US1050108A - Lubricating system. - Google Patents

Description

P. DAIMLER & A; HEESS.

LUBRIGATING SYSTEM.

APPLICATION FILED APILB, 1912.

1,050,108. PatentedJ-an. 14,1918.

PAUL DAIMLER AND FIRM OF DAIMLER MOTORENGESELLS GERMANY.

ALBERT HEESS, OF C ANNSTATI GE XEMANY, ASSIGNORS TO THE CHAFT, OF STUTTGART-UNTERT'tlRKHEIM,

LUBRICATING SYSTEM.

Specification of Letters Patent. Application filed April 8, 1912.

, Patented Jan. Serial No. 689,317.

To all z /mm it may concern:

e it known that we, PAUL DAIMLER, a sub ect of the King of \Vurt-temberg, and

resident of 87 Vaiblingerstrasse, Cannstatt,

Kingdom of urttemberg, German Empire, and ALBERT Hiauss, a subject of the King of l/Vurttemberg, and resident of 36 Hohenstaufenstrasse, Cannstut't,Kingdom of W'urttemberg, German Empire, have jointly invented a new and Improved Lubricating System, of which the following is aspecification.

This invention relates to an improved lubricating system of the type in which a I to the prior United States plurality of pumps are provided, eachconnected to the respective part to be lubricated.

Hitherto it has been usual to employ pumps of the type in which the supply of lubricant to the pump cylinder is controlled by a separate piston valve, such as is described for example in the specification of Patent No. 1012332. In such cases however,- a separate piston valve is required for each pump, thus consid bly complicating the lubricating sys- The'obg'ect of the present invention is to simplify the construction of such lubricatmgeystems by di spensing with the auxiliary piston valves and fen this purpose the pistons of the pump cylinders are so constructed and st-itutes the controlling valve for the next succeeding pump.

llccording to the present invention the piston of each pump is constructed of dif terential diameter adapted to work within part of the pump piston forces the oil in [me pump. cylinder arranged that. each piston con- I auxiliary pump supplying the lubricant to series of ten pumps.

In order'that our invention may be more clearly understood,

a designates the -reservoir for the lubricant and b the pump cylinder of the auxiliary pump. The cylinders of the main pumps are constructed of differential diameter, the larger part of the main pumps being designatedby b, b and 5 respectively, and the smaller respectively in the accompanying draw- Arranged within the pump cylinder to draw oil into the cylinder through the ports 9 and to force the oil through the connection 7a to the interior of 6 of the first main pump cylinder. Within the main pump cylinders are adapted to work the differential pistons 0' d", c d and c (17 respectively. The pump cylinders are connected in series by means of connections 71. b connecting the larger part of one cylinder to the smaller part of the next cylinder, while the larger part b of the last pump cylinder may be connected to an additional pump or to the reservoir a by means of a connection 12. The pump pistons ar'e adapted to be'driven from a main driving shaft 6 through any motion illustrated diagrammatically on the drawings as comprising shafts e, 6', and

e driven from the shaft 2' and carrying eccentrics Z, Z, Z and Z respectively, to the pump pistons by means of the connecting rods m, m,'m and m respectively. The oil in the smaller parts 6 6 and 5 respcctively of the pump cylinders is adapted to be supplied to the parts to be through the delivery pipes 70, 70 spectively. Y

The operation of the foregoing lubricating system is as follows :On the rotation of the eccentrics e, 6, e 6 the pistons are reciprocated within cylinders. The piston f draws in lubricant through the port 9 and on its downward stroke forces the lubricant through the conand A reparts by 6 6 and suitable reciprocatory their respective pump the smaller part lubricated nection h to the interior of the smaller part on the down-strokeof the piston the lubricant in the larger part. b is discharged through the connection h into'the smaller part b of the next succeeding pump cylinder. The pistons 0 d and c d operate in their corresponding pump cylinders in a manner similar to the operation of the piston c d in the first main pump cylinder. It will be readily understood that anynumber of such main pumps may be arranged in series, and that it is onl necessary to provide an'auxiliary pump or supplying lubricant to the first pump cylinder 6 of the series of main pumps.

1. A lubricating systemfor supplying lubricant from a plurality of pumps to a plurality of parts to be lubricated, comprising a plurality of pump cylinders connected in series and to the parts to be lubricated, each pump cylinder having an oil inlet port, and a piston reciprocated in each cylinder and overrunning the inlet ports therein so that 7 each piston supplies 011 to the next succeeding cylinder on its compression stroke.

2. A lubricating system for supplying lubricant from a plurality of pumps to a plurality of parts to be lubricated, comprising a plurality of :main pump cylinders connected in series and to the parts to'be lubricated, each pump cylinder having an. oil inlet port, a piston reciprocated in each cylinder and overruiming the inlet port therein, an auxiliary pump cylinder having an oil inlet 'port, and a piston reciprocated in said auxiliary pumpcylinder and over-running the inlet-port thereof so as to supply oil to the first of the series of main pump cylinders on its compression stroke, the piston of each main pump cylinder overrunning the inlet port therein so as to supply oil to the next succeeding'main pump cylinder on its compression-stroke.

3. A lubricating system for supplying lubricant from a plurality of pumps to a plurality of parts to be lubricated and connected respectively thereto, comprisin a plurality of main pump cylinders of di erential diameter connected independently to the parts to be lubricated and in series with each other, means for supplying lubricant to each of said main pump cylinders and differential pistons working in said cylinders, one part of each of said differential pistons forcing the lubricant to th parts to be lubri' cated and the other part of each of said differential pistons supplying lubricant to the next succeeding pump cylinder.

4. A lubricating system for supplying lubricant from a plurality of pumps to a plurality of parts to be lubricated and connected respectively thereto, comprisin a plurality of main pump cylinders of di er ential diameter connected independently to the parts to be lubricated and in series with each other, means for suplying lubricant to each of said main pump cylirideis, differential pistons working in said cylinders, one

part of each of said differential pistons forcing the lubricant to the parts to be'lubricated and the other part of each of said differential pistons supplying lubricant to thenext succeeding pump cylinder, an auxiliarypump cylinder, means for'supplying lubricant to said auxiliary pump cylinder and a piston working in said auxiliary pump cylindeland supplying lubricant to the first of said series of main pump cylinders.

In witness whereof we have hereunto set our hands in the presence of two witnesses.

PAUL DAIMLER,

ALBERT HEESS.

Witnesses:

CARL GAERTT'NER, ROBERT UHLAND.

Images