US1778241A

US1778241A - Attachment for internal-combustion engines

Info

Publication number: US1778241A
Application number: US192324A
Authority: US
Inventors: Boyce Erskine Ebenezer
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-05-18
Filing date: 1927-05-18
Publication date: 1930-10-14
Anticipated expiration: 1947-10-14

Description

Oct. 14, 1930. 5 BOYCE 1,778,241

ATTACHMENT FOR INTERNAL COMBUSTION ENGINES Filed May 18, 1927 Patented Oct. 14, 1930 UNITED STATES ERSKINE EBENEZER BOYCE, OF CORONADO, CALIFORNIA ATTACHMENT FOR INTERNAL-COMBUSTION ENGINES Application filed May 18, 1927. Serial No. 192,324.

This invention is an improvement in attachments for internal combustion engines, and more particularly in lubricators for the engines of motor vehicles.

Lubricating systems for internal combustion engines are usually arranged to be operated by the motor or engine, the system usually including a pump operated by a moving part of the engine, and there is no lubrication until the engine is working.

hen the engine is idle, the film of oil between the piston and the cylinder drains or dries away, and in starting there is a great liability to cutting and scoring of the cylinder wall before the film of oil is again in place.

Mechanically operated lubricating devices have been suggested, designed to insert oil into the cylinder prior to starting, but such devices are dependent upon the driver as to whether or not they will be operated prior to the starting, and are hence liable to be forgotten when most needed. a

One of the primary objects of the present invention is the provision of mechanism for introducing lubricant between the cylinder and the piston at the moment of starting, and controlled to operate by the actuation of the starting mechanism of the engine.

Another object is the provision of a simple inexpensive mechanism, not dependent upon the volition of the driver for its operation.

With these and other objects in view the invention consists in the construction and novel combination of parts fully described hereinafter, illustrated in the accompanying drawings, and pointed out in the claims appended hereto, it being understood that vari: ous changes in the form. proportion. size and minor details of construction within the scope of the claims. may be resorted to without departiii gfrom the spirit of the invention.

In the drawings v Fig. 1 is a vertical section through the improved lubricator in place on the foot board of a motor vehicle, and with a part of the engine or motor in section.

' Fig. 2 is an enlarged section on the line 22 of Fig. 1. I

Fig. 3 is a vertical section of an alternate form of pump.

The embodiment of the invention illustrated in Fig. 1 is shown in connection with one of the cylinders 1 of an engine 2 of usual construction, the cylinder having the piston 3 movable therein. in the present instance a chamber 4 of cylindrical form, in which is movable a piston 5, the stem 6 of which is encircled by a spring 7 acting normally to move the piston to the position shown.

A pipe 8 leading from the chamber has branches 9 extending on opposite sides of the cylinder. From each branch a plurality of connections 10 leads to each cylinder, two connections being provided from each branch in the present instance. That is, each cylinder has tour connections with the pump chamber, and they open into the cylinder in spaced relation at intervals of approximately 90. The connections open just below the rings of the piston when it is in its lowermost position, as clearly shown in Fig. 1.

Each branch 10 has a spring controlled check indicated at 11, and a similar check 12 is arranged between the chamber 4 and the pipe 8. Preferably the chamber is supplied from a tank or reservoir 13, by means of a pipe 14, and the reservoir is supplied in any suitable manner by means of pipes 15. A spring controlled check 16 is arranged between the reservoir and the chamber.

\Vith this arrangement whenever the piston or plunger 5 is depressed against the resistance of the spring 6 lubricant will he forced through the

pipes

8, 9 and 10 into the cylinders, and into position between the cylinder walls and the pistons. In order to insure that lubricant will be supplied prior to the starting of the engine. the operating mechanism for the plunger 5 is arranged in such position that before the starter of the engine can be operated, the plunger 5 must be operated to inject oil into the cylinders.

With this object in view, the chamber 4, as also the reservoir 13, are arranged on the dashboard 17 of the vehicle. A lever 18 is pivoted at 19 to the dashboard, and one end of the lever overlies the end of the stem 6, the

The lubricator comprises said end being provided with a head 20 for engagement by the lever. The opposite end of the lever extends through an opening in the dashboard to a position just above the starter button 21 of the engine, which is mounted on the foot plate 22 in the usual manner. It will be obvious from the description that the button cannot be operated to start the engine until the adjacent end of the lever 18 is depressed into contact there-' with, the end of the lever 18 access to the button.

In operation, whenever the starter is operated to start the engine, the lever 18 first must be operated to depress the plunger 5. The chamber 4 and the pipes\8, 9 and 10 are full of lubricant, and the depression of the plunger forces a part of the oil through the pipes 10 into the cylinders, between the walls thereof and the pistons. The first stroke of the pistons will spread the films of oil, and there will be no scratching or cutting of the wall due to a lack of lubrication. Neither is the device dependent upon the driver, the starting of the engine in the usual manner-being impossible without first operating the lubricating pump.

In Fig. 3, an alternate form of pump is shown. In this arrangement'the pump comprises a casing 23, one Wall 24 of which is a resilient diaphragm. Pipes 25 and 26 lead from the reservoir tothe casing, and from the casing to the lubricating system respectively, being arranged in the same manner as the

pipes

14 and 8 of Fig. 1, and each pipe 25 and 26 has the spring controlled check 27. The flexible diaphragm is operated by means of an elbow lever 28. This lever is pivoted at 29,

preventing direct .and one arm thereof, not shown, overlies the starter-button in the same manner as one end of the lever 18 overlies the said button. The operation, so far as concerns lubrication, is precisely the same.

Each form of pump includes a casing or chamber normally resiliently expanded, with means, the lever, to compress the chamber when moved in actuating. the starting device to expel lubricant from the chamber.

What is claimed as new is 1. In combination with an internal combustion engine having a starting device, and means for actuating the device, mechanism for injecting lubricant into the cylinders of the engine, movable means for operating said injecting mechanism arranged above the starting device actuating means and in position to prevent direct operation thereof without prior operation of'the movable means to operate the injecting mechanism.

2. In combination with an internal combustion engine having a starting device, and means for actuating the device, mechanism for injecting lubricant into the cylinders of the engine at a selected point in each, a lever for operating said injecting mechanism, said of May, A. D. 1927.

lever having a portion screening the actuatventing operation thereof Without prior op.- eration of the lever to operate the injecting mechanism.

3. In combination with an internal combustion engine having a starting device, and means for actuating the device, mechanism for injecting lubricant into the cylinders of the engine at a selected point in each, a lever for operating said injecting mechanism, said lever having a portion screening the actuating means for the starting device and preventing operation thereof Without prior operation of the lever to operate the injecting mechanism, the injecting mechanism including a pipe having branches extending on opposite sides of the cylinders, a plurality of connections between the branches and the cylinders, said connections opening at the same level, and means operated by the lever to increase the pressure in the pipe and branches.

4. In combination with an internal combustion engine having a starting device, and means for actuating the device, mechanism for injecting lubricant into the cylinders of the engine at a selected point in each, a lever for operating said injecting mechanism, said lever having a portion screening the actuating means for the starting device and preventing operation thereof without prior operation of the lever to operate the injecting mechanism, the injecting mechanism including a pump for lubricant having a plurality of connections with each cylinder, and a reservoir for lubricant communicating with the pump.

5. In combination with an internal combustion engine having a starting device, and means for actuating the device, mechanism for injecting lubricant into the cylinders of the engine at a selected point'in each, a lever for operating said injecting mechanism, said lever; having a portion screening the actuating means for the starting device and preventing operation thereof without prior operation of the lever to operate the'injecting mechanism, the injecting mechanism including a compressible chamber having a plurality of connections with each cylinder, said chamber normally resiliently held in expanded conditionfand compressed by the lever when moved in actuating the starting device to expel lubricant from the casing.

Signed at Coronado in the county of San Diego and State of California this 12th day ERSKINE EBENEZER BOYCE.

mg means for the starting device and pre-