CN111396319A - Oil pumping structure for refrigerator compressor - Google Patents
Oil pumping structure for refrigerator compressor Download PDFInfo
- Publication number
- CN111396319A CN111396319A CN201910796420.8A CN201910796420A CN111396319A CN 111396319 A CN111396319 A CN 111396319A CN 201910796420 A CN201910796420 A CN 201910796420A CN 111396319 A CN111396319 A CN 111396319A
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- gear
- spiral
- bevel gear
- oil
- driving
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
- F04D3/02—Axial-flow pumps of screw type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Compressor (AREA)
Abstract
The invention discloses an oil pumping structure for a refrigerator compressor, and aims to solve the problem that the oil of the refrigerator compressor is not sufficient at low rotating speed of a crankshaft. The oil-passing device comprises a rack, a crankshaft connecting sleeve, a crankshaft and a spiral rod, wherein an oil cavity is arranged in the rack, the crankshaft connecting sleeve is rotatably installed on the rack, the lower end of the crankshaft connecting sleeve extends into the oil cavity, the crankshaft is fixedly connected to the upper end of the crankshaft connecting sleeve, the spiral rod is rotatably installed in the crankshaft connecting sleeve, a spiral convex rib is arranged on the outer wall of the spiral rod, an oil-passing gap is formed between the spiral convex rib and the inner wall of the crankshaft connecting sleeve, and a transmission mechanism is connected between the crankshaft connecting sleeve and the spiral rod to enable. The oil pumping structure for the refrigerator compressor can meet the oil pumping requirement of the refrigerator compressor at a lower rotating speed, has a good oil pumping effect, ensures that the compressor operates at the lower rotating speed, and is favorable for reducing the vibration noise of the refrigerator.
Description
Technical Field
The invention relates to a refrigerator compressor, in particular to an oil pumping structure for the refrigerator compressor.
Background
With the improvement of living standard, people have more and more vigorous demands on low-vibration and low-noise refrigerators. The compressor, as a power component of the refrigerator system, is one of the key factors determining the vibration noise performance of the refrigerator. The lower the rotating speed of the compressor is, the smaller the mechanical friction loss, the slapping speed of the air suction and exhaust valve sheets and the average speed of air flow are, the lower the mechanical noise and the air flow noise of the compressor are, the noise level of the compressor has very obvious advantages compared with the high rotating speed, and the noise performance of the compressor on a refrigerator is better. The lowest using rotating speed of the refrigerator compressor shows a descending trend year by year in recent years. However, the compressor also faces some challenges when operating at a low rotation speed, the most obvious challenge is the oil pumping problem of the compressor lubricating system at the low rotation speed, the power source of the compressor oil pump of the current mainstream refrigerator is from the rotation motion of the crankshaft of the compressor, when the rotation speed of the compressor is low, the rotation speed of the crankshaft is low, the oil quantity on the oil pump is small, and the risk of insufficient oil supply or even no oil supply exists, which will aggravate the abrasion between the kinematic pairs and seriously affect the service life and reliability of the compressor.
In the running process of the refrigerator compressor, the oil pump conveys lubricating oil in an oil pool at the bottom of the compressor to each friction pair, the lubricating oil comprises a crankshaft and a crankshaft hole, a piston and a cylinder hole, a crankshaft end face supporting sliding bearing and the like, and lubrication and core cooling of each friction pair are realized. The oil pump structures commonly used by the oil pump of the refrigerator compressor at present mainly comprise two types: a vane centrifugal pump type structure and a spiral viscous pump type structure. The vane centrifugal pump type structure utilizes the centrifugal force generated by the rotation of the crankshaft to drive lubricating oil to form a U-shaped constant pressure surface in a hollow inner cavity of the crankshaft, the height of the constant pressure surface is the pumping height of an oil pump, the pumping height is in direct proportion to the square of the rotation speed of the crankshaft, and the vane centrifugal pump type structure is mainly used for a constant-rotation-speed refrigerator compressor with higher rotation speed. Spiral viscous pump formula structure adopts the cavity inner chamber at the bent axle to set up static hob, the hob surface is equipped with the spiral line body of evagination and forms the helicla flute with the cooperation of bent axle inner wall, when utilizing the bent axle rotation, the viscous shear force drive lubricating oil that the relative speed produced between rotatory bent axle inner wall and the static hob rises along the helicla flute, viscous shear force is directly proportional with the rotation rate, this structure mainly is applied to variable speed refrigerator compressor, compare in blade centrifugal pump formula structure can satisfy the pump oil demand under the compressor low rotational speed slightly, but if further reduce refrigerator compressor and use the rotational speed, it still has the risk of not enough oiling.
Disclosure of Invention
The invention solves the problem of insufficient oiling of the refrigerator compressor at the low rotating speed of the crankshaft, and provides the oil pumping structure for the refrigerator compressor, which can meet the oil pumping requirement of the refrigerator compressor at the lower rotating speed, has good oil pumping effect, ensures the compressor to operate at the lower rotating speed, and is beneficial to reducing the vibration noise of the refrigerator.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a refrigerator is pump oil structure for compressor, which comprises a frame, the bent axle adapter sleeve, the bent axle, the spiral stick, be equipped with the oil pocket in the frame, the bent axle adapter sleeve rotates to be installed in the frame and the lower extreme stretches into in the oil pocket, bent axle fastening connection is in bent axle adapter sleeve upper end, the spiral stick is rotatable to be installed in the bent axle adapter sleeve, be equipped with the protruding muscle of spiral on the spiral stick outer wall, be equipped with the oily clearance between the protruding muscle of spiral and the bent axle adapter sleeve inner wall, connect drive mechanism between bent axle adapter sleeve and the spiral stick and make the.
The crankshaft rotates to drive the crankshaft connecting sleeve to rotate, the crankshaft connecting sleeve drives the spiral rod to rotate through the transmission mechanism between the crankshaft connecting sleeve and the spiral rod, and the rotating directions of the crankshaft connecting sleeve and the spiral rod are opposite, so that the relative speed between the inner wall of the crankshaft connecting sleeve and the spiral rod is increased, the viscous shearing force required by pumping oil is increased, the oil pumping quantity and the oil pumping height are increased, the oil pumping requirement of a refrigerator compressor at a lower rotating speed is met, and the lower limit of the rotating speed use of a low rotating speed section of the compressor is widened. The oil pumping structure for the refrigerator compressor can meet the oil pumping requirement of the refrigerator compressor at a lower rotating speed, has a good oil pumping effect, ensures that the compressor operates at the lower rotating speed, and is favorable for reducing the vibration noise of the refrigerator.
Preferably, the transmission mechanism comprises a driving gear, a first transmission gear, a second transmission gear, a driving gear, a driven shaft and an installation shaft, the driven shaft and the installation shaft are rotatably installed on the rack, the driving gear is fixedly installed on the crankshaft sleeve, the first transmission gear and the second transmission gear are fixedly installed on the driven shaft, the driving gear and the spiral rod are fixedly installed on the installation shaft, the driving gear is in meshing transmission with the first transmission gear, and the second transmission gear is in meshing transmission with the driving gear.
The driving gear rotates along with the crankshaft connecting sleeve, the driving gear drives the first transmission gear to rotate, the second transmission gear rotates along with the first transmission gear and drives the driving gear to rotate, the spiral rod rotates along with the driving gear, the crankshaft connecting sleeve and the spiral rod rotate reversely through the transmission mechanism, and the rotation is stable and reliable.
Preferably, the driving gear and the driving gear are coaxially arranged, the driving gear is arranged below the driving gear, an inner gear ring is arranged on the inner wall of the driving gear, and the second transmission gear is in meshing transmission with the inner gear ring. The device has compact structure and stable and reliable operation.
According to the other scheme, the transmission mechanism comprises a driving bevel gear, a transmission bevel gear, a driven bevel gear, a rotating shaft and an installation shaft, wherein the rotating shaft and the installation shaft are rotatably installed on the rack, the driving bevel gear is fixedly installed on the crankshaft connecting sleeve, the transmission bevel gear is fixedly installed on the rotating shaft, the driven bevel gear and the spiral rod are fixedly installed on the installation shaft, and the transmission bevel gear is in meshing transmission between the driving bevel gear and the driven bevel gear.
The driving bevel gear rotates along with the crankshaft connecting sleeve, the driving bevel gear drives the driven bevel gear to rotate through the transmission bevel gear, the spiral rod rotates along with the driven bevel gear, the crankshaft connecting sleeve and the spiral rod rotate reversely through the transmission mechanism, and the rotation is stable and reliable.
Preferably, the driven bevel gear and the driving bevel gear are coaxially arranged, the driven bevel gear is arranged below the driving bevel gear, and the axis of the rotating shaft is vertical to the axis of the mounting shaft. The arrangement structure is simple, and the assembly is convenient.
Preferably, the cross section of the spiral rod is in an H-shaped structure. The spiral rod with the H-shaped structure has light weight, good structural strength and convenient assembly.
As the preferred, crankshaft connecting sleeve upper end is equipped with the connecting seat, is equipped with the mounting groove on the connecting seat, and crankshaft lower extreme adaptation is installed in the mounting groove, and the crankshaft inner wall is parallel and level with crankshaft connecting sleeve inner wall. The crankshaft is arranged on the connecting seat at the upper end of the crankshaft connecting sleeve, and the installation is convenient and reliable. The inner wall of the crankshaft is flush with the inner wall of the crankshaft connecting sleeve, so that oiling is facilitated.
Preferably, the outer wall of the lower part of the crankshaft connecting sleeve is provided with a spiral raised line, the spiral raised line extends to the lower end of the crankshaft connecting sleeve, and the spiral direction of the spiral raised line is the same as the spiral direction of the spiral raised line.
During the rotation process of the crankshaft connecting sleeve, the spiral raised lines play a good role in guiding oil, so that the oil around the spiral raised lines flows to the lower end of the crankshaft connecting sleeve, the oil can enter an oil passing gap from the lower end opening of the crankshaft connecting sleeve, and the oiling effect is improved.
Preferably, the lower end of the inner wall of the crankshaft connecting sleeve is provided with a flow guide surface which is obliquely arranged, the flow guide surface is gathered from bottom to top, the flow guide surface is provided with a flow guide convex strip which is spirally arranged, and the spiral direction of the flow guide convex strip is opposite to the spiral direction of the spiral convex rib.
During the rotation of the crankshaft connecting sleeve, the inclined flow guide surface reduces the resistance to oil, and meanwhile, the flow guide convex strips on the flow guide surface drive the oil to flow upwards, so that the oiling effect and the oiling amount are increased.
Compared with the prior art, the invention has the beneficial effects that: the oil pumping structure for the refrigerator compressor can meet the oil pumping requirement of the refrigerator compressor at a lower rotating speed, has a good oil pumping effect, ensures that the compressor operates at the lower rotating speed, and is favorable for reducing the vibration noise of the refrigerator.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural view of embodiment 2 of the present invention;
FIG. 3 is a schematic structural view of embodiment 3 of the present invention;
FIG. 4 is a schematic structural view of embodiment 4 of the present invention;
in the figure: 1. the device comprises a rack, 2, a crankshaft connecting sleeve, 3, a crankshaft, 4, a spiral rod, 5, an oil cavity, 6, a spiral convex rib, 7, a driving gear, 8, a first transmission gear, 9, a second transmission gear, 10, a driving gear, 11, a driven shaft, 12, a mounting shaft, 13, a driving bevel gear, 14, a transmission bevel gear, 15, a driven bevel gear, 16, a rotating shaft, 17, a connecting seat, 18, a mounting groove, 19, a spiral convex strip, 20, a flow guide surface, 21 and a flow guide convex strip.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1: the utility model provides a refrigerator is pump oil structure for compressor (see figure 1), includes frame 1, crankshaft connecting sleeve 2, bent axle 3, spiral rod 4, is equipped with oil pocket 5 in the frame, and the crankshaft connecting sleeve rotates to be installed in the frame and the lower extreme stretches into in the oil pocket, and bent axle fastening connection is in crankshaft connecting sleeve upper end, and crankshaft connecting sleeve upper end is equipped with connecting seat 17, is equipped with mounting groove 18 on the connecting seat, and bent axle lower extreme adaptation is installed in the mounting groove, and the bent axle inner wall is parallel and level with crankshaft connecting sleeve. The crankshaft connecting sleeve, the crankshaft and the screw rod are coaxially arranged. The spiral rod can be rotatably installed in the crankshaft connecting sleeve, the spiral convex rib 6 is arranged on the outer wall of the spiral rod, an oil passing gap is formed between the spiral convex rib and the inner wall of the crankshaft connecting sleeve, and the crankshaft connecting sleeve and the spiral rod are connected through a transmission mechanism to enable the rotation directions of the crankshaft connecting sleeve and the spiral rod to be opposite. The lower end of the spiral rod extends out of the lower end of the crankshaft connecting sleeve.
The transmission mechanism comprises a driving gear 7, a first transmission gear 8, a second transmission gear 9, a driving gear 10, a driven shaft 11 and an installation shaft 12, wherein the driven shaft and the installation shaft are both vertically arranged. Driven shaft and installation axle all rotate to be installed in the frame, and the driving gear fastening is installed on the crankshaft sleeve, and first drive gear, second drive gear all fastening installation are on the driven shaft, and drive gear and the equal fastening installation of hob are on installation axle, and the driving gear meshes the transmission with first drive gear, and second drive gear meshes the transmission with drive gear. The driving gear and the driving gear are coaxially arranged, the driving gear is arranged below the driving gear, an inner gear ring is arranged on the inner wall of the driving gear, and the second transmission gear is in meshing transmission with the inner gear ring. The section of the screw rod is in an H-shaped structure, the upper end of the mounting shaft is inserted into the screw rod from an opening at the lower end of the screw rod, and the lower end of the mounting shaft is connected to the rack. A gap is arranged between the lower end of the crankshaft connecting sleeve and the driving gear. The external diameter of the driving gear is smaller than that of the driving gear, the external diameters of the first transmission gear and the second transmission gear are the same, and the external diameter of the first transmission gear is smaller than that of the driving gear.
The crankshaft rotates to drive the crankshaft connecting sleeve to rotate, the crankshaft connecting sleeve drives the spiral rod to rotate through the transmission mechanism between the crankshaft connecting sleeve and the spiral rod, and the rotating directions of the crankshaft connecting sleeve and the spiral rod are opposite, so that the relative speed between the inner wall of the crankshaft connecting sleeve and the spiral rod is increased, the viscous shearing force required by pumping oil is increased, the oil pumping quantity and the oil pumping height are increased, the oil pumping requirement of a refrigerator compressor at a lower rotating speed is met, and the lower limit of the rotating speed use of a low rotating speed section of the compressor is widened. The oil pumping structure for the refrigerator compressor can meet the oil pumping requirement of the refrigerator compressor at a lower rotating speed, has a good oil pumping effect, ensures that the compressor operates at the lower rotating speed, and is favorable for reducing the vibration noise of the refrigerator.
Example 2: an oil pumping structure for a refrigerator compressor (see the attached figure 2) is similar to that of embodiment 1, and mainly differs from the embodiment in that a spiral convex strip 19 is arranged on the outer wall of the lower part of a crankshaft connecting sleeve, the spiral convex strip extends to the lower end of the crankshaft connecting sleeve, and the spiral direction of the spiral convex strip is the same as that of the spiral convex strip. The lower end of the inner wall of the crankshaft connecting sleeve is provided with a flow guide surface 20 which is obliquely arranged, the flow guide surface is gathered from bottom to top, a flow guide convex strip 21 which is spirally arranged is arranged on the flow guide surface, and the spiral direction of the flow guide convex strip is opposite to the spiral direction of the spiral convex strip. The other structure is the same as embodiment 1.
During the rotation process of the crankshaft connecting sleeve, the spiral raised lines play a good role in guiding oil, so that the oil around the spiral raised lines flows to the lower end of the crankshaft connecting sleeve, the oil can enter an oil passing gap from the lower end opening of the crankshaft connecting sleeve, and the oiling effect is improved. During the rotation of the crankshaft connecting sleeve, the inclined flow guide surface reduces the resistance to oil, and meanwhile, the flow guide convex strips on the flow guide surface drive the oil to flow upwards, so that the oiling effect and the oiling amount are increased.
Example 3: the structure of the oil pumping structure for the refrigerator compressor (see attached figure 3) is similar to that of embodiment 1, and the main difference is that the transmission mechanism in the embodiment comprises a driving bevel gear 13, a transmission bevel gear 14, a driven bevel gear 15, a rotating shaft 16 and an installation shaft, wherein the rotating shaft and the installation shaft are both rotatably installed on a machine frame, the driving bevel gear is fixedly installed on a crankshaft sleeve, the transmission bevel gear is fixedly installed on the rotating shaft, the driven bevel gear and a spiral rod are both fixedly installed on the installation shaft, and the transmission bevel gear is in meshing transmission between the driving bevel gear and the driven bevel gear. The driven bevel gear and the driving bevel gear are coaxially arranged, the driven bevel gear is arranged below the driving bevel gear, and the axis of the rotating shaft is vertical to the axis of the mounting shaft. The outer diameter of the driving bevel gear is the same as that of the driven bevel gear. The outer diameter of the drive bevel gear is larger than that of the transmission bevel gear. The installation axle is vertical to be set up, and the pivot level sets up. The other structure is the same as embodiment 1.
Example 4: the structure of the oil pumping structure for the refrigerator compressor (see attached figure 3) is similar to that of embodiment 1, and the main difference is that the transmission mechanism in the embodiment comprises a driving bevel gear 13, a transmission bevel gear 14, a driven bevel gear 15, a rotating shaft 16 and an installation shaft, wherein the rotating shaft and the installation shaft are both rotatably installed on a machine frame, the driving bevel gear is fixedly installed on a crankshaft sleeve, the transmission bevel gear is fixedly installed on the rotating shaft, the driven bevel gear and a spiral rod are both fixedly installed on the installation shaft, and the transmission bevel gear is in meshing transmission between the driving bevel gear and the driven bevel gear. The driven bevel gear and the driving bevel gear are coaxially arranged, the driven bevel gear is arranged below the driving bevel gear, and the axis of the rotating shaft is vertical to the axis of the mounting shaft. The outer diameter of the driving bevel gear is the same as that of the driven bevel gear. The outer diameter of the drive bevel gear is larger than that of the transmission bevel gear. The installation axle is vertical to be set up, and the pivot level sets up. The outer wall of the lower part of the crankshaft connecting sleeve is provided with a spiral raised line 19 which extends to the lower end of the crankshaft connecting sleeve, and the spiral direction of the spiral raised line is the same as that of the spiral raised rib. The lower end of the inner wall of the crankshaft connecting sleeve is provided with a flow guide surface 20 which is obliquely arranged, the flow guide surface is gathered from bottom to top, a flow guide convex strip 21 which is spirally arranged is arranged on the flow guide surface, and the spiral direction of the flow guide convex strip is opposite to the spiral direction of the spiral convex strip. The other structure is the same as embodiment 1.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.
Claims (9)
1. The utility model provides a refrigerator is pump oil structure for compressor, characterized by, including the frame, the bent axle adapter sleeve, the bent axle, the spiral stick, be equipped with the oil pocket in the frame, the bent axle adapter sleeve rotates to be installed in the frame and the lower extreme stretches into in the oil pocket, bent axle fastening connection is in bent axle adapter sleeve upper end, the spiral stick is rotatable to be installed in the bent axle adapter sleeve, be equipped with the protruding muscle of spiral on the spiral stick outer wall, be equipped with the oil clearance of crossing between the protruding muscle of spiral and the bent axle adapter sleeve inner wall, connect drive mechanism between bent axle adapter sleeve and the spiral stick and.
2. The oil pumping structure of claim 1, wherein the transmission mechanism comprises a driving gear, a first transmission gear, a second transmission gear, a driving gear, a driven shaft, and a mounting shaft, the driven shaft and the mounting shaft are rotatably mounted on the frame, the driving gear is tightly mounted on the crankshaft sleeve, the first transmission gear and the second transmission gear are tightly mounted on the driven shaft, the driving gear and the screw rod are tightly mounted on the mounting shaft, the driving gear is in meshing transmission with the first transmission gear, and the second transmission gear is in meshing transmission with the driving gear.
3. The oil pumping structure of the compressor of the refrigerator as claimed in claim 2, wherein the driving gear is coaxially disposed with the driving gear, the driving gear is disposed under the driving gear, an inner ring gear is disposed on an inner wall of the driving gear, and the second transmission gear is engaged with the inner ring gear for transmission.
4. The oil pumping structure of claim 1, wherein the transmission mechanism comprises a driving bevel gear, a driven bevel gear, a rotating shaft, and a mounting shaft, the rotating shaft and the mounting shaft are rotatably mounted on the frame, the driving bevel gear is tightly mounted on the crankshaft coupling sleeve, the driving bevel gear is tightly mounted on the rotating shaft, the driven bevel gear and the spiral rod are tightly mounted on the mounting shaft, and the driving bevel gear is engaged and driven between the driving bevel gear and the driven bevel gear.
5. The oil pumping structure of a compressor for a refrigerator as claimed in claim 4, wherein the driven bevel gear is coaxially disposed with the driving bevel gear, the driven bevel gear is disposed below the driving bevel gear, and the axis of the rotation shaft is perpendicular to the axis of the mounting shaft.
6. The oil pumping structure of a compressor for a refrigerator as claimed in claim 1, wherein the spiral rod has an H-shaped cross-section.
7. The structure of claim 1, wherein the crank shaft connecting sleeve has a connecting seat at an upper end thereof, the connecting seat has a mounting groove, the lower end of the crank shaft is fittingly mounted in the mounting groove, and an inner wall of the crank shaft is flush with an inner wall of the crank shaft connecting sleeve.
8. The structure of pumping oil for a compressor of a refrigerator as defined in any one of claims 1 to 7, wherein the crank connecting sleeve is provided on an outer wall of a lower portion thereof with a spiral rib extending to a lower end thereof, the spiral rib having a spiral direction identical to that of the spiral rib.
9. The structure of any one of claims 1 to 7, wherein the crankshaft connecting sleeve has a guiding surface at a lower end thereof, the guiding surface being inclined and converging from bottom to top, the guiding surface having a guiding rib spirally disposed thereon, the spiral direction of the guiding rib being opposite to the spiral direction of the spiral rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910796420.8A CN111396319A (en) | 2019-08-27 | 2019-08-27 | Oil pumping structure for refrigerator compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910796420.8A CN111396319A (en) | 2019-08-27 | 2019-08-27 | Oil pumping structure for refrigerator compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111396319A true CN111396319A (en) | 2020-07-10 |
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ID=71435878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910796420.8A Pending CN111396319A (en) | 2019-08-27 | 2019-08-27 | Oil pumping structure for refrigerator compressor |
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| CN (1) | CN111396319A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4273521A (en) * | 1978-02-10 | 1981-06-16 | E. T. Oakes Limited | Drive arrangement |
| GB2166809A (en) * | 1984-11-13 | 1986-05-14 | Tecumseh Products Co | Compressor lubrication and cooling |
| CN1386981A (en) * | 2001-05-18 | 2002-12-25 | Lg电子株式会社 | Oil supply device for hermetically sealed compressor |
| CN201810523U (en) * | 2010-09-27 | 2011-04-27 | 加西贝拉压缩机有限公司 | Oil pumping structure applied to hermetically sealed compressor |
| CN109973359A (en) * | 2017-12-27 | 2019-07-05 | 常州华凯石墨烯应用科技有限公司 | Using the fuel sucking pipe of helical groove structure |
-
2019
- 2019-08-27 CN CN201910796420.8A patent/CN111396319A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4273521A (en) * | 1978-02-10 | 1981-06-16 | E. T. Oakes Limited | Drive arrangement |
| GB2166809A (en) * | 1984-11-13 | 1986-05-14 | Tecumseh Products Co | Compressor lubrication and cooling |
| CN1386981A (en) * | 2001-05-18 | 2002-12-25 | Lg电子株式会社 | Oil supply device for hermetically sealed compressor |
| CN201810523U (en) * | 2010-09-27 | 2011-04-27 | 加西贝拉压缩机有限公司 | Oil pumping structure applied to hermetically sealed compressor |
| CN109973359A (en) * | 2017-12-27 | 2019-07-05 | 常州华凯石墨烯应用科技有限公司 | Using the fuel sucking pipe of helical groove structure |
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Application publication date: 20200710 |