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Hydraulic pump

A technology of hydraulic pump and atmospheric pressure, applied in the field of hydraulic pump

Inactive Publication Date: 2009-07-08
吉安·卡洛·弗龙佐尼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This function is usually accomplished by including a bleed valve in the circuit, which tends to have a negative effect on the weight of the equipment and the complexity of the circuit construction

Method used

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  • Hydraulic pump
  • Hydraulic pump
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] figure 1 An embodiment of the pump according to the present invention is shown; the number 1 indicates the body of the pump in which two cylindrical chambers 101 are formed. Each cylindrical chamber 101 has an inlet hole 111 communicating with the passage 151 through a valve 121 including a valve seat 141 and a spherical plug 131. The cylindrical chamber 101 also has a delivery passage 161 communicating with a delivery passage 301, which will be explained more fully below. The rod 102 of the piston 2 exists in each cylindrical chamber 101, and the rod 102 slides through reciprocating motion. A mushroom-shaped head 202 is provided relative to the end of the rod inserted into the end of the cavity 101. The head 202 contacts the surface of the bearing 303 which is keyed to the inclined shaft 123 protruding from the plate 103 connected to the drive shaft 3. The drive shaft 3 is installed in the cavity 104 of the cover 4 of the pump through a thrust bearing 203.

[0012] The h...

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PUM

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Abstract

Axial piston hydraulic pump, comprising at least one piston (2), coupled by suitable transmission means (103, 113) to drive means (3) and slidable with a reciprocating motion inside a cylinder (101), the said cylinder (101) communicating with a fluid intake passage (151) and a fluid delivery passage (161, 301), one-way means (121, 501) of controlling the flow of the fluid being provided in both passages; the said delivery passage (301) communicates, downstream of the said one-way flow control means (501), with a constricted flow discharge member (401, 411, 431, 441).

Description

Technical field [0001] The present invention relates to a hydraulic pump, and more particularly to a hydraulic piston pump. Background technique [0002] The characteristics of the pump are essentially determined by the intended use, and therefore there are many different implementations of these devices designed to meet different needs. In particular, the research leading to the present invention has been conducted in the field of hydraulic pumps, which are designed to deliver fluids at a high pressure of hundreds of atmospheres and are manufactured in a small size so that the hydraulic pumps can be used in portable power control器中. [0003] There are a number of problems related to the construction of this type of pump. In particular, it is important for the structure of the device to be extremely compact and lightweight to avoid negative effects on the volume and weight of the controller to be used. Obviously, the selected construction type must not have a negative effect on e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/16F04B1/14F04B53/10
CPCF04B53/10F04B53/16F04B1/14
Inventor 吉安·卡洛·弗龙佐尼
Owner 吉安·卡洛·弗龙佐尼