ES2382273B1 - CONVERTER / PRESSURE MULTIPLIER WITHOUT FLUID MIX - Google Patents

Abstract

Pressure converter / multiplier without fluid mixing, which presents compact structuring and modular configuration consisting of: #a) two similar modules (1), (2), arranged in a specular manner and connected by a single axis (4), of double piston, in which modules (1), (2) are used different hydraulic fluids (F1), (F2) and independently, which allow the control of the pressure and flow in the chambers (C1), (C2 ) of said modules (1), (2); # b) an intermediate module (3) that joins the two modules (1), (2) with each other and disposes the said single axis (4) of double piston; and # c) means (5) for anchoring the assembly. # The aforementioned intermediate module (3) is hollow and inside it there is a single shaft (4) with a double piston.

Description

Pressure converter / multiplier without fluid mixing.

The object of the present invention is a pressure converter / multiplier for use in situations where two different hydraulic fluids are operated and their mixing is not permissible. The purpose is to achieve pressure and flow with a special fluid that does not have hydraulic installation.

The converter / multiplier, object of the invention is of compact structure and allows generating a pressure in one of the chambers depending on the pressure applied in the other. The objective is to be able to generate pressures with any fluid starting from an installation's own. In addition to the pressure, the output flow can also be controlled. It is characterized in that it has compact structuring and modular configuration consisting of:

a) two similar modules arranged in a specular manner and connected by a single, double-piston shaft, in which modules two separate hydraulic fluids are used and independently, which allow the control of the pressure and flow in said chambers;

b) an intermediate module that joins the two modules together and has the aforementioned single double piston shaft;

c) means for anchoring the assembly to ground.

The priority application of this converter / multiplier is found in the duration tests of hydraulic actuators within the aeronautical sector. In this sector a hydraulic oil is used which, due to its different compressibility characteristics, viscosity, etc. It is considered very stable for use. It is also a very corrosive fluid that requires special instructions for use. The tests / tests that are applied on aeronautical components that use this fluid are carried out in facilities that handle a different, more conventional, cheap and less corrosive hydraulic fluid. An installation for testing / testing with an exclusive circuit for highly corrosive hydraulic oil would be very expensive, both in the development and construction and maintenance phases. It is also very important to ensure that these two fluids do not mix to avoid contamination of their respective hydraulic circuits.

The converter / multiplier allows, in an easy and cheap way, to ensure that the two fluids do not mix as it prevents physical contact between them.

The advantages of this new converter / multiplier are evident:

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It allows the control of the Pressure or Flow in a hydraulic line.

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It ensures that there is no physical contact between two fl uids, which results in their non-contamination.

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It is very manageable and simple to assemble.

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It allows identification in case of leakage of the corresponding fluid.

To better understand the object of the present invention, a preferred form of practical embodiment is shown in the drawings, susceptible to accessory changes that do not detract from its foundation. Figure 1 represents a schematic overview in perspective of a pressure converter / multiplier without fluid mixing, object of the invention. Figure 2 represents a schematic longitudinal section of the pressure converter / multiplier without fluid mixing, corresponding to the previous figure. They have indicated the following references and particularities: 1, 2, 3.-Modules. 4.-Single axle with double piston. 5.-Means of anchorage. F1, F2.-Independent fluids. C1.-Module chamber (1). C2.-Module chamber (2).

An example of practical, non-limiting embodiment of the present invention is described below.

The elements of which this device consists are:

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The module (1) with shut-off valve, can be proportional to generate different pressure or flow states.

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The module (2) arranged specularly with respect to the module (1).

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The module (3) with fluid drainage system and ground anchor (5).

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The single axle (4) is double piston and guarantees their alignment.

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The corresponding gaskets, necessary to prevent fluid leaks between the elements of the assembly, complete the structuring of the pressure converter / multiplier without mixing fluids, object of the invention.

The fluid (F1) base of the hydraulic system is introduced through the inlet valve on one of the two sides of the converter / multiplier. Said fl uid (F1) is introduced into the chamber (C1) of the module (1) at a certain pressure and at a certain flow rate that is transmitted through the shaft (4) with two pistons to the chamber (C2) of the module (2) arranged in a specular way.

This axis (4) is the same for both chambers (C1), (C2) or two axes that are connected in such a way that it is possible to transmit the pressure of one chamber (C1) to the other (C2). A third hollow module (3) serves to join the two previous modules (1), (2) making the assembly more compact. This module (3) is also equipped with a drainage system to collect possible leaks in the chambers (C1), (C2) of the modules (1) and (2).

The arrangement of the modules (1), (2), (3) makes the converter self-supporting and an anchor is not necessary

(5) complicated set to support the load generated by the movement of the shaft. This anchorage (5) is made by legs placed in the modules (1) and (2) and only serves to fix the assembly to the ground.

In the case of being used as a converter, the modules (1) and (2) will have the cameras of the same section while if it is used as a multiplier the module chamber (2) must be of a smaller diameter, and with a relation of areas inversely proportional to the ratio of pressures to be achieved.

Claims (3)

1. Pressure converter / multiplier without fluid mixing, characterized in that it has compact structuring and modular configuration consisting of: a) two similar modules (1), (2), arranged specularly and joined by a single shaft (4), double piston, in which modules (1), (2) two different hydraulic fluids (F1) are used ), (F2) and independently, which allow the pressure and flow control in the chambers (C1), (C2) of said modules (1), (2); b) an intermediate module (3) that joins the two modules (1), (2) with each other and disposes the said single axle (4) of double piston; c) means (5) for anchoring the assembly. 2. Pressure converter / multiplier without mixing fluids, according to claim 1, characterized in that said intermediate module (3) is hollow and inside it there is a single shaft (4) with a double piston. SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 200800707 SPAIN Date of submission of the application: 11.03.2008 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE RELEVANT DOCUMENTS

 Category

 @ Documents cited  Claims Affected

X

ES 2007830 A6 (PEDROS PASTO JOSE MARIA) 07/01/1989, column 3, lines 3-18; Figure 1, 1-2

 X

US 2003021700 A1 (SERAFIN MARK ET AL.) 01/30/2003, figure 1, paragraphs [0023-0025]; 1-2

X

GB 1599411 A (HARBIDGE J) 09/30/1981, page 1, lines 28-64; Figure 1, 1-2

X

MX PA01010713 A (FOSTER WHEELER CORP) 03/19/2004, page 30, lines 5-8; figure 7A 1-2

X

US 4178240 A (PINKERTON HARRY E) 12/11/1979, column 2, lines 32-36; Figure 1, 1-2

  Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

  This report has been produced � for all claims � for claims no:

 Date of realization of the report 03.02.2011

 Examiner F. Jara Solera  Page 1/4

REPORT OF THE STATE OF THE TECHNIQUE Application number: 200800707 CLASSIFICATION OBJECT OF THE APPLICATION F15B3 / 00 (2006.01) F04B1 / 12 (2006.01) F04B51 / 00 (2006.01) Minimum documentation sought (classification system followed by classification symbols) F15B, F04B Electronic databases consulted during the search (name of the database and, if possible, terms of search used) INVENTIONS, EPODOC State of the Art Report Page 2/4  WRITTEN OPINION Application number: 200800707 Date of Completion of Written Opinion: 03.02.2011 Statement

Novelty (Art. 1 LP 11/198)

Claims Claims 1-2 IF NOT

Inventive activity (Art. 8.1 LP11 / 198)

Claims Claims 1-2 IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).  Basis of Opinion.- This opinion has been made on the basis of the patent application as published. State of the Art Report Page 3/4  WRITTEN OPINION Application number: 200800707 1. Documents considered.- The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Document

Publication or Identification Number Publication Date

D01

ES 2007830 A6 (PEDROS PASTO JOSE MARIA) 01.07.1989

D02

US 2003021700 A1 (SERAFIN MARK et al.) 01/30/2003

D03

GB 1599411 A (HARBIDGE J) 30.09.1981

D04

MX PA01010713 A (FOSTER WHEELER CORP) 03/19/2004

D05

US 4178240 A (PINKERTON HARRY E) 11.12.1979

2. Statement motivated according to articles 29. and 29.7 of the Regulations for the execution of Law 11/198, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement In document D01 a pressure converter / multiplier without fluid mixing is described, with a compact structure, consisting of (the references are those of D01) two similar modules (11, 5) (and in the embodiment described in D01 other modules (10, 4) equal and arranged symmetrically opposite to the first two symmetric modules), arranged in a specular manner and joined by a single, double-piston shaft, in which modules two different hydraulic fluids are used (in (5) a hydraulic fluid and (11) water from a well), independently. In addition, another intermediate part is visible, where the seals (12) are placed, which joins the two modules and is crossed by the single axis. As it is obvious, no means for anchoring the assembly are described. Similar converters, used in various applications, are described in documents D02, D03, D04 and D05. Therefore claim 1 is not new. If there is a single axis, the intermediate module must be hollow for the joint axis of both pistons to pass through it, as seen in documents D01 and D03. Although an intermediate module is not explicitly described in documents D02, D04 and D05, the connection between the two cylinders can be considered as such, and it is also hollow as it is crossed by the single axis. Then claim 2 is not new. Conclusions: In view of the state of the art, claims 1 and 2 are not new within the meaning of article 6.1 of Law 11/1986 of March 20, on invention patents and utility models. State of the Art Report Page 4/4