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Double acting simplex plunger with bi-directional valves

An axial and pump port technology, applied in the field of double-acting single-piston pumps, can solve the problem of expensive check valves

Inactive Publication Date: 2008-01-09
詹姆斯 E 库克
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Check valves 66 and 67 are quite expensive compared to the unique check valves provided by this application

Method used

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  • Double acting simplex plunger with bi-directional valves
  • Double acting simplex plunger with bi-directional valves
  • Double acting simplex plunger with bi-directional valves

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] In FIG. 1, reference numeral 10 generally designates a double-acting single-piston pump comprising a manifold 12, and first and second integrally combined gasket and cover or body parts, in FIG. 1 Only one of them 18 is shown. Body 18 has two spaced apart and parallel surfaces 18A and 18B serving as motor end face engaging surfaces and pump manifold engaging surfaces, respectively. In the body 18 there is provided a recess 19 for receiving one end of a cylindrical plunger 20, the recess 19 having a circular cross-section and a longitudinal axis lying between and parallel to the aforementioned parallel surfaces 18A and 18B.

[0021] The plunger is capable of reciprocating movement along its longitudinal axis under the action of an eccentric comprising a drive shaft 21 from a motor (not shown) and an eccentric 22 housed in an inner race of a bearing 23 which Located within a recess 20' in the plunger 20, all of which are discussed in detail in the aforementioned patent. ...

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PUM

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Abstract

A bi-directional fluid valve apparatus comprising a valve member adapted to co-act with an annular shoulder at the end of a fluid bore, the valve member having two axial ends. A flat surface on a first end having a diameter greater than that of the shoulder is positioned with the flat surface abutting the axial end surface of the shoulder. At least two axially extending and circumferentially spaced apart ribs are on the second axial end thereof, each of the ribs terminating in an end surface. The ribs are positioned so that the end surfaces are in axial alignment with, and spaced a preselected distance from, the axial end surface of the shoulder. Hollow coil spring means are positioned within the recesses in register with the bores, and having a first end engaging one of the shoulders, and a second end engaging the at least three circumferentially spaced apart ribs and the second axial end of the valve member.

Description

technical field [0001] The invention relates to a double-acting single-piston pump with a two-way valve. Background technique [0002] The present invention provides a unique two-way fluid valve apparatus that has wide application and is especially applicable to a double-acting single-piston pump disclosed in prior U.S. Patent Nos. 5,173,039 and 5,183,396, the entire contents of which are incorporated herein as refer to. A one-way valve 66 is disclosed in Figure 11 of these two patents, while Figure 4 shows one-way valves 66 and 67 which are reversed to provide a two-way valve function. One-way valves 66 and 67 are relatively expensive compared to the unique one-way valves provided by the present application. Contents of the invention [0003] The present invention provides an improved reversible one-way valve for two-way fluid valve apparatus which has the following advantages over the one-way valves 66 and 67 shown in US Patent Nos. 5,173,039 and 5,183,396: The one-wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/00F04B39/10F16K15/00F04B1/02F04B39/12F04B53/10F04B53/16
CPCF04B1/02F04B53/16F04B53/1032Y10T137/7922
Inventor 詹姆斯·E·库克
Owner 詹姆斯 E 库克