BR-202021004513-Y1 - OIL INJECTION PUMP FOR HYDRAULIC PUMPS

Abstract

OIL INJECTION PUMP FOR HYDRAULIC PUMPS. This Utility Model patent relates to an Oil Injection Pump for Hydraulic Pumps (1), which pertains to the field of hydraulics, more specifically to the field of hydraulic pumps. It was developed for use in the lubrication of friction parts that transform the circular motion from a drive shaft into linear motion for the movement of pistons and is located inside the oil sump of the water pump. The Oil Injection Pump (1) consists of a piston (2); piston spring (3); pump body (4); fitting and fixing slots (5); screws for fixing the pump body (6); check valves (7); spacer spring (8); oil inlet plug (9); lower hoses (10); upper hoses (11); hose clamps (12); fastening screws for the clips (13); side injectors (14) and top injectors (15), it is characterized by having the oil injection pump body (4) in one piece with fitting and fastening slots (5), which facilitate and enable maintenance and/or removal of the Oil Injection Pump from the front of the water pump (1), more precisely through the opening (19) of the cover (18) of the crankcase (17), simply by loosening the fastening screws (...).

Inventors

• FERNANDO ROCHA BASTOS CONCEIÇÃO

Assignees

• INDUSTRIAS MECÂNICAS ROCHFER LTDA

Dates

Publication Date

20260317

Application Date

20210310

Claims (1)

1. 1) “OIL INJECTION PUMP FOR HYDRAULIC PUMPS” (1) which refers to the area of hydraulics, more specifically to the area intended for hydraulic pumps, which was developed to be used in the lubrication of friction parts that perform the transformation of circular motion from a drive shaft into linear motion for the movement of pistons and is located inside the oil sump of the water pump, the Injection Pump (1) consists of piston (2); piston spring (3); injection pump body (4); fitting and fixing slots (5); fixing screw for the oil injection pump body (6); check valves (7); spacer spring (8); plug with oil inlet (9); lower hoses (10); upper hoses (11); hose clamps (12); fixing screws for the clamps (13); with side injectors (14) and top injectors (15), it is characterized by having the oil injection pump body (4) as a single piece with slots for fitting and fixing (5), which facilitate and enable maintenance and/or removal of the Oil Injection Pump (1) from the front of the Water Pump, more precisely through the opening (19) of the cover (18) of the crankcase (17), simply by loosening the fixing screws of the oil injection pump body (6) and moving the oil injection pump upwards, similar to a drawer.

Description

INTRODUCTION 001 This descriptive report of a Utility Model Patent concerns an Oil Injector Pump for Hydraulic Pumps, hereinafter referred to as the Oil Injector Pump, which was developed for use in the lubrication of friction parts that transform the circular motion from a drive shaft into linear motion for the movement of pistons and is located inside the oil sump of the water pump. 002 In this way and to meet the intended purposes, the Oil Injection Pump now under consideration consists of a piston; piston spring; oil injection pump body; fitting and fixing slots; screws for fixing the oil injection pump body; check valves; spacer spring; plug with oil inlet; lower hoses; upper hoses; hose clamps; screws for fixing the clamps; side injector nozzles and upper injector nozzles. FIELD OF APPLICATION 003 The field of application for this Oil Injection Pump refers to the area of hydraulics, more specifically to the area intended for hydraulic pumps. PURPOSE 004 The purpose and main function of this Oil Injection Pump is to lubricate the friction parts that transform the circular motion from a drive shaft into linear motion for the movement of the pistons, noting that it is located inside the oil sump of the water pump. PROBLEMS TO SOLVE 005 As is generally known among technicians in the field, the hydraulic pumps currently available on the market have two through holes for mounting in the oil injection pump body. It is important to highlight that the model in question has the disadvantage of requiring two sizes to accommodate two groups of hydraulic pump sizes. 006 Furthermore, given that the existing model in the state of the art has holes, it requires the complete removal of the fixing screws and consequently also necessitates the disassembly of the pump bearing, as well as other parts, to access and remove the fixing screws, which results in a delay in the removal of the oil injection pump. STATE OF THE ART 007 From the analysis of the problems encountered and aiming at placing on the market a product endowed with its own development characteristics, a search was carried out in the INPI - National Institute of Industrial Property Database in order to find possible prior art and in this search the following processes were found: - BR 11 2017 019112-1 filed on 03/03/2016 and published on 24/04/2018 under the title "HYDRAULIC PUMP SYSTEM FOR PUMPING A MEDIUM", the present invention refers to a hydraulic pump system for pumping a pasty medium comprising at least two reciprocating positive displacement pumps, both pumps being arranged for alternating entry of pasty medium through a suction inlet and discharge of pasty medium through a discharge outlet, and piston/cylinder discharge valves for alternating closing and opening of each discharge outlet. In a first aspect, embodiments of a hydraulic pump system for handling a pasty medium are described, comprising at least two reciprocating positive displacement pumps, both pumps being arranged for the alternating entry of pasty medium through a suction inlet and discharge of pasty medium through an outlet, and piston/cylinder discharge valves for the alternating opening and closing of each discharge outlet, as well as control means to control the alternating opening and closing of both piston/cylinder discharge valves, so that during operation there is no difference in volume in the discharge of the pasty medium. In another aspect of the hydraulic pump system, the aforementioned control means comprise a lever assembly that interconnects the pistons of both piston/cylinder actuated valves - MU 7502241-9 filed on 09/15/1995 and published on 04/22/1998 under the title “DIESEL OIL FLOW REGULATION DEVICE IN TURBOCHARGED ENGINE INJECTION PUMP”, comprising a mechanism equipped with a diaphragm (1) and respective thrust disc (2), fixed by a hexagonal nut (3); piston displacement stop (9) and bushing (4) guide for the turbocharger air pressure tappet (5), through which the piston, or cartridge (9), moves; closing cap (6), pressure regulating spring (7), mechanism protection housing (8); retractable limiting stop (13) through which slides the pin, or plate, threaded at the upper end (10) and respective locknut (11) and adjusting nut (12), of the fuel pump (18) and its helical spring (14); guide of the threaded pin (15) and stud bolt (17), for fixing the device to the fuel pump (18) which device, due to its substantial characteristics, is installed, by means of stud bolts (17), directly on the fuel pump cover (18) of the engine, on its external part, without alteration of any element of the parts involved. 008 From the comparative analysis between the documents found, it is clear that they only reflect the general state of the art, which is why we consider that there are no technical or legal impediments to granting the privilege. TECHNOLOGICAL ADVANCEMENT 009 The technological advancement presented by the Oil Injection Pump is mainly located in its body and corresponds to th