Claims
- 1. A compressor having a pulsating reducing means, said compressor comprising:
- a cylinder block having a plurality of cylinder bores therein;
- a plurality of pistons slidable in said cylinder bores;
- means connected to said pistons for driving said pistons with a predetermined phase difference between the strokes of the respective pistons;
- a valve plate on one end of said cylinder block and having a plurality of sets of at least one suction hole and at least one discharge hole, one set being positioned over the end of each of said cylinder bores;
- a suction valve in each suction hole for opening and closing said suction hole;
- a discharge valve in each discharge hole for opening and closing said discharge hole;
- a hollow cylinder head on said one end of said cylinder block over said valve plate, said cylinder head having partitioning means for partitioning the inside of said cylinder head into a first low pressure chamber, a second low pressure chamber and a high pressure chamber, said suction holes opening into said second low pressure chamber, said discharge holes opening into said high pressure chamber and said cylinder head having an inlet opening opening into said first low pressure chamber and a discharge opening opening out of said high pressure chamber, said partitioning means having suction communicating holes between said first low pressure chamber and said second low pressure chamber, each suction communicating hole being in a non-overlapping laterally offset position, relative to the axes of the two closest adjacent cylinder bores, with respect to said suction holes and at an equal distance from the two closest adjacent suction holes.
- 2. A compressor as claimed in claim 1 in which said partitioning means is a partitioning plate fixed to the inner surface of the circumferential wall of said cylinder head.
- 3. A compressor as claimed in claim 1 in which said cylinder head is constituted by a first cylinder head member and a second cylinder head member between said first cylinder head member and said cylinder block and constituting said partitioning means.
- 4. A compressor having pulsating reducing means, said compressor comprising:
- a cylinder block having a plurality of cylinder bores therein;
- a plurality of pistons slidable in said cylinder bores;
- means connected to said pistons for driving said pistons with a predetermined phase difference between the strokes of the respective pistons;
- a valve plate on one end of said cylinder block and having a plurality of sets of at least one suction hole and at least one discharge hole, one set being positioned over the end of each of said cylinder bores;
- a suction valve in each suction hole for opening and closing said suction hole;
- a discharge valve in each discharge hole for opening and closing said discharge hole;
- a hollow cylinder head on said one end of said cylinder block over said valve plate, said cylinder head having partitioning means for partitioning the inside of said cylinder head into a first low pressure chamber, a second low pressure chamber and a high pressure chamber, said suction holes opening into said second low pressure chamber, said discharge holes opening into said high pressure chamber, said partitioning means having suction communicating holes between said first low pressure chamber and said second low pressure chamber, each suction communicating hole being in a non-overlapping laterally offset position, relative to the axes of the two closest adjacent cylinder bores, with respect to said suction holes and at an equal distance from the two closest adjacent suction holes, said cylinder head having an inlet opening opening into said first low pressure chamber and a discharge opening opening out of said high pressure chamber, said discharge opening being at an equal distance from all of said discharge holes.
- 5. A compressor as claimed in claim 4 in which said suction communicating holes are elongated in the circumferential direction of said cylinder head.
Priority Claims (2)
Number |
Date |
Country |
Kind |
60-29246[U] |
Mar 1985 |
JPX |
|
60-29245[U] |
Mar 1985 |
JPX |
|
Parent Case Info
This application is a continuation-in-part of applications Ser. Nos. 831,445 and 831,446, both filed Feb. 20, 1986, and now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (2)
Number |
Date |
Country |
47687 |
Apr 1981 |
JPX |
131380 |
Aug 1983 |
JPX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
831445 |
Feb 1986 |
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