Auxiliary electric oil booster pump apparatus for a motorcycle   

The present invention relates generally to a motorcycle and a oil boost pump apparatus that is electrically power driven by a motorcycle\'s electrical system for delivering additional oil pressure and volume to the motorcycle\'s engine.

A boost pump apparatus mounted in a motorcycle saddle bag that is fluid communicated through hoses from a motorcycle oil tank output to a low pressure boost pump input delivered by a gear head oil pump output communicated to the input pressure galley of a motorcycle engine. In the art of discovery of a V-Twin air cooled motorcycle engine that is design with the use of hydraulic valve lifters, must have adequate oil pressure and volume to produce the manufactures designed of hydraulic lifter performance such as “Andrew\'s Cam manufacture” specifications of 10 psi and above.

Oil pump design such as a Harley-Davidson motorcycle V-Twin air cooled engine driven gerotor stock oil pump is factory set to operate fluid pressure at, a range of 5 psi at its lowest to 38 psi at its highest under normal operating temperatures considered by the factory\'s engine service manual.

As the oil temperature begins to rise above normal operating temperatures due to inadequate air flow across the engine cylinders, above normal temperatures, oil viscosity begins to decrease the performance of the engine driven gerotor oil pump\'s psi and volume. At engine idle speeds, oil pressure and volume falls below 10 psi producing poor hydraulic lifter performance for correct valve train push rod clearance operation. These results of incorrect valve lash clearance will cause internal mechanism damage to, the valve train push rod operation.

SUMMARY

The object of the present invention, is to assist the motorcycle\'s engine driven oil pump to maintain a constant oil pressure and volume at 10 psi for normal hydraulic lifter performance, design by the hydraulic lifter manufacture\'s specification.

In a further object of the present invention, is to perform an oil priming fluid flow pre engine start cycle that primes the hydraulic lifters and protects the internal mechanisms from metal to metal friction that could cause damage to the engine during starting.

In even a further object of the present invention, is to provide adequate fluid pressure and volume to the engine\'s mechanisms in an event of a motorcycle engine driven oil pump failure that could lead to a catastrophe internal mechanism failure.

In yet even a further object of the present invention, is to perform a quick drain oil tank fluid cycle for removal of the motorcycle\'s engine oil from the oil tank so as to replace it with a new oil product.

Accordingly, there is set forth an auxiliary electric low pressure oil booster pump comprising of an oil pump system that is mounted on a motorcycle in a enclosed box to install inside the saddle bag for storage and operation with a connect/disconnect fluid coupled communication and a electrical quick connect/disconnect coupled communication so as remove the saddle bag for access required to service the motorcycle.

Within the cast aluminum square box with an access lid, includes an electrical 12 volt dc small motor, close coupled to a gear head pump in communication from the engine\'s oil tank output to a communication input of a magnetic filter screen output to a check valve input to the oil pump input to the said pump output to communicate input to a check valve output to the input of the engine\'s oil pressure galley.

Electrically communicated output from the motorcycle\'s electrical ignition switch system, a quick connect/disconnect coupled communication to an electronic control relay unit input, communicates output to the said oil pump motor input to operate automatic functions for a time delay “on” 10 second boost pump fluid priming output cycle to the quick connect/disconnect coupled communication input of the engine\'s oil pressure galley before engine start; then disconnects electrical output communication from the said relay to the input of the said pump motor to cease oil pressure boost pump fluid output to the input of the engine\'s oil pressure galley.

After engine start, the output of the motorcycle\'s electrical charging system reaches 13.5 volts; a communication input to trigger the said relay output for providing electrical voltage to communicate input to a preset 10 psi normally closed oil pressure switch output, providing electrical voltage communication to the input of the said pump motor as required.

The value oil pressure fluid below 10 psi input of said oil pressure switch will be communicated electrically to the input of the said pump motor to operate the said oil boost pump continuously to boost additional oil pressure and volume fluid to the input of the engine\'s oil pressure galley that will provide adequate oil to the hydraulic lifters and internal mechanisms.

When the value oil pressure fluid above 10 psi output of the engine driven oil pump, communicates fluid input of the said psi oil switch, the said switch will communicate electrically from the said electronic control relay to the said oil switch input to the said oil switch output to the said pump motor input to cease operation of the said oil boost pump fluid output to the oil pressure fluid input of the engine\'s oil pressure galley.

After engine shutdown; the motorcycle\'s electrical charging system voltage value of 14.5 decreases to 12.0 voltages. As the voltage decreases through 13.5 volts, an electrical communication to the trigger of the said relay input communicates the said relay to disconnect input voltage communication from the output communication of the motorcycle\'s 12 volt electrical system, so as if left energized below 13.5 volts, will prevent operation of said pump motor and said oil boost pump from continuously providing fluid boost pump pressure communication to the input of the engine\'s oil pressure galley during engine shutdown.

Access outside the said box is a 10 amp fuse holder with cap to replace the fuse that protects the electrical current to the said relay and said boost pump motor in the event of a current load above 10 amps.

Also a cover protected electrical on-off toggle switch to energize communication input from the motorcycle\'s electrical ignition switch output, communicates the said pump motor input, to drive the said oil boost pump input, to communicate engine oil tank output fluid flow to the said oil boost pump input to said pump output to communicate fluid flow to remove engine oil through a quick connect/disconnect coupled output hose in place of the engine\'s oil pressure galley input hose to collect the oil outside of the engine\'s oil tank for disposal.

BRIEF DESCRIPTION OF THE DRAWINGS

The aspects and advantages of the present invention will be better understood when the detailed description of the preferred embodiment is taken in conjunction with the accompanying drawings in which:

FIG. 1 shows a perspective view of the electric oil booster pump and box assembly.

FIG. 2 shows a perspective view of the said box with lid, covered toggle switch and fuse holder.

FIG. 3 shows a perspective view of the bottom face of the said box with input and output oil communication ports, covered toggle switch and the fuse holder.

FIG. 4 shows a perspective view of the said oil pump assembly enclose in the motorcycle rear saddle bag with the communication hose plumbing, communicating with the motorcycle engine\'s respective input and output oil communication ports.

FIG. 5 shows a perspective view of the electrical wiring circuit schematic of the motorcycle ignition system and the said oil booster pump circuit system.

DETAILED DESCRIPTION

Provided herein is a system apparatus for boosting oil pressure on an air cooled motorcycle engine such as the type manufactured by the “Harley Davidson Motorcycle Company”. V-Twin air cooled engines that are manufacture designed with the use of hydraulic valve lifters, require a minimum of 10 pounds of oil pressure to apply correct valve lash clearance for the design performance of the hydraulic valve lifter manufacture specifications, such as the “Andrew\'s Cams Manufacture”.

Gerotor oil pumps installed in V-twin air cooled motorcycle engines, decreases oil pressure performance when oil temperature rises above the manufacture\'s design normal operating temperature. During engine idle speeds, oil pressure can fall below 10 psi causing poor engine performance. This present invention will assist the gerotor oil pump to maintain a constant oil pressure of 10 psi to provide the manufacture\'s required oil pressure for correct hydraulic lifter design operation.

Referring now to FIG. 1, is the box 10 assembly that includes the electric motor oil boost pump 12, plumbed in a directional oil flow input starting with 13a, a 90 degree ⅜ fitting couple to union 14a. Union 14a coupled to 15a, a ⅜ one directional flow check valve to prevent oil flow suction loss from the oil tank output 27 in FIG. 4. Couple to 15a, a 90 degree ⅜ fitting 13b couple to the oil boost pump 12 for providing additional oil pressure. Couple to 13c 90 degree ⅜ fitting couple to 15b, a ⅜ one directional flow check valve for preventing back flow oil pressure from the engine 80, oil pressure galley input 28 in FIG. 4. Union coupler 14b couple to 13d is a 90 degree ⅜ output fitting to deliver oil pressure to oil galley 27 in FIG. 4. In oil communication with 13d, a normally closed oil pressure switch 11 provides electrical communication below 10 psi oil pressure to relay 42 in FIG. 5. Electronic control relay 42 in FIG. 5 communicates electrically to the electric motor/pump 12 in FIG. 1, for oil pump operation pressure to the engine 80, input oil galley 28 in FIG. 4.

Referring now to FIG. 2, is the view of the metal box dimensions of 7½×7½×2½ inches. Lid 10a is to access pump unit. Box 10b shows mounting positions for the fuse and holder 16 that protects the internal electrical circuit fuse 43 in FIG. 5 and the covered toggle switch 18 to bypass electrical communication from the electronic relay 42 in FIG. 5 to the oil pressure switch 47 in FIG. 5 to electrically communicate pump motor 50 in FIG. 5, for operation of the oil tank quick drain oil removal system.

Referring now to FIG. 3, is the view of box bottom 10b that shows the position of input oil port 21a and output oil port 21b that communicates to the engine 80 in FIG. 4, input oil pressure galley 28 and the oil tank output 27 in FIG. 4. Also, view of mounting positions of the covered toggle switch 18 and fuse holder 16 on box 10b in FIG. 3

Referring now to FIG. 4, is the view of the boost pump box assembly 10 in relation to the motorcycle\'s saddlebag compartment 30 in communication with the engine 80 by ¼″ stainless steel braided hoses 22 and 23. From the oil tank output 27 of the engine 80, a ¼″ steel braided hose 22 communicates oil flow to the ⅛″ input and output in line quick connect/disconnect coupler 26a that provides removal of the saddlebag 30 to service the motorcycle, communicates to a ⅛″ input and output in line magnetic filter screen 24 that collects metal shavings, then in communication to the input oil port 21a, shown in FIG. 3.

From the booster pump box assembly 10, the output oil port 21b shown in FIG. 3, communicates oil flow through the ¼″ steel braided hose 23 to the ⅛″ input and output in line quick connect/disconnect coupler 26b that provides removal of the saddlebag 30 to service the motorcycle, then in communication to the oil pressure galley 28 to supply additional oil pressure to the engine 80.

Referring now to FIG. 5, is the views of the motorcycle\'s electrical ignition wiring circuit 60 in communication to the quick connect/disconnect coupler 51 that provides removal of the saddlebag 30 shown in FIG. 4 so as to service the motorcycle, and then communicates to the booster pump box assembly 10 electrical wiring circuits.

Wiring circuit box 60 consist of a 12 volt dc lead acid battery 44 with positive volt output that communicates to an on-off ignition switch 45 input to the said switch output to the fuse block box 46 input through a 10 amp fuse output to the input of the quick connect/disconnect coupler 51.

Quick connect/disconnect coupler 51 positive output communicates to the wiring circuit box 10 that includes an 8 amp fuse 43 input to the said fuse output in communication to the electronic control relay 42 input to the said relay output in communication to the oil pressure switch 47 input to the said switch output to communicate to the pump motor 50 input.

Also quick connect/disconnect coupler 51 positive output communicates to the toggle switch 41 input to the said switch output to communicate to the output terminal oil switch 47 to the pump motor 50. Negative input from the motorcycle\'s frame circuit communicates to the quick connect/disconnect coupler 51 input to the said coupler output in communication to the electronic control relay 42 input and the pump motor 50 input.

Referring now to FIG. 5 “circuit operation”, battery 44 supplies 12 volt power to ignition switch 45 input. Switch 45 contacts made, output supplies voltage to the fuse box 46 through a 10 amp fuse to the quick connect/disconnect coupler 51 input.

Output voltage from said coupler 51 supplies voltage input fuse 43 to said fuse output to supply voltage input to time relay 42 to said relay output for 10 seconds to the normally closed oil switch 47 input to said switch output to supply voltage to pump motor 50 that will the drive oil boost pump to deliver oil to engine 80 shown in FIG. 4 for priming hydraulic lifters and lubricating the internal mechanical parts.

After 10 seconds, power output from the timer relay 42 will discount voltage supply to the pump motor 50 input, to cease oil pump priming.

After engine start, the motorcycle\'s electrical charging system increase\'s above 13.5 volts, output voltage from box 60 will supply voltage to box 10 to trigger relay 42 input to said relay output to supply voltage to oil switch 47 input to said switch output to supply voltage to pump motor 50 input.

During engine operation, when the oil pressure decrease\'s below 10 psi, oil switch 47 will close the contacts to complete the circuit to the pump motor 50 input from the relay 42 output to drive the oil boost pump for additional oil pres

During engine shutdown, the motorcycle electrical charging system decrease\'s below 13.5 volts, output voltage from box 60 that supply\'s voltage to box 10 input will trigger relay 42 to disconnect voltage output to oil pressure switch 47 input to the said switch output to the pump motor 50 input, to prevent operation during engine stop when the ignition switch 45 is in the on position.

To activate the quick drain oil tank system, input voltage from battery 44 positive output deliver\'s voltage to the ignition switch 45 input. In the “on” position, contacts are made to output of said switch to deliver voltage to the fuse box 46 input through a 10 amp fuse to the said fuse box output to deliver voltage from box 60 to the quick connect/disconnect coupler 51 input through said coupler output to deliver voltage to box 10 input to the toggle switch 41 input. Switch 41 in the “on” position with contacts made, output voltage to switch 47 outputs terminal will deliver voltage to pump motor 50 input, that will the drive oil boost pump for oil removal from output of oil tank 27 shown in FIG. 4.