastener is able to freely move along the axis and through the retaining member. The wide portion of the fastener is sized such that the fastener is prevented from moving toward the inlet of the first opening when the wide portion engages the retaining member.

公开(公告)号：US20210047991A1

公开(公告)日：2021-02-18

申请号：US16542905

申请日：2019-08-16

Applicant: Caterpillar Inc.

Inventor： Aaron L. Robinson ,  Jason S. Mershon

IPC: F02M69/46 ,  F16L23/18 ,  F16L23/024 ,  F02M35/104 ,  F02M35/10

Abstract: A fastener-component sub-assembly has a body, a retaining member, and a fastener. The component has an interior surface, an exterior surface, and one or more openings extending from the interior surface to the exterior surface. A first opening of the one or more openings has an inlet and outlet, with an axis extending therethrough. The retaining member is disposed in the first opening of the one or more openings between the inlet and the outlet. The fastener is disposed in the first opening, and the fastener includes a narrow portion and a wide portion. The width of the narrow portion is less than the width of the wide portion. The fastener is movable in the first opening between an extended position and a recessed position. The narrow portion of the fastener is sized such the fastener is able to freely move along the axis and through the retaining member. The wide portion of the fastener is sized such that the fastener is prevented from moving toward the inlet of the first opening when the wide portion engages the retaining member.

公开(公告)号：US20200224568A1

公开(公告)日：2020-07-16

申请号：US16246962

申请日：2019-01-14

Applicant: Caterpillar Inc.

Inventor： Jeremy Byrd ,  Aaron L. Robinson ,  Craig P. Hittle ,  Keith W. Mellencamp

IPC: F01N3/04 ,  F01P3/14 ,  F01P5/10 ,  F02B37/22 ,  F02B37/02 ,  F02B37/007

Abstract: An internal combustion engine includes a cylinder case forming a plurality of coolant outlets, and an exhaust log structure disposed on the cylinder case and including inner and outer walls defining a coolant jacket therebetween, a plurality of coolant inlets extending through the outer wall and being fluidly connected to the coolant jacket, and a plurality of transfer housings. Each transfer housing includes an inner housing wall forming a gas passage, an outer housing wall disposed at an offset distance around the inner housing wall such that a cooling passage is defined in a space between the inner and outer housing walls, and a coolant inlet and a coolant outlet in fluid communication with the cooling passage. The plurality of coolant inlets is fluidly connected to the plurality of coolant outlets via the cooling passages in the plurality of transfer housings.