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US 11,781,613 B2Granted
Bush-type hydraulic mount
AssigneesHyundai Motor Company, Kia Corporation
InventorSeung Won Kim
Life of this patent
Estimating the term…
Abstract
A bush-type hydraulic mount used for mounting a motor module in an electric vehicle is provided. The bush-type hydraulic mount includes an inner pipe, a middle pipe disposed coaxially with the inner pipe, and a main rubber that is vulcanized between the inner pipe and the middle pipe. An outer pipe surrounds the middle pipe. The main rubber includes a front fluid chamber that is recessed from a surface of the main rubber, a rear fluid chamber adjacent to the front fluid chamber and recessed from the surface of the main rubber, and a bridge that separates the front fluid chamber and the rear fluid chamber to allow fluid to flow between the front fluid chamber and the rear fluid chamber and being deformable by external force.
Claims10
A bush-type hydraulic mount, comprising:
- an inner pipe;
- a middle pipe disposed coaxially with the inner pipe;
- a main rubber vulcanized between the inner pipe and the middle pipe;
- and
- an outer pipe surrounding the middle pipe,
- wherein the main rubber includes, at a first side of the mount:
- a first front fluid chamber recessed from a surface of the main rubber;
- a first rear fluid chamber being adjacent to the first front fluid chamber and recessed from the surface of the main rubber;
- a first bridge separating the first front fluid chamber and the first rear fluid chamber allowing fluid to flow between the front fluid chamber and the rear fluid chamber and being deformable by an external force;
- a first channel recessed from the surface of the main rubber and connecting the first front fluid chamber and the first rear fluid chamber to each other;
- wherein the main rubber includes, at a second side of the mount:
- a second front fluid chamber recessed from the surface of the main rubber;
- a second rear fluid chamber being adjacent to the second front fluid chamber and recessed from the surface of the main rubber;
- a second bridge separating the second front fluid chamber and the second rear fluid chamber allowing fluid to flow between the second front fluid chamber and the second rear fluid chamber and being deformable by external force;
- and
- a second channel recessed from the surface of the main rubber and connecting the second front fluid chamber and the second rear fluid chamber to each other;
- wherein the second front fluid chamber, the second rear fluid chamber, the second bridge, and the second channel are separably and symmetrically disposed up and down from the first front fluid chamber, the first rear fluid chamber, the first bridge, and the first channel with respect to an axial direction of the middle pipe;
- wherein each of the first bridge and the second bridge extends from the main rubber as a single body, respectively, and each of the first bridge and the second bridge has a front portion being in contact with the respective front fluid chamber and a rear portion extending from the front portion and being in contact with the respective rear fluid chamber, wherein the rear portion is longer than the front portion and an end of the rear portion forms a contact portion being in contact with the outer pipe and being movable with respect to the outer pipe by external force;
- and
- wherein, when the external force is applied, each bridge is configured to slide on the outer pipe such that a volume of the respective front fluid chamber and a volume of the respective rear fluid chamber changes.
17 more elements
A method of assembling a bush-type hydraulic mount, comprising:
- disposing a middle pipe having an opening axially with an inner pipe that is disposed radially inside;
- vulcanizing a main rubber between the inner pipe and the middle pipe;
- and
- fitting an outer pipe from a second side to surround an outer side of the middle pipe;
- wherein the main rubber includes, at a first side of the mount:
- a first front fluid chamber recessed from a surface of the main rubber;
- a first rear fluid chamber being adjacent to the first front fluid chamber and recessed from the surface of the main rubber;
- a first bridge separating the first front fluid chamber and the first rear fluid chamber allowing fluid to flow between the front fluid chamber and the rear fluid chamber and being deformable by an external force;
- a first channel recessed from the surface of the main rubber and connecting the first front fluid chamber and the first rear fluid chamber to each other;
- wherein the main rubber includes, at a second side of the mount:
- a second front fluid chamber recessed from the surface of the main rubber;
- a second rear fluid chamber being adjacent to the second front fluid chamber and recessed from the surface of the main rubber;
- a second bridge separating the second front fluid chamber and the second rear fluid chamber allowing fluid to flow between the second front fluid chamber and the second rear fluid chamber and being deformable by external force;
- and
- a second channel recessed from the surface of the main rubber and connecting the second front fluid chamber and the second rear fluid chamber to each other;
- wherein the second front fluid chamber, the second rear fluid chamber, the second bridge, and the second channel are separably and symmetrically disposed up and down from the first front fluid chamber, the first rear fluid chamber, the first bridge, and the first channel with respect to an axial direction of the middle pipe;
- wherein the first side that is a side of each of the first and second bridges is longer than the second side that is an opposite side of the first side;
- wherein each of the first bridge and the second bridge extends from the main rubber as a single body, respectively, and each of the first bridge and the second bridge has a front portion being in contact with the respective front fluid chamber and a rear portion extending from the front portion and being in contact with the respective rear fluid chamber, wherein the rear portion is longer than the front portion and an end of the rear portion forms a contact portion being in contract with the outer pipe and being movable with respect to the outer pipe by external force;
- and
- wherein, when the external force is applied, each of the first and second bridges is configured to slide on the outer pipe such that a volume of the respective front fluid chamber and a volume of the respective rear fluid chamber changes.
17 more elements
Dependencies are inferred from the claim text.