WO2019034367A1 - A compressor on whose cylinder head a special shape is formed - Google Patents

A compressor on whose cylinder head a special shape is formed Download PDF

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Publication number
WO2019034367A1
WO2019034367A1 PCT/EP2018/069739 EP2018069739W WO2019034367A1 WO 2019034367 A1 WO2019034367 A1 WO 2019034367A1 EP 2018069739 W EP2018069739 W EP 2018069739W WO 2019034367 A1 WO2019034367 A1 WO 2019034367A1
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WO
WIPO (PCT)
Prior art keywords
cylinder head
valve plate
cylinder
enabling
compressor
Prior art date
Application number
PCT/EP2018/069739
Other languages
French (fr)
Inventor
Metin Gunaydin
Yasin BATUR
Cihan Gunduz
Beytullah GORDES
Original Assignee
Arcelik Anonim Sirketi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2019034367A1 publication Critical patent/WO2019034367A1/en

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Classifications

    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125—Cylinder heads
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates

Definitions

  • the present invention relates to a compressor comprising a cylinder head on which a special shape is formed.
  • suction mufflers are set in enabling the circulating fluid used for providing cooling to reach the cylinder region without heating up, and the noise caused by the cycling fluid to be prevented.
  • a suction muffler is made of plastic material and is placed on the cylinder head or between the cylinder head and the valve plate. The sucked cycling fluid reaches the cylinder by passing through the portion forming the suction pipe, and the suction muffler provided in the cylinder head. While attempting to minimize the noise generated during this process, it is also required to improve the thermodynamic efficiency. However, heat transfer occurs at the portions where the cylinder head joins the suction muffler head, affecting the thermodynamic cycle.
  • the cylinder head presses on the body face surface by being screwed through a sealing member. While the thrust force applied by the bolts is constant, the thrust pressure decreases on the thrust region enlarged due to being on the sides, and the cylinder head flexes, creating a gap in between itself and the valve plate. This gap causes the high-pressure gas to leak, causing a decrease in efficiency.
  • a protrusion is formed on the periphery of the outlet hole disposed on the cylinder head, on which the valve on the valve plate thrusts.
  • the aim of the present invention is to realize a compressor with increased volumetric efficiency enabling a cycling fluid to be transferred to a cylinder without increasing its temperature and pressure by preventing gap formation at the portions where the cylinder head and the valve plate contact each other.
  • the compressor realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises a cylinder head on which a protrusion is formed on the surface contacting the valve plate.
  • Gap formation on the surface where the cylinder head contacts the valve plate is prevented by means of the bulge shaped protrusion formed on the surface where the cylinder head contacts the valve plate, thereby eliminating the risk of coolant fluid leakage.
  • the protrusion has a convex shape.
  • a bulge towards the valve plate is thus formed on the face surface where the cylinder head contacts the valve plate.
  • the face surface constituting the surface where the valve plate contacts the cylinder head has a flat shape as the concave shape forming due to flexing of the middle portion, is compensated by the convex bulge.
  • Figure 1 is a schematic view of a compressor.
  • Figure 2 is a perspective view of the cylinder head.
  • Figure 3 is a perspective view of the cylinder head and the suction muffler.
  • Figure 4 is a perspective view of the assembled cylinder head and the valve plate.
  • the compressor (1) of the invention comprises a housing (2) enclosing the movable parts, a body (3) on which the parts are assembled, a crank (5) rotating in the housing (2), a motor (4) enabling the crank (5) to be rotated, a cylinder (6) enabling pumping the circulating fluid, a suction muffler (8) enabling the circulating fluid to reach the cylinder (6) without being heated and the noise caused by the circulating fluid to be prevented, a cylinder head (10) connecting the suction muffler (8) and the cylinder (6), directing the sucked and pumped circulating fluid, a valve plate (11) enabling the circulating fluid to be sucked and pumped by forming a connection between the cylinder head (10) and the cylinder (6), and one or more fasteners (7) enabling fixing the cylinder head (10) and the suction muffler (8) to the valve plate (11) and the body (3) ( Figure 1) and
  • the cylinder head (10) is fixed on the valve plate (11) preferably by four fasteners (7).
  • the middle portion of the face surface is prevented from taking a concave shape by bending upon tightening the fasteners (7) on the corners if the face surface where the cylinder head (10) contacts the valve plate (11) is flat, inhibiting formation of a gap in between.
  • the compressor (1) comprises a face surface (9) on the cylinder head (10), at the portion where the cylinder head (10) contacts the valve plate (11).
  • the protrusion (12) of the invention is formed on the face surface (9).
  • the protrusion (12) has a convex shape.
  • a bulge towards the valve plate (11) is thus formed on the face surface (9).
  • a convex shape is formed which is complementary to the concave shape forming due to flexing of the face surface (9) by tightening of the fasteners (7) on the corners in cases where the face surface (9) which is the surface of the cylinder head (10) contacting the valve plate (11), is flat, and gap formation between the face surface (9) and the valve plate (11) is prevented.
  • the protrusion (12) has a height of 0.1 mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Abstract

The compressor (1) of the invention comprises a housing (2) enclosing the movable parts, a body (3) on which the parts are assembled, a crank (5) rotating in the housing (2), a motor (4) enabling the crank (5) to be rotated, a cylinder (6) enabling pumping the circulating fluid, a suction muffler (8) enabling the circulating fluid to reach the cylinder (6) without being heated and the noise caused by the circulating fluid to be prevented, a cylinder head (10) connecting the suction muffler (8) and the cylinder (6), directing the sucked and pumped circulating fluid, a valve plate (11) enabling the circulating fluid to be sucked and pumped by forming a connection between the cylinder head (10) and the cylinder (6), and one or more fasteners (7) enabling fixing the cylinder head (10) and the suction muffler (8) to the valve plate (11) and the body (3).

Description

A COMPRESSOR ON WHOSE CYLINDER HEAD A SPECIAL SHAPE IS FORMED
The present invention relates to a compressor comprising a cylinder head on which a special shape is formed.
In coolers, particularly in hermetic type compressors used in cooling cycle, suction mufflers are set in enabling the circulating fluid used for providing cooling to reach the cylinder region without heating up, and the noise caused by the cycling fluid to be prevented. In general, a suction muffler is made of plastic material and is placed on the cylinder head or between the cylinder head and the valve plate. The sucked cycling fluid reaches the cylinder by passing through the portion forming the suction pipe, and the suction muffler provided in the cylinder head. While attempting to minimize the noise generated during this process, it is also required to improve the thermodynamic efficiency. However, heat transfer occurs at the portions where the cylinder head joins the suction muffler head, affecting the thermodynamic cycle.
In the state of the art applications, the cylinder head presses on the body face surface by being screwed through a sealing member. While the thrust force applied by the bolts is constant, the thrust pressure decreases on the thrust region enlarged due to being on the sides, and the cylinder head flexes, creating a gap in between itself and the valve plate. This gap causes the high-pressure gas to leak, causing a decrease in efficiency.
In the state of the art South Korean Patent Application no. KR20010076700, a protrusion is formed on the periphery of the outlet hole disposed on the cylinder head, on which the valve on the valve plate thrusts.
The aim of the present invention is to realize a compressor with increased volumetric efficiency enabling a cycling fluid to be transferred to a cylinder without increasing its temperature and pressure by preventing gap formation at the portions where the cylinder head and the valve plate contact each other.
The compressor realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises a cylinder head on which a protrusion is formed on the surface contacting the valve plate.
Gap formation on the surface where the cylinder head contacts the valve plate is prevented by means of the bulge shaped protrusion formed on the surface where the cylinder head contacts the valve plate, thereby eliminating the risk of coolant fluid leakage.
In an embodiment of the invention, the protrusion has a convex shape. A bulge towards the valve plate is thus formed on the face surface where the cylinder head contacts the valve plate. Thereby forming of a gap between the valve plate and the face surface where the cylinder head contacts the valve plate is prevented, occurring in cases where the face surface is flat and the middle portion of the face surface takes a concave shape by bending upon tightening the screws on the corners.
When the cylinder head is fixed on the valve plate by being mounted by screws, the face surface constituting the surface where the valve plate contacts the cylinder head, has a flat shape as the concave shape forming due to flexing of the middle portion, is compensated by the convex bulge. By this, gap formation between the cylinder head and the valve plate, and occurrence of coolant fluid leakage are prevented.
The compressor realized to achieve the aims of the present invention is illustrated in the accompanying drawings, wherein:
Figure 1 is a schematic view of a compressor.
Figure 2 is a perspective view of the cylinder head.
Figure 3 is a perspective view of the cylinder head and the suction muffler.
Figure 4 is a perspective view of the assembled cylinder head and the valve plate.
The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
  1. Compressor
  2. Housing
  3. Body
  4. Motor
  5. Crank
  6. Cylinder
  7. Fastener
  8. Suction muffler
  9. Face surface
  10. Cylinder head
  11. Valve plate
  12. Protrusion
The compressor (1) of the invention comprises a housing (2) enclosing the movable parts, a body (3) on which the parts are assembled, a crank (5) rotating in the housing (2), a motor (4) enabling the crank (5) to be rotated, a cylinder (6) enabling pumping the circulating fluid, a suction muffler (8) enabling the circulating fluid to reach the cylinder (6) without being heated and the noise caused by the circulating fluid to be prevented, a cylinder head (10) connecting the suction muffler (8) and the cylinder (6), directing the sucked and pumped circulating fluid, a valve plate (11) enabling the circulating fluid to be sucked and pumped by forming a connection between the cylinder head (10) and the cylinder (6), and one or more fasteners (7) enabling fixing the cylinder head (10) and the suction muffler (8) to the valve plate (11) and the body (3) (Figure 1) and
  • a protrusion (12) from the cylinder head (10) towards the valve plate (11)
  • formed on the surface where the cylinder head (10) contacts the valve plate (11)
    (Figure 2 and Figure 3).
The cylinder head (10) is fixed on the valve plate (11) preferably by four fasteners (7). By means of the protrusion (12), the middle portion of the face surface is prevented from taking a concave shape by bending upon tightening the fasteners (7) on the corners if the face surface where the cylinder head (10) contacts the valve plate (11) is flat, inhibiting formation of a gap in between.
In an embodiment of the invention, the compressor (1) comprises a face surface (9) on the cylinder head (10), at the portion where the cylinder head (10) contacts the valve plate (11). The protrusion (12) of the invention is formed on the face surface (9).
In another embodiment of the invention, the protrusion (12) has a convex shape. A bulge towards the valve plate (11) is thus formed on the face surface (9). Thus, a convex shape is formed which is complementary to the concave shape forming due to flexing of the face surface (9) by tightening of the fasteners (7) on the corners in cases where the face surface (9) which is the surface of the cylinder head (10) contacting the valve plate (11), is flat, and gap formation between the face surface (9) and the valve plate (11) is prevented. When the cylinder head (10) is fixed on the valve plate (11) by being mounted by means of the fasteners (7), the face surface (9) where the valve plate (11) contacts the cylinder head (10), is flat (Figure 4).
In another embodiment of the invention, the protrusion (12) has a height of 0.1 mm.

Claims (5)

  1. A compressor (1) comprising a housing (2) enclosing the movable parts, a body (3) on which the parts are assembled, a crank (5) rotating in the housing (2), a motor (4) enabling the crank (5) to be rotated, a cylinder (6) enabling pumping the circulating fluid, a suction muffler (8) enabling the circulating fluid to reach the cylinder (6) without being heated and the noise caused by the circulating fluid to be prevented, a cylinder head (10) connecting the suction muffler (8) and the cylinder (6), directing the sucked and pumped circulating fluid, a valve plate (11) enabling the circulating fluid to be sucked and pumped by forming a connection between the cylinder head (10) and the cylinder (6), and one or more fasteners (7) enabling fixing the cylinder head (10) and the suction muffler (8) to the valve plate (11) and the body (3), characterized by
    - a protrusion (12) from the cylinder head (10) towards the valve plate (11)
    - formed on the surface where the cylinder head (10) contacts the valve plate (11).
  2. A compressor (1) according to claim 1, characterized by a face surface (9) disposed on the cylinder head (10), at the portion where the cylinder head (10) contacts the valve plate (11), and by the protrusion (12) formed on the face surface (9).
  3. A compressor (1) according to the claims 1 and 2, characterized by the convex shaped protrusion (12).
  4. A compressor (1) according to any one of the preceding claims, characterized by the bulge shaped protrusion (12) formed towards the valve plate (11).
  5. A compressor (1) according to any one of the preceding claims, characterized by the protrusion (12) having a height of 0.1 mm.
PCT/EP2018/069739 2017-08-15 2018-07-20 A compressor on whose cylinder head a special shape is formed WO2019034367A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/12072A TR201712072A2 (en) 2017-08-15 2017-08-15 A COMPRESSOR FORMED IN A SPECIAL FORM IN THE CYLINDER HEAD
TRA2017/12072 2017-08-15

Publications (1)

Publication Number Publication Date
WO2019034367A1 true WO2019034367A1 (en) 2019-02-21

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PCT/EP2018/069739 WO2019034367A1 (en) 2017-08-15 2018-07-20 A compressor on whose cylinder head a special shape is formed

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WO (1) WO2019034367A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113153688A (en) * 2021-04-13 2021-07-23 广州万宝集团压缩机有限公司 Air suction silencer, compressor and temperature adjusting equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010076700A (en) 2000-01-27 2001-08-16 구자홍 The structure of cylinder in hermetic compressor
US20020067997A1 (en) * 2000-12-06 2002-06-06 Lg Electronics Inc. Head cover structure of hermetic motor-driving type compressor
WO2003081042A1 (en) * 2002-03-25 2003-10-02 Arçelik A.S. A compressor with suction muffler strusture
WO2014053364A1 (en) * 2012-10-05 2014-04-10 Arcelik Anonim Sirketi A compressor comprising cylinder head
WO2016139267A1 (en) * 2015-03-04 2016-09-09 Arcelik Anonim Sirketi A compressor comprising a suction muffler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010076700A (en) 2000-01-27 2001-08-16 구자홍 The structure of cylinder in hermetic compressor
US20020067997A1 (en) * 2000-12-06 2002-06-06 Lg Electronics Inc. Head cover structure of hermetic motor-driving type compressor
WO2003081042A1 (en) * 2002-03-25 2003-10-02 Arçelik A.S. A compressor with suction muffler strusture
WO2014053364A1 (en) * 2012-10-05 2014-04-10 Arcelik Anonim Sirketi A compressor comprising cylinder head
WO2016139267A1 (en) * 2015-03-04 2016-09-09 Arcelik Anonim Sirketi A compressor comprising a suction muffler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113153688A (en) * 2021-04-13 2021-07-23 广州万宝集团压缩机有限公司 Air suction silencer, compressor and temperature adjusting equipment

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TR201712072A2 (en) 2019-03-21

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