CRANKCASE AND INTERNAL COMBUSTION ENGINE WITH SUCH A CRANKCASE

    公开(公告)号:US20240254941A1

    公开(公告)日:2024-08-01

    申请号:US18426910

    申请日:2024-01-30

    Inventor: Marco SLIWA

    CPC classification number: F02F7/0007 F02F7/0021 F02F2200/06

    Abstract: A crankcase for an internal combustion engine, including a cast body made of a cast material, a cylinder bore which is formed into the cast body along a cylinder axis and which is delimited by a cylinder track, and a cylinder run-in surface of the cast body. The cylinder track merges into the cylinder run-in surface. The cylinder track is formed by the cast material in a machined state. The cylinder run-in surface is formed by the cast material in an unmachined state.

    CRANKCASE WITH INNER AND OUTER COOLANT JACKET

    公开(公告)号:US20240271557A1

    公开(公告)日:2024-08-15

    申请号:US18437075

    申请日:2024-02-08

    CPC classification number: F01P3/12 F02F7/0021 F02F11/002

    Abstract: A crankcase of an internal combustion engine including an outer coolant jacket and a drain channel, which leads through an other wall of the crank case from the outside into the outer coolant jacket, further including a closure element which sits with a closure section in the drain channel and closes the drain channel, an outer coolant jacket, and a closure element, which sits with a closure section in the drain channel and closes the drain channel. An inner coolant jacket and a connecting channel, which connects the inner coolant jacket to the outer coolant jacket. The closure element has an extension section which is accommodated in the connecting channel and forms a gap-shaped passage with the latter.

    INTERNAL COMBUSTION ENGINE
    3.
    发明公开

    公开(公告)号:US20240125282A1

    公开(公告)日:2024-04-18

    申请号:US18378771

    申请日:2023-10-11

    CPC classification number: F02F1/36 F02F1/102 F01P2003/024

    Abstract: An internal combustion engine includes a crankcase for rotatably supporting a crankshaft about a crankshaft longitudinal axis. The crankcase comprises a crankcase water jacket, a cylinder head which is connected to the crankcase and comprises a cylinder head water jacket, and a coolant pump for supplying the crankcase water jacket and the cylinder head water jacket with a coolant volume flow. The crankcase water jacket and the cylinder head water jacket are fluidly connected to one another in series. The crankcase water jacket is suppliable with the coolant volume flow by the coolant pump via a crankcase inlet, and the crankcase water jacket is designed such that the coolant volume flow is directed via a crankcase outlet and is transferred in the direction of the cylinder head water jacket. The crankcase inlet and the crankcase outlet are axially spaced apart. The crankcase inlet is arranged on a first longitudinal side of the crankcase.

    CYLINDER CRANKCASE INCLUDING A FOREIGN OBJECT INCLUSION FOR CAST REDUCTION AND FOR IMPROVED CLEANLINESS OF THE COMPONENT

    公开(公告)号:US20220025831A1

    公开(公告)日:2022-01-27

    申请号:US17377411

    申请日:2021-07-16

    Abstract: A method is for generating a cylinder crankcase including a foreign object inclusion for cast reduction and for the improved cleanliness of the generated component. The cast material is in particular removed or pushed from the areas between the tie-rods (2) below the water jacket (1), to avoid dirt input into the component during later engine operation. The areas below the water jacket (1) between the tie-rods (2) are designed as a separate tie-rod core (3), and the bolts (4) used during later installation at the water jacket core (5) are enclosed in the tie-rod core (3), so that the tie-rod core (3) is completely surrounded by cast material in the component following the cast and the bolt (4) has coalesced with the cast, and the tie-rod core (3) remains in the generated component and is located in an encapsulated space generated by the cast material.

Patent Agency Ranking