WO2019126852A1

WO2019126852A1 - Constructive arrangement introduced in fuel pump

Info

Publication number: WO2019126852A1
Application number: PCT/BR2018/050475
Authority: WO
Inventors: Felipe Nista FECIANO; Anderson Cortez GONSALVES; Bruno Viana Contin HUNGER; Silvio Batista PEREIRA
Original assignee: Robert Bosch Limitada
Priority date: 2017-12-27
Filing date: 2018-12-20
Publication date: 2019-07-04
Also published as: BR202017028330U2

Abstract

It is disclosed an integrated fuel pump, among other functionally necessary elements and components, at least one main body, by a solenoid housing structure, and identification markings arranged directly on the housing structure.

Description

CONSTRUCTIVE ARRANGEMENT INTRODUCED IN FUEL PUMP

Field of the Utility Model

[001 ] The present utility model relates to a constructive arrangement introduced in fuel pump, which comprises an object of practical use, whose unique form of one of its components results in the improvement of its manufacture.

[002] Said fuel pump, in a preferred manner used in automotive vehicles, is provided with identification markings arranged in an improved manner, which result in material economy and ease of production.

Fundamentals of the Utility Model

[003] As known to those skilled in the art, fuel pumps, which are commonly used in automotive vehicle ignition systems, are intended to displace/ pump the fuel stored in a tank to the engine feed system. In this way, a fuel pump comprises at least one fuel inlet, at least one fuel outlet and at least one fluidic circuit for fuel circulation. It is common for said fluidic circuit to comprise at least one electrovalve dedicated to controlling the flow of fuel.

[004] It is extremely important to mention that the basic construction and the functional principles of fuel pumps are widely known to those skilled in the art, and are widely described in specific technical literature.

[005] However, and as a contextualization, Figure 1 shows a trivial embodiment of a fuel pump belonging to the current state of the art. In a general manner, said fuel pump comprises a main body A and a housing structure B for the solenoid D1 of the actuator D2 of the electrovalve. In addition, said fuel pump further comprises a spacer C, which comprises a flange type piece arranged between a portion of the main body A and the housing structure B.

[006] Also, still according to the knowledge of those skilled in the art, fuel pumps typically comprise identification markings, arranged externally to the pumps to facilitate recognition of their individual characteristics of production and operation of each.

[007] In the solutions provided in the state of the art, such markings are made by laser, in a preferred manner on metal plates E, arranged on the main body A. Such solutions present numerous drawbacks, since they require the presence of an additional metallic material, which does not exert any another function in the fuel pump other than to receive said markings.

[008] Also, such a metal plate needs to be attached to the structure of the fuel pump, which hinders the manufacturing process as a whole.

[009] Patent documents DE1021 1355, CN101315054 and

US6012433 disclose fuel pumps, in which the identification markings are made by laser, however, it is not clear whether such markings require the use of some intermediate element, such as the aforementioned metal plate.

[010] In this way, there is a need for new solutions for identification markings of fuel pump, which allow easier production and, above all, material economy.

[01 1] It is from this scenario that the utility model in question emerges.

Objectives of the Utility Model

[012] In this manner, it is the primary purpose of the utility model in question to disclose a constructive arrangement introduced in fuel pump whose identification markings are easily arranged in the structure of said fuel pump.

[013] In addition, it is also an objective of the present utility model to disclose a constructive arrangement introduced in fuel pump whose production process is simplified, with material economy, with respect to the arrangement of the identification markings.

Summary of the Utility Model

[014] The objectives summarized above are fully achieved by means of the constructive arrangement introduced in fuel pump, which is integrated by at least one main body, at least one housing structure of at least one solenoid of electricvalve, wherein said fuel pump further comprises identification markings arranged directly on said housing structure.

[015] In a preferred embodiment, said identification markings are made by laser. Yet more in a preferred manner, said housing structure is made of polymeric material, particularly epoxy resin.

Brief Description of the Drawings

[016] The utility model in question will be detailed in detail on the basis of the illustrative figures listed below, which:

[017] Figure 1 shows, in a schematic manner, a conventional fuel pump, belonging to the present state of the art;

[018] Figure 2 shows, in a schematic manner, the arrangement of a metal plate with the identification markings, belonging to the current state of the art;

[019] Figure 3 shows, in a schematic manner, the arrangement of the identification markings according to the present utility model.

[020] Figure 4 shows, in a schematic manner, the fuel pump according to the present invention.

Detailed Description of the Utility Model

[021] In this manner, and in accordance with the central objectives of the utility model in question, it is disclosed a novel constructive arrangement introduced in fuel pump whose inventive merit is primarily focused on the arrangement of the identification markings, as shown in Figures 3 and 4.

[022] Preliminarily, it is again emphasized that the general components and basic functional principles of fuel pumps, such as that illustrated in Figure 4, are well known to those skilled in the art and, in addition, are widely described in specific technical literature. [023] In any case, and as shown in figure 4, it is observed that the fuel pump, object of the present utility model, is essentially composed of at least one main body (1 ), and at least one housing structure (2) of at least one solenoid (3) of electrovalve.

[024] Said fuel pump further comprises identification markings (4) arranged directly on said housing structure (2). In this way, the markings are arranged in an easy-to-view region.

[025] As can be seen from Figure 3, the identification markings (4) arranged directly on the housing structure (2) discard the use of any metal plate, such as the existing solutions in the state of the art, which guarantees material economy and greater ease of production to the fuel pump of the present utility model.

[026] In a preferred manner, said identification markings (4) are made on the housing structure (2) by laser.

[027] Also, in a preferred manner, said housing structure (2) is made of polymeric material, so as to facilitate the markings by laser, and allow greater ease of production.

[028] Among the polymeric materials most preferred for confection of the housing structure (2), the most outstanding are epoxy resins.

[029] In this manner, it remains clear that the present utility model provides a solution to the problem of identification markings on fuel pumps, allowing the removal of the traditional metal plate used in the state of the art. The constructive arrangement of the present utility model presents material economy, and greater ease of production in relation to the fuel pumps of the state of the art.

[030] It is important to emphasize that the above description has as sole objective to describe in an exemplary way the particular embodiment of the utility model in question. It is therefore clear that modifications, variations and constructive combinations of the elements performing the same function, in substantially the same manner, to achieve the same results, remain within the scope of protection delimited by the appended claims.

Claims

1. Constructive arrangement introduced in fuel pump, the said one being integrated by:

at least one main body (1 );

at least one housing structure (2) of at least one solenoid (3) of electrovalve;

said constructive arrangement introduced in fuel pump being especially CHARACTERIZED by the fact that it comprises identification markings (4);

wherein said identification markings (4) are arranged directly on said housing structure (2).

2. Constructive arrangement introduced in fuel pump, according to claim 1 , CHARACTERIZED by the fact that said identification markings (4) are made by laser.

3. Constructive arrangement introduced in fuel pump, according to any one of claims 1 to 2, CHARACTERIZED by said housing structure (2) being made of polymeric material.

4. Constructive arrangement introduced in fuel pump, according to claim 3, CHARACTERIZED by said housing structure (2) being made of epoxy resin.