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US 10,371,148 B2Granted
Vacuum pump
AssigneeWabco Automotive UK Limited
InventorsDavid Heaps, Simon Warner, John Hegarty
Life of this patent
Estimating the term…
Abstract
An automotive vacuum pump includes a casing defining a cavity, the casing having an inlet and an outlet, wherein the cavity contains a rotor extending through a side of the casing to the exterior thereof and being provided with a coupling arrangement to couple the rotor to a drive member. The vacuum pump is provided with a lubrication conduit for the supply of lubricating fluid to the coupling arrangement from within the vacuum pump.
Claims20
An automotive vacuum pump, the vacuum pump comprising:
- a casing defining a pump cavity, the casing having a lubricating fluid inlet,
- a rotor extending from the pump cavity through a side of the casing to the exterior of the pump cavity,
- a coupling arrangement configured to couple the rotor to a drive member, and
- a lubrication conduit configured to:
- supply lubricating fluid from within the vacuum pump to a contact area between an engagement face of the coupling arrangement and a corresponding engagement face of the rotor so as to lubricate the contact area, and
- supply lubricating fluid to the pump cavity,
- wherein the lubrication conduit includes a first portion that extends through the rotor and the coupling arrangement,
- wherein the lubrication conduit further includes a second portion that extends between the lubricating fluid inlet and a first location, the first location being in fluidic communication with the first portion of the lubrication conduit, and
- wherein the engagement face of the coupling arrangement is configured to transfer a drive force from the drive member to the corresponding engagement face of the rotor.
6 more elements
An automotive vacuum pump, the vacuum pump comprising:
- a casing defining a cavity, the casing having an inlet and an outlet, wherein the cavity contains a rotor extending through a side of the casing to the exterior thereof and being provided with a coupling arrangement to couple the rotor to a drive member,
- wherein the vacuum pump is provided with a lubrication conduit for the supply of lubricating fluid to the coupling arrangement from within the vacuum pump, the lubrication conduit having a portion extending through the rotor,
- wherein a first section of the portion of the lubrication conduit extending through the rotor is aligned parallel with an axis of rotation of the rotor,
- wherein a second section of the portion of the lubrication conduit which extends through the rotor is provided in a direction which is transverse to the axis of rotation of the rotor,
- wherein the rotor is provided with a groove which extends at least partially around the periphery thereof, and
- wherein second section is connected to the groove.
3 more elements
An automotive vacuum pump, the vacuum pump comprising:
- a casing defining a cavity, the casing having an inlet and an outlet, wherein the cavity contains a rotor extending through a side of the casing to the exterior thereof and being provided with a coupling arrangement to couple the rotor to a drive member,
- wherein the vacuum pump is provided with a lubrication conduit configured to supply lubricating fluid from within the vacuum pump to a contact area between an engagement face of the coupling arrangement and a corresponding engagement face of the rotor so as to lubricate the contact area,
- wherein the engagement face of the coupling arrangement is configured to transfer a drive force from the drive member to the corresponding engagement face of the rotor, and
- wherein the coupling arrangement is connected to the rotor by a connecting member which extends though the coupling arrangement and into the rotor.
1 more element
An automotive vacuum pump, the vacuum pump comprising:
- a casing defining a cavity, the casing having an inlet and an outlet, wherein the cavity contains a rotor extending through a side of the casing to the exterior thereof and being provided with a coupling arrangement to couple the rotor to a drive member,
- wherein the vacuum pump is provided with a lubrication conduit for the supply of lubricating fluid to the coupling arrangement from within the vacuum pump, the lubrication conduit having a portion that extends through the rotor and the coupling arrangement,
- wherein the lubrication conduit includes a portion which extends through the casing of the vacuum pump between the inlet and a first location which is in communication with the portion of the lubrication conduit which extends through the rotor and the coupling arrangement, and
- wherein the lubrication conduit is configured to supply lubricating fluid to the coupling arrangement independently to the supply of any lubricating fluid to the pump cavity.
1 more element
Dependencies are inferred from the claim text.