US1969137A

US1969137A - Compressor unit construction

Info

Publication number: US1969137A
Application number: US605682A
Authority: US
Inventors: Maxwell R Karge
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-04-16
Filing date: 1932-04-16
Publication date: 1934-08-07
Anticipated expiration: 1951-08-07

Description

Aug. 7, 1934. M. R. KARGE COMPRESSOR UNIT CONSTRUCTION e IOU INVENTOR Y/7AXWELL Patented Aug. 7, 1934 UNITED STATES COMPRESSOR U'NI'I" CONSITRUCTION 7' Maxwell R. Karge, Brockport, N. Y.

Application April 16, 1932,

Serial nm eoassz 7 Claims. (01.230-212) the construction of refrigerating units and its various component parts and the invention has for one of its objects to provide a construction for such units in which the compressor and condenser are built up from interchangeable parts.

Another object of the invention is to so construct most of the individual parts of the refrigerating unit that they may be used to build up units of different refrigerating capacity.

- Another object of the invention is to provide the compressor cylinder with a novel form of valve which increases the efficiency of the compressor and makes its operation practically noiseless. I

Another object of this invention is to build up a compressor unit in such a manner that the several parts thereof may be fastened together between them which permits sufficient ad ustment between the several parts so as to bring about a perfect alignment between them when these parts are fastened together. I

Another object of this invention is to build up the condenser unit in such a manner that its heads provide a perfect base for the condenser as well as supporting members for the compressor and the motor drive thereof.

' Another object of this invention'is to provide the condenser with rectangularly shaped heads so that angle iron members can be used to connect them and form a rigid base on which the compressor unit is mounted above the condenser.

' Another object of this invention is to so construct the cylinder assembly of the compressor clearance between the piston and t e cylinder may be varied. this invention is to provide the compressor with a cylinder having a combined cylinder head and water j dependent of the cylinder proper.

All these and other objects of this invention will become more readily apparent from the detailed description of the invention, reference being had to the accompanying drawings in which Figure 1 is a side elevation ing unit built up of interchangeable parts, with parts of the condenser of the section.

Figure 2 is a denser; the section of Figure 1.

Figure 3 is an enlarged end elevation of the condenser and a vertical cross section of the ss compressor mounted thereon.

being taken on acket unit in.

unit illustrated in vertical cross section of the conthe line film-23? ing is placed into the annular grooves of the bear- Figure 4 is a horizontal sectional view of the cylinder of the compressor, the section being taken onthe line lac -4a: of Figure 3. Y

Figure 5 is a vertical sectional view of the crank case of the compressor, the section being Figure 6 1s an enlarged vertical sectional view of the upperportion of the cylinder of the compressor illustrating the novel form of valve provided therein; 7 Y 6 Figure '1 is a detail perspective view of the reedvalve of the compressor. v

Figure 8 is a side elevation of a two cylinder compressor built up of interchangeable parts.

In the several figures of the drawings like reference numerals indicatelike parts.

The refrigerating unit forming the subject matter of my present invention comprises the compressor 1, the condenser 2, the trap 3 in the pipe line connecting the compressor with the condenser and'thedriving motor 4 mounted on top' of the condenser 2am connected by a belt 5'with the pulley 'fly wheel'fi of the compressor 1.

Both the compressor and the condenser are mostly built up of parts which are interchangeableandso constructed that they may be used in building up units of different capacities. The illustrated as part of the refrigerating unit is provided with a crank case made up of the cylindrical has its open ends finished 5 off into the 8. These flanges are adapted 9- and 10 rectangular bearing blocks or

ends

11 and 12 respectively. bearing blocks are provided the bearings 13 and'l l respectively which are located so as to be in line with each other when the cylindrical flanges "I and 8 of the cylindrical body of the crank case are nested into the annular grooves 11 and 120i the bearing blocks. The crank shaft 5 15 is suspended between bearings of the bearing blocks before the bearing blocks are fastened together against the cylindrical body of thecrank case. The bearing blocks are fastened against the crank case by the four tie bolts 16, 1'7, 18 and 19 which pass thru suitable holes in the corners of the bearing blocks'on the outside of the cylindrical section of the crankcase and nuts 20 are threaded on' the ends'of the bolts to draw the blocks toward each other against the cylindrical 5 body of the crank case. A suitable yielding packing blocks to'provide an oil proof joint therein.

7 In drawing the bearing :blocks together the nuts 20 are alternately tightened so as to keep the bearfirmly anchored to the crank case.

The cylinder .head

reduced top of the cylinder 21 them.

The cylinder 21 is 6, while the cylinderhead 26 1s atthe same time clamped. in place on the cylinder by means of the Watenjacket and-seal the jacket. 5

This built up construction has the ofusing interchangeable parts nfacture d in'quantities in the vided with a rectangular hole 36 26- is. telescoped over the of the disc valve. only in the case the operation of the compressor at a, high efiiciency.

valve ports 35;

which only gases are compressed .againstlthe ,dlsc

'; the cooling tubes and contain a by the piston and this happens only occasionally. During ninety per cent of the operation of .the compressor the normal operation of the reed valve is sufficient to force the gases into the circulating system, and when moisture is present in the gases, the operation of the reed valve, as governed by the expansion spring 39, will take care of the passing of the gases thru the valve ports in the disc valve. The disc valve may be made of steel but it has been found in practice that an aluminum valve may be used and this will deaden the sound of the contact of the valve with the end of the cylinder during its operation.

The condenser used in the refrigerating unit as illustrated in Figure 1 is also built up of interchangeable members and comprises the cylinder project into the annular the rectangular heads 48 are drawn against the ends of the cylinder by the

tie rods

50, 51, 52 and 53 by means of su'table nuts 50A, a suitable packing being provided in the annular grooves to provide a tight joint between the cylinder and the heads thereof.

The cooling tubes 54 pass and its heads 48 and 49 and are held in place in the heads by means of the bushngs 55 which are threaded to the ends of the cooling tubes and project into pockets which surround the ends of packing which the bushings are tightened thru the cylinder 46 is compressed when on the tubes.

Held clamped to the outside of the heads 48 and 49 are the auxiliary heads 56 and 57 respectively. These heads are drawn together against the heads 48 and 49 with a suitable packing between them by meansof the tie rods 58 which pass thru the center of the cooling tubes. The passage of the condensing water thru the cooling tube is thus restricted by the tie rods but the cooling eificiency of the amount of water which passes therethru is brought to a maximum by keeping the condensing water in contact with the the cooling tubes. Nuts 59 ;are threaded to the ends of the tie rods to draw the auxiliary heads against the heads proper and provide a tight joint between them.

The inside of the auxiliary heads is divided into compartments and auxiliary head 56 is provided with the partitions 60 and 61. An inlet 62 and an outlet 63 is also provided in this head and the cooling water enters due to the partition 60 passes thru the bottom cooling tube into the inside of the auxiliary head 5'7. This head has but one partition 64 in the middle of it so that the cooling water entering the lower half of the auxiliary head is directed back to the first auxiliary head thru the lower two of the central cooling tubes. The condensing water thus reenters the first auxiliary head above the partition 60 and is directed back to the second auxiliary head thru the upper two of the central cooling tubes. This brings the condensing water above the central partition of the auxiliary head 5'7 from where it flows back to the upper compartment of the first auxiliary head thru the upper cooling tube and then out of this auxiliary head thru the pipe 65 into the water jacket of the compressor 1.

On top of the condenser on a suitable supporting plate 66 is mounted the base 67 of the driving motor 4 and this motor, as above described, drives the compressor by means of the belt 5.

The compressor is connected with the cylinder said cylindrical flanges nest into 45 by means of a pipe line 68 in which the trap 69 is located. This trap comprises a tubular member which is connected to the pipe line by the nipples '70 and 11. In the tubular member is mounted the stand pipe '72 which forms a continuation of the portion of the pipe line leading from the trap so that all gases have to pass thru this stand pipe in their passage to the condenser. In the top of the stand pipe '72 are provided one or more inlets '73 and on top of the stand pipe is mounted a cap '74 with a flange '75 extending to within a short distance of the inside periph-. ery of the tubular member. Any oil entering the trap is thus forced against the inner wall of the trap and collects in the bottom of the trap while the gases are free to pass around the cap '74 and its flange '75 and enter directly into the inlet '73 of the stand pipe '72. In the bottom of the condenser is provided the outlet 76 to which is connected the cooling system fed by the refrigerating unit. The return from the cooling system is connected to the inlet 7'7 in the side of the cylinder of the compressor 1.

In Figure 8, 1 have illustrated the manner in which a two cylinder compressor is built up from the interchangeable parts. In this case a longer central cylindrical body 80 is used for the crank; case, while a double cylinder head 81 is mounted over the two cylinders. The cylinder head and cylinders are fastened together and anchored to the crank case by means of the three

tie bolts

82, 83 and 84. Compressors with three or more cylinders may be built up in the same manner as the two cylinder compressor.

The rectangular heads 48 and 49 of the condenser provide a perfect base for the condenser at each end thereof and at the same time serve as supporting members for the compressor and motor drive. For this latter purpose the heads have the channel member '70 fastened thereto in such a manner that the sides of this member embrace the upper portion of the heads and provide an extremely rigid and strong connection between them on which the compressor and motor drive is mounted. 120

I claim: 1. In a compressor construction the combinahaving an opening therein, a

tion of a crank case cylinder having one end thereof nested into said opening, a cylinder head, a water jacket sur- 125 rounding said cylinder head, said cylinder head with its water jacket being telescoped over the top of said cylinder, and tie bolts anchored in said crank case and passing thru said water jacket to simultaneously fasten said cylinder head to said cylinder and said cylinder to said crank casing.

2. In a compressor construction the combination of a crank case having an opening therein,

a cylinder having one end thereof nested into said opening, a cylinder head telescoped over the top 135 of said cylinder, and tie bolts anchored in said crank case and passing thru said cylinder head to simultaneously fasten said cylinder head to said cylinder and said cylinder to said crank casing, a water jacket formed in said cylinder head with one end open and the other closed, a cover for the open end and means carried by said tie rods to clamp said cover over the open end of said water jacket.

3. In a compressor construction the combination of a crank case comprising a central hollow member, cylindrical flanges formed on the ends of said hollow member, heads having annular grooves provided on the inside thereof to have said grooves,

in line with each other. a 4. In a compressor the combination of a cylinder, a; comblned cylinder head and water jacket a head at each end of said shell, each head hav- 180 with the center of said'shellr- *7. a, compressor, construction the combinae tion of a crank case comprising an open ended with the center of said shell, each of said heads a MAXWELL R. KARGE..:-.