US20110123352A1

US20110123352A1 - Electric pump with time setting and enhanced oil-pipe transfer capability

Info

Publication number: US20110123352A1
Application number: US12/623,440
Authority: US
Inventors: Ming Der LAI
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-22
Filing date: 2009-11-22
Publication date: 2011-05-26

Abstract

An electric pump with time setting and enhanced oil-pipe transfer capability, which comprising at least: an electric pump, a timer and an electromagnetic valve; the electric pump is used to supply lubricating oil for the engine operation, and a motor is equipped to provide boosting pressure and strong transfer power, thus preventing reduction of suction and oil feed of oil pipeline for the intake manifold of engine during urgent acceleration; the timer is electrically connected with the engine's starting switch and motor, helping to activate the energized engine after startup, and enable the startup and shut-off of timing control oil feed within a fixed time; the electromagnetic valve is electrically connected with the timer and also controlled by it for the opening and closing, so as to realize correct and accurate oil feed and braking.

Description

BACKGROUND OF INVENTION

1. Field of the Invention
The present invention relates generally to an improved engine oil feed system, and more particularly to an electric pump which is designed with time setting and enhanced oil-pipe transfer capability for improving the engine lubricating efficiency and operating performance.
2. Description of Related Art
Most of conventional engines have shortcomings such as insufficient or inaccurate oil feed, particularly for gas fuel engines, which affects the normal clearance between the cam of exhaust camshaft and top of valve link, leading to improper depression, wear and sealing, vulnerability to high-temperature in the combustion chamber of the engine and incomplete fuel combustion as well as poorer lubricating effect and operating performance; the biggest disadvantage of conventional engine oil feed system lies in its inability to control accurately the required oil feed, resulting in lower performance of engine. In particular, more engine oil is required to maintain satisfactory lubricating effect and improve the engine performance during its startup and urgent acceleration. However, the suction in the oil pipe of conventional engine will weaken and reduce the oil feed, thus cutting down greatly the lubricating effect.
In view of the imperfect structural design of conventional engine oil feed device, the inventor has made continuous efforts to make improvements, and finally developed an “electric pump with time setting and enhanced oil-pipe transfer capability” for the benefit of the general public.
Thus, to overcome said problems of the prior art, it would be an advancement if the art to provide an improved structure that can significantly improve the efficacy.
Therefore, the inventor has provided the present invention of practicability after deliberate design and evaluation based on years of experience in the production, development and design of related products.

CONTENT OF INVENTION

The primary objective of the present invention is to provide an electric pump with time setting and enhanced oil-pipe transfer capability, thus improving the engine's lubricating effect and operating performance.
Another objective of the present invention is to provide an electric pump with time setting and enhanced oil-pipe transfer capability, which is equipped with a piston-type inching power supply unit to realize real-time oil supply during initial startup and urgent acceleration of engine, helping to achieve perfect lubricating effect.
For said purposes, the major technical means hereto include: an electric pump, a timer and an electromagnetic valve; the electric pump is used for feeding oil to operational engine, and equipped with a motor to provide boosting pressure and strong transfer power, thus preventing reduction of suction and oil feed of oil pipeline for the intake manifold of engine during urgent acceleration; the timer is electrically connected with the engine's starting switch and said motor, helping to activate the energized engine after startup, and enable the startup and shut-off of timing control oil feed within a fixed time; the electromagnetic valve is electrically connected with the timer, and also controlled by the timer for its opening and closing so as to realize correct and accurate oil feed and braking.
Said electric pump can be equipped with a piston-type inching power supply unit, which allows for temporary independent operation of the self-pressurized motor and electromagnetic valve, thus realizing real-time self-pressurized oil feed to meet the demand during initial engine startup and urgent acceleration.
The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.

SUMMARY OF THE INVENTION

Referring to FIG. 1, the electric pump 1 of the present invention for oil feed is equipped with a motor 10, a timer 2 and an electromagnetic valve 3.
The electric pump 1 comprises a pump and a motor, of which the pump consists of a cover 11 and a tank 12; this pump has almost the same structure with the conventional lubricating tank, for instance, the cover 11 is fitted with an inlet valve 111, a pressure valve 112, an oil dripping window 113, a regulating valve 114, fixed bolt 115, an outlet valve 116 and a current equalizer 117; lubricating oil is stored in the tank 12, wherein oil pipe is connected with the regulating valve 114 to feed the lubricating oil and output it through the oil manifold of the current equalizer 117.
The electric pump 1 of the present invention is structurally characterized by that: the oil feed mode is changed into self-pressurized output by motor 10 from originally absorbing oil through the oil pipe 121 in the tank 12 into the regulating valve 114, and a timer 2 is set and electrically connected to control accurately the opening and closing of the electromagnetic valve 3 at outlet valve 116, realizing accurate constant oil output.
In practice, an oil outlet 121 is set properly at the bottom of the tank 12 and connected with a vane-type motor 10, whose output is linked to the oil pipe 121; the other end of the oil pipe 121 is connected back to the regulating valve 114; with the dynamic pressurization of the motor 10, it is possible to provide stronger oil transfer power, and prevent reduction of suction and oil feed of oil pipeline for the intake manifold of engine during urgent acceleration.
In terms of the source of electric power, the electric pump 1 is operated synchronously with the starting switch of the engine, namely, the electric pump 1 is operated after startup of the vehicle, otherwise stopped after turn-off; in practice, both the motor 10 and the electromagnetic valve 3 are electrically connected with the timer 2 for synchronous operation; then the timer 2 is electrically connected with the starting switch of the engine; also, the timer 2 is preset for startup/shut-off of the motor 10 and the electromagnetic valve 3, and the timer 2 is triggered simultaneously after the starting switch is turned on; with the setting of the timer 2, it is possible to provide accurate constant oil output in fixed time.
Referring also to FIG. 3—an assembly view of another preferred embodiment of the electric pump of the present invention, wherein diaphragm type motor 10 is used for pressurized output of lubricating oil. The only difference is that the lubricating oil can be supplied by original electric pump 1 or the lubricating oil tank; with this composition, the lubricating oil is absorbed through up-and-down reciprocating movement of the diaphragm type motor 10, and then output via an oil pipe 121 to the regulating valve 114, and the timer 2 is used to control the opening of the electromagnetic valve 3 for transient ejection to provide stronger oil transfer power.
Referring to FIG. 4—an assembly view of another preferred embodiment of the present invention, wherein a piston-type inching power supply unit 4 is additionally set; in practice, it is temporarily fixed within the housing of air cleaner assembly. The piston-type inching power supply unit 4 at least contains: a frame 40, a piston cylinder 41, an inching switch 42 and a relay 43; of which the C-shaped frame 40 is used for fixation of the piston cylinder 41, which is locked securely with a locker 401; one end of the piston cylinder 41 is linked to the engine's intake manifold, and the other end is fitted with a vertically lifting top plug 411 aligned with the inching switch 42, and a spring 412 is set to support the top plug 411; the normally closed inching switch 42 is connected with the negative electrode of the starting switch, and activated to provide a negative current to the electromagnetic valve 3 and motor 10 of the electric pump 1; meanwhile, a positive current is supplied separately to the electromagnetic valve 3 and motor 10 of the electric pump 1 from the vehicle electric door; the relay 43 is separately linked to the output negative electrode of the inching switch 42 and positive electrode of the engine's starting switch; after the engine is started, the electric pump 1 permits constant oil feed according to the preset time of the timer 2; when the engine is accelerated, air enters quickly into the piston cylinder 41 to push the top plug 411 for displacement and contact with the inching switch 42, thus providing quickly a negative current to the electromagnetic valve 3 and motor 10 via the relay 43; since the electromagnetic valve 3 and the motor 10 are supplied with a positive current after startup of engine, pressurized oil supply will start immediately after negative current is input, without need of the control of the timer 2 temporarily to meet the oil supply required during urgent acceleration of the engine. Besides, the power supply of the motor 10 can be turned into a normally open state under the direct control of the engine's starting switch; after the electromagnetic valve 3 is opened, the required amount of lubricating oil will be ejected immediately. Of course, both of the electric pumps 1 with different motors 10 can be additionally equipped with a piston-type inching power supply unit, allowing to realize real-time oil supply and excellent lubricating effect during initial startup and urgent accelerant of the engine, as shown in FIG. 5.
Additionally, the frame 40 and the piston cylinder 41 of the piston-type inching power supply unit 4 are combined in a way that the vertical shift can be adjusted, where necessary, so as to shorten or prolong the spacing between the top plug 411 and inching switch 42, and adjust the response time of the piston-type inching power supply unit 4; certainly, the spring 412 within the piston cylinder 41 can be replaced for adjusting the response time.
Therefore, with the elaborate design of the inventor, the electric pump of the present invention is equipped with a timer for constant oil feed control to prevent unsmooth operation of engine due to excessive or insufficient oil feed; meanwhile, in combination with the pressurization of motor and opening/closing control of the electromagnetic valve, the lubricating oil will be transferred to the engine more powerfully for realizing real-time and perfect lubricating effect; additionally, given the fact that more lubricating oil is required to maintain the engine performance during its startup and urgent acceleration, a piston-type inching power supply unit is provided, enabling to start directly the motor and electromagnetic valve independently of the timer for the moment, and supply instantly real-time pressurized oil to the engine for an improved lubricating effect, thereby avoiding efficiently the degraded effect due to insufficient oil supply during engine operation.
Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention as hereinafter claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an external view of the preferred embodiment of the electric pump of the present invention.
FIG. 2 shows an assembly view of the preferred embodiment of the electric pump of the present invention.
FIG. 3 shows an assembly view of another preferred embodiment of the electric pump of the present invention.
FIG. 4 shows an assembly view of the present invention concerning another preferred embodiment of the electric pump and piston-type inching power supply unit.
FIG. 5 shows an assembly view of the present invention concerning another preferred embodiment of the electric pump and piston-type inching power supply unit.

Claims

1. An electric pump with time setting and enhanced oil-pipe transfer capability, comprising:

an electric pump, further comprising a cover and a tank; and the cover is fitted with an inlet valve, a pressure valve, an oil dripping window, a regulating valve, a fixed bolt, an outlet valve and a current equalizer;

a motor connected to the electric pump via an oil pipe, with its output linked to the regulating valve through the oil pipe;

an electromagnetic valve fixed securely at the outlet valve on the cover of the electric pump; and

a timer electrically connected to control the opening and closing of the drive motor and electromagnetic valve.

2. The electric pump with time setting and enhanced oil-pipe transfer capability as claimed in claim 1, wherein the motor is of vane-type or diaphragm type.

3. The electric pump with time setting and enhanced oil-pipe transfer capability as claimed in claim 1, wherein the power source of the timer is supplied by the starting switch of the engine.

4. The electric pump with time setting and enhanced oil-pipe transfer capability as claimed in claim 1, wherein a piston-type inching power supply unit also includes: a frame, a piston cylinder, an inching switch and a relay.

5. The electric pump with time setting and enhanced oil-pipe transfer capability as claimed in claim 4, wherein the C-shaped frame is combined securely with the piston cylinder by a locker, allowing to adjust vertically the position of the piston cylinder.

6. The electric pump with time setting and enhanced oil-pipe transfer capability as claimed in claim 4, wherein the power source of the motor is supplied by the starting switch of the engine.