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Pump device, for instance for front and rear wheel driven motorcycle

a technology for rear wheel drive and pump device, which is applied in the direction of pumps, mechanical devices, liquid fuel engines, etc., to achieve the effects of reducing amplitude, reducing amplitude, and convenient construction

Inactive Publication Date: 2009-12-17
OHLINS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a new pump that is small and can be used in motorcycles. The pump uses a special actuating device with a cross section that has at least three corners, which interacts with carrier devices associated with pistons. The pistons move in a normal direction to the rotating shaft. The pump is designed to work with flow pulses or pulses of medium that are close together and have reduced amplitude, which makes it resistant to wear and less damaging to other system components. The pump can be easily constructed and can be located in hitherto unutilized spaces in motorcycles. The technical effects of the invention are reduced size, improved efficiency, and reduced damage to other system components.

Problems solved by technology

In the case of motorcycles, for example, the pump can be arranged in hitherto unutilized spaces, in spite of the fact that these have minimal volumes, due to the greatly reduced size of the pump.

Method used

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  • Pump device, for instance for front and rear wheel driven motorcycle
  • Pump device, for instance for front and rear wheel driven motorcycle
  • Pump device, for instance for front and rear wheel driven motorcycle

Examples

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Embodiment Construction

[0023]FIGS. 1 and 2 schematically show a motorcycle 1. The motorcycle 1 can be of the type that comprises a rear wheel drive combined with a front wheel drive (not specifically shown) specially, cf. the abovementioned PCT-document. The rear wheel is driven in a conventional way by a motor 2 and a chain arrangement 3. The motorcycle's rear wheel is indicated by 4 and the front wheel is indicated by 5. The rear wheel 4 is arranged to drive a hydraulic pump 6 via the chain 3, which hydraulic pump 6 is arranged in a space behind the motor 2 and forward of an attachment point 7 for the rear wheel's pivot arm 8. The space 9 preferably is located on the left side of the motorcycle where the pump has a natural position from a functional point of view due to its small external dimensions. In this space 9, the pump 6 does not obstruct the use of the motorcycle. Other parts of the motorcycle generally comprise well known components and therefore will not be described here in greater detail.

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PUM

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Abstract

A pump arrangement is arranged to be driven by a rotating shaft and comprises a piston arrangement that generates a flow pulse. The piston arrangement has pistons that move axially forward and backward. An actuating device is connected to the rotating shaft and drives the piston arrangement. The actuating device has a cross section of constant width with at least three corners. During rotation caused by the rotating shaft, the actuating device is arranged to interact with carrier devices that are associated with the pistons.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit and priority to and is a U.S. National Phase of PCT International Application Number PCT / SE2006 / 000742, filed on Jun. 19, 2006, designating the United States of America and published in the English language, which claims priority under 35 U.S.C. § 119 to Swedish Application Number 0501415-4, filed on Jun. 20, 2005. The disclosures of the above-referenced applications are hereby expressly incorporated by reference in their entireties.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention generally relates to a pump arrangement for front and rear wheel driven motorcycles that are powered by a high pressure hydraulic flow. More particularly, the present invention relates to a pump arrangement that is driven by a rotating shaft and that comprises a piston arrangement that generates a flow pulse or pulse of medium, which piston arrangement has pistons that move forward and back...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04B53/12F04B1/0413F04B1/053
CPCF04B9/042F04B1/0413F04B1/053F04B27/0414F04B27/053
Inventor GUSTAFSSON, LEIF
Owner OHLINS