KR101249554B1 - A swash plate type compressor - Google Patents

Abstract

The present invention relates to a swash plate compressor. In the present invention, a plurality of cylinder bores 4a are formed inside the front and rear cylinder blocks 4 and 4 '. The suction muffler chamber 10 for reducing the pulsation and noise of the refrigerant to be sucked is formed outside the front and rear cylinder blocks 4 and 4 '. An oil hole 112 is formed in the front and rear cylinder blocks 4 and 4 ′ to communicate the suction muffler chamber 10 and the swash plate chamber 23 formed in the front and rear cylinder blocks 4 and 4 ′. According to the present invention having such a configuration, the supply of oil from the suction muffler chamber 10 to the swash plate chamber 23 can proceed smoothly, there is an advantage that the lubrication and cooling of the drive unit of the compressor can be sufficiently achieved.

Description

Swash plate type compressor {A swash plate type compressor}

The present invention relates to a compressor, and more particularly, to a swash plate type compressor having a configuration that can effectively lubricate the inside of the compressor without oil stagnated in the inside of the compressor.

The compressor used in the automotive air conditioning system sucks the gaseous refrigerant evaporated from the evaporator, compresses the refrigerant to a high temperature and high pressure state that is easy to liquefy, and delivers the refrigerant to the condenser.

In such a compressor, there are a reciprocating type that actually compresses the refrigerant and a reciprocating type that performs compression while reciprocating, and a rotary type that performs compression while rotating. The reciprocating type includes a crank type for transmitting the driving force of the driving source to a plurality of pistons using a crank, a swash plate type for transmitting a swash plate to a drive shaft provided with a swash plate, and a wobble plate type using a wobble plate. Rotary types include rotary rotary axes with vane rotary vanes, scrolling with rotary scrolls and fixed scrolls.

1 is a cross-sectional view showing the configuration of a general swash plate type compressor, and FIG. 2 is a longitudinal sectional view of a cylinder block of a general swash plate type compressor. As shown in these figures, the swash plate compressor 1 according to the present invention includes front and rear cylinder blocks 4 and 4 'having a plurality of cylinder bores 4a formed therein, and the front and rear cylinder blocks 4 and 4, respectively. And a front head 2 and a rear head 27 which are respectively coupled to the front and rear of 4 'to form discharge chambers 2a and 27a and suction chambers 2b and 27b. The front head 2, the front and rear cylinder blocks (4, 4 ') and the rear head 27 are combined by a plurality of bolts (B) to form an overall compressor.

The front head 2 has a substantially cylindrical shape, and the discharge chamber 2a and the suction chamber 2b are formed therein. The discharge chamber 2a and the suction chamber 2b may be selectively communicated with the cylinder bore 4a of the front cylinder block 4, respectively. That is, through the valve assembly 14 provided between the front head 2 and the front cylinder block 4, the discharge chamber 2a and the suction chamber 2b are each cylinder bore based on the pressure difference of the refrigerant. It is formed to be able to communicate with (4a).

And as can be seen with reference to Figure 2, the front cylinder block 4 and the rear cylinder block 4 'is formed with a plurality of cylinder bores (4a) formed in a direction parallel to the drive shaft (24). . The cylinder bores 4a have a cylindrical shape and a plurality of cylinder bores are arranged in a circle. The cylinder bore 4a is a space in which the refrigerant is compressed by the piston 30 linearly reciprocating therein.

The muffler portion 5 is formed outside the front and rear cylinder blocks 4 and 4 '. That is, the muffler portion 5 is formed by the partition wall 5a with the swash plate chamber 23. In the center of the front and rear cylinder blocks 4 and 4 ′, a shaft hole 6 is formed to rotatably support the driving shaft 24. In addition, a plurality of communication holes 8 are formed at a portion corresponding to the cylinder bore 4a and the shaft hole 6. The communication hole 8 is formed in the front and rear cylinder blocks (4, 4 ') to reduce the overall weight of the product, it may be formed in the portion except the cylinder bore (4a) and the shaft hole (6).

The suction muffler chamber 10 is formed inside the muffler portion 5 between the front and rear cylinder blocks 4 and 4 '. The suction muffler chamber 10 is a portion through which the refrigerant sucked into the front and rear cylinder blocks 4 and 4 'passes. The suction muffler chamber 10 serves to reduce pulsation and noise of the refrigerant sucked into the cylinder bore 4a. A communication hole 11 connecting the suction muffler chamber 10 and the swash plate chamber 23 is formed. The communication hole 11 is formed at a portion spaced apart from the refrigerant flowing into the suction muffler chamber 10, thereby reducing pulsation and noise. The refrigerant passing through the suction muffler chamber 10 flows into the swash plate chamber 23 through the communication hole 11 and then flows into the suction chambers 2b and 27b through separate passages (not shown).

Between the front head 2 and the front cylinder block 4, there is provided a valve assembly 14 for controlling the flow of refrigerant between the suction chamber 2b and the discharge chamber 2a and the cylinder bore 4a. . That is, the valve assembly 14 controls the refrigerant flow from the suction chamber 2b to the cylinder bore 4a and the refrigerant flow from the cylinder bore 4a to the discharge chamber 2a, respectively.

The valve assembly 14 includes a valve plate 15 each having a discharge hole 15a and a suction hole 15b for the flow of refrigerant, and suction leads 16 provided on both side surfaces of the valve plate 15, respectively. ) And a discharge lead 17. The valve plate 15 is generally formed of a metallic material. The valve plate 15 has discharge holes 15a and suction holes 15b formed at positions corresponding to the respective cylinder bores 4a to allow the refrigerant to flow. Zinc (Zn) is plated on the valve plate 15. This is to prevent corrosion of the valve plate 15 and is plated on the entire surface of the valve plate 15.

Meanwhile, the suction lead 16 and the discharge lead 17 are elastically deformable and elastically deformed according to the internal pressure of the cylinder bore 4a to open and close the suction hole 15b and the discharge hole 15a. The refrigerant is sucked into the suction chambers 2b and 27b or the refrigerant compressed in the cylinder bore 4a is discharged to the discharge chambers 2a and 27a.

The head gasket 18 is provided on the outer side of the valve plate 15, that is, the valve plate 15 on the front head 2 and the rear head 27. The head gasket 18 has a substantially disc shape, and serves to prevent leakage of the refrigerant discharged between the front head 2 and the rear head 27 and the valve plate 15. The head gasket 18 is formed with a retainer 19 integrally with the head gasket 18. The retainer 19 is a portion for preventing the discharge lead 17 from being excessively elastically deformed toward the inside of the discharge chamber 2a by the discharge pressure of the refrigerant. The retainer 19 extends radially toward the outer circumferential surface of the head gasket 18 of the head gasket 18. The retainer 19 is formed bent toward the discharge chamber 2a by a predetermined angle.

In addition, a suction gasket 20 is provided on an inner surface of the valve plate 15, that is, the front cylinder block 4 and the rear cylinder block 4 ′ which are opposite to the front head 2 and the rear head 27. The suction gasket 20 has a substantially disc shape, and serves to prevent leakage of refrigerant from being sucked between the front head 2 and the front cylinder block 4.

On the other hand, the swash plate chamber 23 is formed inside the front cylinder block 4 and the rear cylinder block 4 '. The swash plate chamber 23 is a space in which the swash plate 25 installed on the drive shaft 24 is rotatable.

A drive shaft 24 for rotating the swash plate 25 is installed through the center of the front head 2, the front cylinder block 4, and the rear cylinder block 4 '. An approximately disc shaped swash plate 25 is inclined at a predetermined angle to the drive shaft 24 on the drive shaft 24.

A shoe 26 is provided between the swash plate 25 and the piston 30. The shoe 26 is provided between the swash plate 25 and the piston 30 so that the rotational movement of the swash plate 25 is transmitted to the piston 30 so that the piston 30 is linearly reciprocated.

As such, the piston 30 linearly reciprocating through the shoe 26 has a substantially cylindrical shape corresponding to the inside of the cylinder bore 4a, and both ends of the front cylinder block 4 and the rear cylinder block 4 ', respectively. It is installed in the cylinder bore 4a of the) to compress the refrigerant supplied into the cylinder (4a).

The rear head 27 is mounted on one surface of the rear cylinder block 4 '. The rear head 27 is provided with a discharge chamber 27a and a suction chamber 27b. The discharge chamber 27a and the suction chamber 27b communicate with each other with the cylinder bore 4a formed in the rear cylinder block 4 ', respectively. In addition, the valve plate 15 is installed between the rear cylinder block 4 'and the rear head 27 as described above.

In addition, a head gasket 18 is provided on the outer surface of the valve plate 15, that is, the rear head 27 side, and the high pressure refrigerant discharged between the rear head 27 and the valve plate 15 leaks. Prevention is also as described above. In addition, the suction gasket 20 is provided on one surface of the valve plate 15 facing the rear cylinder block 4 '. The suction gasket 20 serves to prevent the refrigerant from leaking between the rear head 27 and the rear cylinder block 4 '.

The operation of the compressor having such a structure will be described. As the drive shaft 24 is rotated by a driving force transmitted from the outside, the swash plate 25 is rotated together with the drive shaft 24. Rotation of the swash plate 25 allows the piston 30 to make a linear reciprocating motion inside the cylinder bore 4a.

At this time, as the drive shaft 24 rotates, the refrigerant in the suction chambers 2b and 27b is sucked into the cylinder bore 4a, respectively. As the refrigerant passes through the suction muffler chamber 10 before entering the suction chambers 2b and 27b, pulsation and noise are reduced. For reference, the refrigerant is sucked into the cylinder bore 4a when the piston 30 moves from the bottom dead center to the top dead center in the corresponding cylinder bore 4a while the pressure inside the cylinder bore 4a is low. to be. As such, when the refrigerant is sucked into the cylinder bore 4a, the piston 30 moves in the direction of compressing the sucked refrigerant in the corresponding cylinder bore 4a.

When the refrigerant is compressed in the cylinder bore 4a, the pressure inside the cylinder bore 4a becomes relatively high and the refrigerant is discharged to the discharge chambers 2a and 27a. The refrigerant discharged into the discharge chambers 2a and 27a is transferred to the condenser (not shown) through the refrigerant discharge port.

However, the above-described conventional techniques have the following problems.

The refrigerant compressed in the compressor to circulate the freezing cycle is mixed with oil for lubrication and cooling of the swash plate compressor (1). The oil is introduced into the cylinder bore 4a in a state of being mixed with the refrigerant, and comes into contact with the driving units such as the driving shaft 24 and the swash plate 25 to help lubrication and cooling of the swash plate compressor 1.

As shown in FIG. 2, the refrigerant described above passes through the suction muffler chamber 10 and enters the suction chambers 2b and 27b, and is disposed on a portion (part A) of the bottom surface of the suction muffler chamber 10. Oil buildup can occur. As shown in FIG. 2, the portion A, which may be referred to as a corner portion of the suction muffler chamber 10, is concave so that oil may be easily accumulated.

As such, when oil is accumulated on the bottom surface of the suction muffler chamber 10 such as the portion A, the oil may not perform the lubrication function normally. Therefore, the parts such as the drive shaft 24 and the swash plate 25 may be excessive. There is a problem that the swash plate compressor 1 is not smoothly driven. In other words, there is a disadvantage in that the cooling and lubrication of parts driven inside the compressor, which is an original function of oil, are not sufficiently performed.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to provide a swash plate compressor having a smooth circulation of oil in order to increase the lubrication and cooling of the driving unit of the swash plate compressor.

Another object of the present invention is to provide a swash plate compressor which is configured to be able to supply sufficient oil for lubrication and cooling to the swash plate chamber, in particular during the initial operation of the compressor.

Technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

According to the present invention for solving the above object, the front and rear cylinder block is formed a plurality of cylinder bores therein; A suction muffler chamber formed outside the front and rear cylinder blocks to reduce pulsation and noise of the refrigerant to be sucked; A drive shaft rotatably installed to penetrate the front and rear cylinder blocks, and receives power required to compress the refrigerant from a drive source; A swash plate which is inclined to the driving shaft and rotates in a swash plate chamber formed in the front and rear cylinder blocks; And a piston for linearly reciprocating the cylinder bore and compressing the refrigerant according to the rotation of the swash plate. The front and rear cylinder block is characterized in that the oil hole for communicating the suction muffler chamber and the swash plate chamber is formed.

And according to the embodiment, the oil hole is formed in the upper portion of the partition wall partitioning the suction muffler chamber and the swash plate chamber.

According to another embodiment of the present invention, an oil suction member capable of absorbing oil and being elastically deformable by the pressure of the refrigerant is provided inside the suction muffler chamber.

In this embodiment, the oil suction member is installed in a state of blocking the oil hole, it is preferable to open the oil hole while being compressed by the pressure of the refrigerant to be sucked.

According to the present invention, it can be seen that the supply of oil from the suction muffler chamber to the swash plate chamber can proceed smoothly, so that lubrication and cooling of the drive unit of the compressor can be sufficiently achieved. This substantially means that the performance and operational reliability of the compressor can be sufficiently increased by smooth lubrication and cooling during operation of the compressor.

In addition, according to the present invention, the oil-containing member is capable of supplying sufficient oil from the suction muffler chamber to the swash plate chamber, especially during the initial operation of the compressor. Therefore, it is expected that the initial lubrication action by supplying sufficient oil in the initial operation of the compressor can proceed very smoothly.

1 is a longitudinal cross-sectional view showing the configuration of a typical fixed displacement swash plate compressor.
2 is a cross-sectional view of a typical fixed displacement swash plate compressor.
3 is a cross-sectional view of a fixed displacement swash plate compressor according to a first embodiment of the present invention.
4 is a view of a fixed displacement swash plate compressor according to a second embodiment of the present invention, (a) is a cross-sectional view showing a state before the refrigerant is sucked in, (b) a cross-sectional view showing a state in which the refrigerant is sucked.

Hereinafter, a preferred embodiment of the swash plate compressor according to the present invention will be described in detail with reference to the accompanying drawings.

3 is a longitudinal sectional view of the cylinder block of the swash plate compressor according to the present invention. Since the swash plate compressor according to the present invention has the gist of the cylinder block, the structure is the same as the swash plate compressor shown in FIG. 1 except for the cylinder block. Therefore, in the embodiment of the present invention, the same components as in the conventional swash plate compressor will be described using the reference numerals of the prior art.

The swash plate compressor 1 according to the present invention is coupled to the front and rear cylinder blocks 4 and 4 'having the cylinder bore 4a formed therein, and to the front and the rear of the front and rear cylinder blocks 4 and 4', respectively. The front head 2 and the rear head 27 which form the discharge chamber 2a, 27a and the suction chamber 2b, 27b are comprised. The front head 2, the front and rear cylinder blocks 4, 4 'and the rear head 27 are coupled by a plurality of bolts (B).

The front and rear cylinder blocks 4 and 4 'are coupled to each other to form two swash plate chambers 23 therebetween. A plurality of cylinder bores 4a are formed in the front and rear cylinder blocks 2 and 2 ', respectively. In this embodiment, a total of five cylinder bores 4a are formed and they are arranged to form a circle. The number of pistons 30 installed in the cylinder bore 4a may vary. The cylinder bore 4a has a substantially cylindrical shape, and the piston 30 is installed in the cylinder bore 4a to enable a linear reciprocating motion.

In the center of the front and rear cylinder block (4, 4 ') is formed a shaft hole (6) for installing the drive shaft (24). The shaft hole 6 is formed by penetrating the front and rear cylinder blocks 4, 4 'in front and rear. On the outside of the front and rear cylinder blocks 4, 4 ', a muffler portion 5 for forming the suction muffler chamber 10 therein is integrally formed.

In addition, a plurality of communication holes 8 are formed at a portion corresponding to the cylinder bore 4a and the shaft hole 6. The communication hole 8 is formed in the front and rear cylinder blocks (4, 4 ') to reduce the overall weight of the product, it may be formed in the portion except the cylinder bore (4a) and the shaft hole (6).

The suction muffler chamber 10 formed inside the muffler section 5 is a portion through which the refrigerant sucked into the suction chambers 2b and 27b of the front and rear cylinder blocks 4 and 4 'passes. The suction muffler chamber 10 serves to reduce pulsation and noise of the refrigerant. That is, the pulsation and noise are reduced while the refrigerant passes through the suction muffler chamber 10, and the refrigerant flows into the suction chambers 2b and 27b. The suction muffler chamber 10 is formed by the partition wall 5a between the swash plate chamber 23 as described in the related art.

In the present exemplary embodiment, the suction muffler chamber 10 is formed in the swash plate compressor 1 and described with reference to the center. However, according to the configuration of the swash plate compressor 1, the discharge muffler as well as the suction muffler chamber 10 are described. Seals (not shown) may also be formed.

The oil mixed with the coolant is mostly caused by the pooling phenomenon during the suction of the coolant. Of course, the oil may be accumulated while passing through the discharge muffler chamber, but since oil is already sucked into the cylinder bore 4a and is in contact with the drive shaft 24 and the swash plate 25, the oil flowing into the discharge muffler chamber has no oil. It may be said that there is little. Therefore, this embodiment focuses on the swash plate type compressor 1 in which the said suction muffler chamber 10 was formed.

The refrigerant introduced into the suction muffler chamber 10 from the refrigerant inlet port 3 is introduced into the suction chambers 2b and 27b via the swash plate chamber 23 through the communication hole 11. The suction muffler chamber 10 has an oil hole 112 communicating with the suction muffler chamber 10 and the swash plate chamber 23. The cylinder bore 4a is provided at the front and rear sides of the front and rear cylinder blocks 4 and 4 ', respectively, and a swash plate chamber 23 is formed therebetween, and the oil hole 112 is the swash plate chamber 23. ) Is formed through the front and rear cylinder blocks (4, 4 ') in communication with. That is, the oil hole 112 is formed to connect the swash plate chamber 23 in the suction muffler chamber 10. The oil hole 112 is in communication with the swash plate chamber 23 because the components responsible for driving the swash plate compressor 1 are located on the swash plate chamber 23 side.

In more detail, when the oil hole 112 is formed to communicate with the swash plate chamber 23, oil that may accumulate in the suction muffler chamber 10 while passing through the suction muffler chamber 10 is stored in the swash plate chamber 23. It can be injected into the side. Therefore, the oil is in contact with the components responsible for driving the drive shaft 24, the swash plate 25, the piston 30, and the like located in the swash plate chamber 23 to function as a lubricant normally. The oil hole 112 is formed on the side opposite to the communication hole (11). That is, the oil hole 112 is formed at one side and the communication hole 11 is formed at the other side with respect to the refrigerant inlet port 3.

The oil hole 112 is formed through a process of cutting the plane where the front and rear cylinder blocks 4, 4 'meet. That is, one surface of the front cylinder block 4 or the rear cylinder block 4 'is formed by processing the front and rear cylinder blocks 4 and 4'. Of course, the oil hole 112 may be formed to penetrate a portion forming the bottom surface of the suction muffler chamber 10 in the front and rear cylinder blocks 4 and 4 '.

Hereinafter will be described in detail the operation of the swash plate compressor according to the present invention having the configuration as described above. First, as the drive shaft 24 rotates by the driving force transmitted from the engine, the swash plate 25 is rotated together with the drive shaft 24. Rotation of the swash plate 25 allows the piston 30 to make a linear reciprocating motion inside the cylinder bore 4a.

At this time, the pulsation and noise are reduced while the refrigerant passes through the suction muffler chamber 10, and the refrigerant flows into the suction chambers 2b and 27b through the communication hole 11 from the suction muffler chamber 10. As the drive shaft 24 rotates, the refrigerant in the suction chambers 2b and 27b is sucked into the cylinder bore 4a, respectively.

As such, when the refrigerant is delivered to the cylinder bore 4a, the piston 30 of the corresponding cylinder bore 4a moves in the direction of the valve assembly 14, and compression of the refrigerant occurs. When the refrigerant is compressed in the cylinder bore 4a, the pressure inside the cylinder bore 4a becomes relatively high and the refrigerant is discharged to the discharge chambers 2a and 27a. The refrigerant discharged into the discharge chambers 2a and 27a is transferred to the condenser (not shown) through the refrigerant discharge port.

Oil mixed in the refrigerant flowing into the suction muffler chamber 10 during the operation of the swash plate compressor 1 described above may be accumulated in a part of the suction muffler chamber 10. However, in the present invention, by forming an oil hole 112 in communication with the swash plate chamber 23 in the suction muffler chamber 10, the oil can be introduced into the swash plate chamber 23 side. Therefore, the parts responsible for driving the drive shaft 24, the swash plate 25, the piston 30, and the like may be lubricated by oil and driven more smoothly.

Next, another embodiment of the present invention will be described with reference to FIG. 4. As shown, according to the present embodiment, the suction muffler chamber 10 inside the muffler portion 5 formed outside the front and rear cylinder blocks 4 and 4 'may contain oil and be contained therein. An oil suction member 114 is installed. The oil suction member 114 is formed of a material that can be elastically deformed, for example, a sponge, and can hold and hold oil therein. In addition, the oil suction member 114 may be selected from a material having heat resistance, in consideration of being at a high temperature during operation of the compressor. For example, the oil suction member 114 may be formed of a heat resistant polyurethane-based material.

The oil suction member 114 is installed at a portion adjacent to the oil hole 112. In the illustrated embodiment, the oil hole 112 is formed in the corner portion of the suction muffler chamber 10 substantially in contact with the oil hole 112, which prevents oil from stagnating in this portion. To circulate from the suction muffler chamber 10 to the swash plate chamber (23). Accordingly, the oil suction member 114 is installed at a corner portion of the suction muffler chamber 10 where the oil can stagnate, and the oil suction member 114 elastically decomposes during suction of the refrigerant. It is preferable to be installed so that it can be supplied through the oil hole (112).

The oil suction member 114 may be installed to block the oil hole 112 in the suction muffler chamber 10. That is, the oil suction member 114 is preferably installed to block the oil hole 112 in the upstream side of the flow of the refrigerant. In this state, when the refrigerant flows into the suction muffler chamber 10, the oil contained therein is exposed while elastically deforming to the outside (the corner of the suction muffler 10 or the direction in which the oil hole 112 is opened) by the pressure. And at the same time to be supplied to the oil hole 112.

Next, the operation of the present embodiment will be described. Since the compressor is operated based on the driving force in the engine as described above, a detailed description of the overall operation of the compressor will be omitted.

When the compressor is operated, the refrigerant to be compressed is sucked into the cylinder bore 4a. At this time, the refrigerant is supplied from the suction muffler chamber 10 of the muffler unit 5 to the swash plate chamber through the oil hole 112 and then to the suction chambers 2b and 27b, and then the valve assembly (2b, 27b) in the valve assembly ( 14 is supplied to the cylinder bore 4a. At this time, as shown in (b) of FIG. 4, when the refrigerant enters the suction muffler chamber 10 from the outside, the oil suction member 114 is compressed to the downstream side of the refrigerant by the suction pressure of the refrigerant. In this case, the direction in which the oil suction member 114 is compressed may be substantially the corner direction or the direction in which the oil hole 112 is opened in the suction muffler chamber 10.

When the oil suction member 114 is compressed in this way, the oil contained therein comes out. At the same time, the oil from the oil suction member 114 enters the oil hole 112. The oil entering into the oil hole 112 will come out of the swash plate chamber 23 which is the outlet of the oil groove 112. In this way, when the oil is supplied to the swash plate chamber 23 through the oil hole 112, the oil may be supplied to the internal parts of the compressor being driven, thereby performing lubrication and cooling of the internal parts in operation.

The oil suction member 114 is in a state of absorbing and accumulating oil accumulated in the suction muffler chamber 10 in a stationary state. Therefore, the oil is elastically deformed by the pressure of the refrigerant sucked into the suction muffler chamber 10 when the compressor is initially driven to release the oil contained therein, and the oil can be supplied to the swash plate chamber 23 along the oil hole 112. It is composed. Therefore, according to the present embodiment, since the oil can be sufficiently supplied into the swash plate chamber 23 during the driving of the compressor, and especially during the initial driving of the compressor, an advantage of maximizing the lubrication of the driving part is expected.

As described above, it can be seen that the present invention has a basic technical theme that forms an oil hole 112 that communicates the suction muffler chamber 10 and the swash plate chamber 23. According to the embodiment, by installing the oil suction member 114 formed of an elastic material capable of containing oil near the oil hole 112, a sufficient amount of oil may be provided during the initial driving. ) Can be supplied.

Within the scope of the basic technical spirit of the present invention as described above, it is obvious that various modifications are possible to those skilled in the art, and the protection scope of the present invention should be interpreted based on the appended claims. It is obvious too.

2 ..... Front head 4 ..... Front cylinder block
4 '..... Rear cylinder block 4a ..... Cylinder bore
5 ..... muffler section 10 ..... suction muffler chamber
11 ..... Communication hole 112 ..... Oil hole
114 .... oil suction member

Claims (4)

Front and rear cylinder blocks 4 and 4 'having a plurality of cylinder bores 4a formed therein;
A suction muffler chamber (10) formed outside the front and rear cylinder blocks (4, 4 ') to reduce pulsation and noise of the refrigerant sucked from the refrigerant inlet port (3);
A drive shaft (24) rotatably installed to penetrate the front and rear cylinder blocks (4, 4 '), and receive power required to compress the refrigerant from a drive source;
A swash plate 25 which is installed to the driving shaft 24 inclined and rotates in the swash plate chamber 23 formed in the front and rear cylinder blocks 4 and 4 '; And
In the swash plate compressor comprising a piston (30) for compressing the refrigerant in a linear reciprocating motion in the cylinder bore (4a) in accordance with the rotation of the swash plate (25);
The front and rear cylinder blocks 4 and 4 'are provided with partition walls 5a for partitioning the suction muffler chamber 10 and the swash plate chamber 23, and the suction muffler chamber 10 and the partition wall 5a. An oil hole 112 and a communication hole 11 communicating with the swash plate chamber 23 are formed, and the oil hole 112 and the communication hole 11 are formed in different directions with respect to the refrigerant inlet port. Swash plate compressor, characterized in that.
The swash plate type compressor of claim 1, wherein the oil hole (112) is formed at an upper portion of a partition wall partitioning the suction muffler chamber (10) and the swash plate chamber (23).
The oil suction member (114) according to claim 1 or 2, wherein the suction muffler chamber (10) is provided with an oil suction member (114) which is elastically deformable by the pressure of the refrigerant and can absorb oil. Swash plate compressor.
The swash plate of claim 3, wherein the oil suction member 114 is installed in a state of blocking the oil hole 112, and opens the oil hole 112 while being compressed by the pressure of the refrigerant to be sucked. Type compressor.

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