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Power steering pump and water pump assembly

a technology of power steering pump and water pump, which is applied in the direction of machines/engines, liquid fuel engines, transportation and packaging, etc., can solve the problems of increasing labor and time required to replace a defective pump, and the pump must be separated, so as to achieve convenient separation and less deflection

Inactive Publication Date: 2013-11-28
SKN SINTER METALS LLC (US)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is a power steering pump and water pump assembly that can be easily separated by removing a few fasteners. The power steering pump and water pump have a male / female relationship that allows for easy separation without having to disassemble several components. The water pump also includes a bearing to support and cantilever the water pump shaft, reducing deflection on the inner end of the shaft where the impeller is mounted. These technical features improve the efficiency and performance of the assembly.

Problems solved by technology

When a leak or other issue develops in either the power steering pump or the water pump that requires the pump to be replaced, the pumps must be separated before the defective pump may be replaced.
Separating the two pumps, however, may involve removing several components of the water pump before being able to separate the water pump from the power steering pump.
However, if the power steering pump is the pump being replaced, the operator must still reassemble the previously mentioned components of the water pump when replacing the assembly.
These steps increase the labor and time required to replace a defective pump from the assembly of the water pump and power steering pump.

Method used

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  • Power steering pump and water pump assembly
  • Power steering pump and water pump assembly
  • Power steering pump and water pump assembly

Examples

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Embodiment Construction

[0020]Referring to FIGS. 1-4, a power steering pump and water pump assembly 10 is shown. The assembly 10 includes a power steering pump 12 and a water pump 14. The power steering pump 12 includes a housing 16 and the water pump 14 has a housing 18 as well. The power steering pump 12 housing 16 is assembled to the water pump 14 housing 18 through fasteners 19 (only one shown in FIG. 1 for clarity). As shown in FIG. 2, the power steering pump 12 includes a rotatable shaft 13. The rotatable shaft 13 is driven by an engine (not shown) to pressurize and distribute power steering fluid as known to one skilled in the art. The power steering pump 12 shaft 13 drives the water pump 14.

[0021]As shown in FIG. 2, the water pump 14 housing 18 is constructed of a pair of mating housing parts 20, 22. The housing parts 20, 22 are fastened together with a series of fasteners 24. A gasket 26 is placed between the two mating housing parts 20, 22 to seal the connection of the two housing parts 20, 22 to...

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Abstract

A power steering pump and water pump assembly is disclosed. The assembly includes a power steering pump with a rotating shaft and a water pump. The water pump has a housing and a rotatable shaft for driving an impeller, which is mounted on an inner end of the shaft. An outer end of the water pump shaft engages the shaft of the power steering pump, and the power steering pump shaft drives the water pump shaft. The water pump may include a seal and a bearing having an inner race and outer race for supporting an outer end of the water pump shaft and cantilevering the shaft to support and journal the impeller. The shaft of the power steering pump may engage the shaft of the water pump through engagement of male and female torque transmitting profiles that axially slide together.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Patent Application No. 61 / 426,335 filed Dec. 22, 2010, the disclosure of which is hereby incorporated by reference in its entirety.STATEMENT OF FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not applicable.[0003]1. Field of the Invention[0004]The present invention relates to power steering pumps and water pumps used in automobiles. More specifically, the invention relates to a power steering pump and water pump assembly.[0005]2. Background Prior Art[0006]In-line water pump and power steering pump assemblies are common in current automobile design and may be used in other applications as well. These assemblies may have the shaft of the power steering pump drive the shaft for the water pump. For example, one such design may be seen in U.S. Pat. No. 6,852,193.[0007]When a leak or other issue develops in either the power steering pump or the water pump that requires the pump to be repl...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04D29/044
CPCF04D29/044B62D5/062F01C21/007F04C2/00F04C11/005F04C2230/60F04C2230/70F04C2240/30F04C2240/51F04C2240/60F04D13/12Y10T29/49236
Inventor COLOMBO, GUSTAVO O.COSTA, OSVALDO P.
Owner SKN SINTER METALS LLC (US)
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