US1748531A - Refrigerating apparatus - Google Patents

Description

Feb. 25, 1930. TfiQUP 1,748,531

REFRIGERATING APPARATUS Filed May 2, 1925- v a? 3732 E 42 3 V38 Patented Feb. 25, 1930 UNITED STATES PATENT OFFICE.

GEORGE M. TROUP, OF DAYTON, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, 1'0

IRIGDAIRE CORPORATION, A

CORPORATION OF DELAWARE REFRIG ERATING APPARATUS Application filed May 2,

The present invention relates to valves and particularly to outlet valves for compressors. It is among the objects of the present invention to simplify the construction, to re- 5 duce the cost of manufacture, to provide for the quiet operation, and to improve the general construction of the above type of valve.

Further objects and advantages of the resent invention will be apparent from the ollowing description, reference being had to the accompanying drawings, wherein a preferred form of the present invention is clearly shown.

In the drawings:

Fig. 1 is a top plan view of the improved valves showing same attached to a valve plate of a compressor. V

Fig. 2 1s a sectional view of a compresso showing the valves, the section being taken on line 2-2 of Fig. 1, and

Fig. 3 is an enlarged fragmentary sectional view of the invention.

Referring to the drawing, a compressor 20 is shown provided with two cylinders 21 and 22 which receive two pistons 23 and 24;. The head of each piston is provided with inlet valve 25 throu h which fluid passes from the crank case 0% the compressor into the compression chamber of the cylinder. The top of the cylinders 21 and 22 carries a valve plate 27 -which in turn carries a cylinder head 28. The valve plate 27 is provided with ports 29 and 30 and valve seats 31 and 32 for the cylinders 21 and. 22, respectively.

The plate 27 is provided with recesses 33 surrounding the seats 31 and 32.

The valves for the seats include a leaf spring 35 which extends beyond the valve seats 31 and 32. Buttons 36 and '37 constructed of non-metallic vibration-absorbing material such as bakelized Paper or the like, are interposed between lea spring 35 and a second leaf spring 39, and are of such length as to cause the spring 39 to be deflected to tend to hold the spring 35 upon the seats 31 and 32. A plate 40 is interposed between springs 35 and 39 and is perforated as at .0 to receive buttons 36 and 37, and provides a guide for said buttons. The leaf springs 35 1925. Serial No. 27,378.

spring 35 and guide plate 40 adjacent the middle of the spring to provide a clearance between the plate and theend of the spring so that the spring may function as a flapper valve. The plate likewise serves as a-stop for limiting the amount of opening of the valve.

The improved valve is relatively simple in construction and, uiet in operation. A flat leaf spring functions as a valve and is held against its seat by a second flat leaf spring. If during the operation of the valve, spring'35 should separate from the buttons 36 and 37 or should the buttons separate from spring 39, there will be substantially no noises created by the re-engagement of the elements, because the buttons are constructed of material, such as bakelized paper which when engagedby said springs will a sorb impacts and vibrations and consequently will produce substantially no noise.

While the form of embodiment of the present invention as herein disclosed, constitutes a preferred form, it is to be understood that other formsmight be adopted, all coming within the scope of the claims whioh follow.

What is claimed is as follows;

1. Valve apparatus comprising, in combination, a valve seat, a'flap valve coogerating with said seat, a spring, a member isposed between said valve and spring whereby said valve is normally held on the seat through the action of said sprin and a guide for said member, interposed lietween the valve and. spring.

2. Valve apparatus comprising, in combination, a valve seat, a flap valve cooperating with said seat, a spring, a member dispose between said valve, and'spring whereby said valve is normally held on the seat through the action of said spring, a'guide for said memher, and means common to said valve and spring for maintaining said valve in operativerelation with the seat andfor maintainin the spring in operative relation with the v ve.

3. Valve apparatus comprising, in combination, a Valve seat, a flap valve cooperating with said seat, a spring, a member isposed between said valve and spring whereby said valve is normally held on the seat through the action of said spring, a guide for said member, and a single means for maintaining said valve in operative'relation with the seat and for maintaining said member in operative re lation with the valve and spring.

' 4. Valve apparatus comprising, in combination, a valve seat, a flap va 'e cooperating with said seat, a spring, a member disposed between said valve and spring whereby said valve is normally held on the seat through the action of said spring, a. guide for said member, and means common to said spring and guide for maintaining said member in operative relation with the valve and for maintaining said spring in operative relation with the memberthe seat through the action of said spring,

a guide for said member, and means common to said valve and to said spring and to said guide for maintaining said valve and said spring and said member in operative relation with one another.

nation, a plurality of valve seats, valves comprisin a leaf spring covering said seats, a secon leaf spring, members disposed between each spring adjacent the valve seats whereby the first leaf spring is normally held on the seats through the action of the second leaf spring, and a guide for said members.

7. Valve apparatus comprising, in combination, a plurality of valve seats, valves comprising a leaf spring covering said seats, a second leaf spring, members disposed between each spring adjacent the valve seats whereby the first leaf spring is normally held on the seats through the action of the second leaf spring, a guide for said members, and means for maintaining the leaf springs and guide in holdin cooperative relation.

8. Valve apparatus comprising, in combination, a valve seat, a flap valve cooperating with said seat, a spring, a vibration-absorbing member disposed between said valve and spring whereby said valve is normally held on the seat through the action of said spring,

and a guide for said member.

9. Valve apparatus comprising in combination, a valve seat, a flap valve cooperating with the seat, a spring, a thrust member between the valve and spring for yieldin ly the valve against the seat, 811C? a guide or the thrust member.

10. Valve apparatus comprising in combination, a valve seat, a flap valve cooperating with the seat, a spring, a thrust member between the valve and spring for yieldingly holding the valve againstthe seat, means for maintaining the valve in operative relation with the seat, and a guide for the thrust member formed in said means.

11. Valve apparatus comprising in combination, avalve seat, a flap valve cooperating with the seat, a spring, a thrust member between the valve and spring for yieldingly holding the valve against the seat, a spacing means between the spring and valve, said spacing means maintaining the valve in operative relation with the seat, and a guide for the thrust member formed inthe spacing means.

12. Valve apparatus comprising in combination, a valve seat, a flap valve cooperating with the seat, a spring, a thrust member between the valve and spring for yieldingly holding the valve against the seat, a stop for limiting the movement of the valve, and a guide for the thrust member formed in said sto 1%. Valve apparatus comprising in combination, a valve seat, a flap valve cooperating with the seat, a spring, a thrust member between the valve and spring for yieldingly holdingthe valve against the seat, and spacing means between the valve and the spring, said'spacing means providing a stop for 11miting the movement of the valve. 6. Valve apparatus comprising, in combi- In testimony whereof I hereunto aiiix my

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