公开(公告)号：US11988119B1

公开(公告)日：2024-05-21

申请号：US18200328

申请日：2023-05-22

Applicant: Caterpillar Inc.

Inventor： Lucas K. Smith ,  Rodney Allen Lawrence

IPC: F01M13/02 ,  F01M13/00

CPC classification number: F01M13/028 ,  F01M2013/0038

Abstract: Apparatuses, systems and methods are disclosed including an internal combustion engine. The internal combustion engine can include an engine block defining a combustion chamber and a crankcase in fluid communication with the combustion chamber. The internal combustion engine can include an auxiliary device in fluid communication with the crankcase of the engine block. The auxiliary device is driven by the internal combustion engine to supply air to the crankcase of the engine block at a desired pressure range and a desired mass flow rate range to ventilate the crankcase.

公开(公告)号：US12071871B1

公开(公告)日：2024-08-27

申请号：US18208525

申请日：2023-06-12

Applicant: Caterpillar Inc.

Inventor： Lucas K. Smith ,  Rodney Allen Lawrence ,  Eric W. Ferguson ,  Ryan R. Stoneman

IPC: F01M1/04 ,  B01D46/00 ,  B01D46/24 ,  B01D46/88 ,  F01M13/00

CPC classification number: F01M13/0033 ,  B01D46/0004 ,  B01D46/0005 ,  B01D46/0043 ,  B01D46/0046 ,  B01D46/0087 ,  B01D46/2403 ,  B01D46/88 ,  F01M13/0011 ,  B01D2265/024 ,  B01D2271/02 ,  B01D2273/30 ,  B01D2279/35 ,  F01M2013/0044

Abstract: Apparatuses, systems and methods are disclosed including apparatus for a ventilation system for supplying air to a crankcase of an internal combustion engine. The apparatus can optionally include a housing, an air filter, a lid and a pressure relief valve. The housing can form a cavity and having an inlet and an outlet therein. The inlet communicates with the cavity and is offset from a centerline axis of the housing. The air filter can be received by the cavity. An outer circumference of the air filter can be oriented at an angle that is substantially tangent to the inlet. The lid can be attachable to and removable from the housing for selectively accessing the air filter. The pressure relief valve coupled to the housing and in fluid communication with the cavity.

公开(公告)号：US20250163836A1

公开(公告)日：2025-05-22

申请号：US18517763

申请日：2023-11-22

Applicant: Caterpillar Inc.

Inventor： Lucas K. Smith ,  Rodney Allen Lawrence ,  Joseph G. Chambers ,  Jarrett T. Corcoran ,  Brandyn A. Stack

IPC: F01M13/04 ,  F01N3/02 ,  F02B37/00 ,  F02M25/06 ,  F02M31/04 ,  F02M31/20

Abstract: Apparatuses, systems and methods are disclosed including internal combustion engine optionally including: a crankcase having a blow-by gas passing therethrough; a source of a boost air; a jacket containing a water; an oil separating apparatus in fluid communication with the boost air and the blow-by gas and having a coalescing filter to separate oil from the blow-by gas; and a heat exchanger in fluid communication with the boost air, wherein the heat exchanger is in fluid communication with the jacket to receive the water, wherein the water is passed in a heat transfer relationship with the boost air in the heat exchanger to achieve a desired temperature range for the boost air passing to the oil separating apparatus.