KR100825263B1 - Muffler for air-con compressor - Google Patents

Muffler for air-con compressor Download PDF

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Publication number
KR100825263B1
KR100825263B1 KR1020070005149A KR20070005149A KR100825263B1 KR 100825263 B1 KR100825263 B1 KR 100825263B1 KR 1020070005149 A KR1020070005149 A KR 1020070005149A KR 20070005149 A KR20070005149 A KR 20070005149A KR 100825263 B1 KR100825263 B1 KR 100825263B1
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KR
South Korea
Prior art keywords
muffler
compressor
flange part
welding
compressor pipe
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KR1020070005149A
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Korean (ko)
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조상만
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주식회사 평산
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Publication of KR100825263B1 publication Critical patent/KR100825263B1/en

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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
    • F04B39/0027—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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/20—Manufacture essentially without removing material
    • F05B2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05B2230/232—Manufacture essentially without removing material by permanently joining parts together by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/20—Manufacture essentially without removing material
    • F05B2230/25—Manufacture essentially without removing material by forging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/10—Inorganic materials, e.g. metals
    • F05B2280/102—Light metals
    • F05B2280/1021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium

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

Abstract

A method for manufacturing a muffler for a compressor of an air conditioner is provided to form a compressor pipe and a flange part at both sides of a muffler by press-forging and connect another compressor pipe to the flange part by welding, thereby reducing the welding step, reducing the loss of materials, and the welding failure. A method for manufacturing a muffler for a compressor of an air conditioner includes the steps of preparing an element cut in a predetermined size and having a hole perforated in the center in the axial direction, forming a first compressor pipe(12) extended from a side of a muffler(10) integrally by press-forging the prepared element primarily, forming a flange part(14) by press-forging the other side of the muffler, carrying out turning operation for the flange part for forming a stepped portion(14a) at the flange part, and welding a second compressor pipe to the flange part after inserting the second compressor pipe into the flange part via the stepped portion.

Description

에어컨 컴프레서용 머플러의 제조공정{muffler for air-con compressor}Manufacturing process of muffler for air conditioner compressor {muffler for air-con compressor}

도 1은 일반적인 에어컨 컴프레서에 머플러가 설치된 상태를 개략적으로 나타낸 것이다.1 schematically illustrates a state in which a muffler is installed in a general air conditioner compressor.

도 2는 종래 에어컨 컴프레서용 머플러의 제조공정 및 구성도이다.2 is a manufacturing process and configuration diagram of a conventional air conditioner muffler.

도 3은 본 발명의 에어컨 컴프레서용 머플러의 제조공정 및 구성도이다.3 is a manufacturing process and configuration diagram of the muffler for air conditioner compressor of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 머플러 12 : 제1컴프레서 파이프10: muffler 12: first compressor pipe

14 : 플랜지부 14a : 설치단턱14 flange 14a mounting step

16 : 제2컴프레서 파이프16: second compressor pipe

본 발명의 에어컨 컴프레서용 머플러에 관한 것으로, 특히 머플러의 양측과 연결되는 파이프 중 어느 하나를 일체로 프레스 단조공정에 일체로 연장 형성하여 머플러의 제조공정을 간단히 하고 동시에 재료의 절감과 함께 용접불량에 따른 리크(leak)를 방지할 수 있도록 하는 에어컨 컴프레서용 머플러의 제조공정에 관한 것이다.The present invention relates to a muffler for an air conditioner compressor, and in particular, any one of the pipes connected to both sides of the muffler is integrally formed in the press forging process to simplify the manufacturing process of the muffler and at the same time reduce the material and reduce the welding defect. The present invention relates to a manufacturing process of an air conditioner compressor muffler to prevent leakage.

일반적으로 차량에서 사용되는 에어컨 컴프레서는 엔진에 의해 구동되며 증발기에서 저압기체로 된 냉매를 고압으로 압축하여 응축기로 보내는 작용을 수행하게 된다.In general, an air conditioner compressor used in a vehicle is driven by an engine and performs a function of compressing a low pressure gas refrigerant from an evaporator to a high pressure and sending it to a condenser.

이러한 에어컨 컴프레서는 도 1에 도시된 바와 같이 엔진(도시생략)과 함께 엔진 룸 내에 고정되도록 설치되고, 대시패널(50)을 관통하는 냉매이동수단(52)을 매개로 실내 측에 설치되는 에어컨유닛(도시생략)과 연결되는 구조로 되어 있다.Such an air conditioner compressor is installed to be fixed in an engine room together with an engine (not shown) as shown in FIG. 1, and is installed in an indoor side via a refrigerant moving means 52 passing through the dash panel 50. It is connected to the structure (not shown).

여기서, 상기 냉매이동수단(52)은 에어컨 컴프레서(54)와 연결되는 컴프레서 파이프(56)(58)와 일 측의 컴프레서 파이프(56)와 연결되는 연결호스(60)와, 이 연결호스(60)와 연결되면서 대시패널(50)을 관통하는 실내 측에 설치된 에어컨유닛과 연결되는 에어컨유닛 파이프(62)로 연결되어 구성된다.Here, the refrigerant moving means 52 is a compressor hose 56 and 58 connected to the air conditioner compressor 54 and a connection hose 60 to be connected to the compressor pipe 56 on one side, the connection hose 60 ) Is connected to the air conditioning unit pipe 62 is connected to the air conditioning unit installed on the indoor side passing through the dash panel 50 is configured.

한편, 상기 컴프레서 파이프(56)(58)는 그 사이에 머플러(70)가 설치되는바, 상기 머플러(70)는 컴프레서 파이프(56)(58)의 직경보다 상대적으로 큰 볼륨에 의해 냉매이동수단(52)을 통해 이동되는 냉매의 유동 음을 없애는 기능을 수행하게 된다.Meanwhile, the compressor pipes 56 and 58 are provided with a muffler 70 therebetween, and the muffler 70 is a refrigerant moving means by a volume relatively larger than the diameter of the compressor pipes 56 and 58. A function of eliminating the flow sound of the refrigerant moving through the 52 is performed.

상기와 같은 기능을 하는 머플러(70)는 도 2에 도시된 바와 같은 제조공정에 의해 제조되고 구성된다.The muffler 70 functioning as described above is manufactured and configured by a manufacturing process as shown in FIG.

종래의 머플러(70) 및 이와 연결되는 파이프(56)(58)는 도 2의 제조공정 (a)(b)(c)(d)(e)에 의해 제조되어 구성된다.The conventional muffler 70 and pipes 56 and 58 connected thereto are manufactured and configured by the manufacturing process (a) (b) (c) (d) (e) of FIG.

먼저 도 2의 (a)와 같이 일정한 크기로 절단된 알루미늄 소재를 준비하고, (b)와 같이 1차 프레스 단조를 하여 머플러의 외관을 형성하고 일 측으로 막힌 플랜지부(도면에서 보면 오른쪽 부분)를 형성하고, (c)와 같이 2차 프레스 단조를 하여 타 측의 플랜지부(도면에서 보면 왼쪽 부분)를 형성하고, (d)와 프레스 단조에 의해 형성된 양 플랜지부를 선반가공하고, (e)와 같이 선반으로 가공된 양 플랜지부(70a)(70b)에 컴프레서 파이프(56)(58)의 일 단부를 위치시킨 후 용접을 하여 머플러(70)의 양측에 컴프레서 파이프(56)(58)를 연결하여 구성한 것이다.First, the aluminum material is cut into a predetermined size as shown in (a) of Figure 2, and the first press forging, as shown in (b) to form the appearance of the muffler and the flange portion (right side when seen in the drawing) blocked to one side Second flange forging as shown in (c) to form the flange portion on the other side (left side in view), lathe machining both flange portions formed by (d) and press forging, and (e) As shown, one end of the compressor pipes 56 and 58 is placed on both flange portions 70a and 70b which are processed into lathes, and then the compressor pipes 56 and 58 are placed on both sides of the muffler 70 by welding. It is connected and configured.

상기와 같이 구성된 머플러(70)에 따르면, 머플러(70)의 양측에 플랜지부(70a)(70b)를 형성하고 이들 플랜지부(70a)(70b)에 컴프레서 파이프(56)(58)를 각각 용접함으로 인해 가공공정이 많아 생산성이 낮고, 소재의 로스가 늘어 제조원가를 상승시키며, 두 개의 컴프레서 파이프(56)(58)를 양 플랜지부(70a)(70b)에 각각 용접을 함에 따라 리크에 따른 제품불량 가능성을 높이는 문제점이 있었다.According to the muffler 70 configured as described above, flange portions 70a and 70b are formed on both sides of the muffler 70 and the compressor pipes 56 and 58 are welded to these flange portions 70a and 70b, respectively. Due to the large number of processing processes, the productivity is low, and the loss of material increases, thereby increasing the manufacturing cost. As the two compressor pipes 56 and 58 are welded to both flange portions 70a and 70b, the product according to the leakage There was a problem of increasing the probability of failure.

본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위해 창안된 것으로, 본 발명의 주된 목적은, 프레스 단조가공에서 머플러의 일 측을 연장하여 일 측의 컴프레서 파이프를 일체로 형성하고 타 측의 컴프레서 파이프는 머플러에 형성된 플랜지부를 통해 용접으로 연결함으로써 제조공정을 단순화시켜 생산성을 향상시키고, 이에 따른 소재의 로스를 줄이고, 용접공정이 한 군데만 실시됨에 따른 용접불량률을 감소시킬 수 있도록 하는 에어컨 컴프레서용 머플러의 제조공정을 제공하는 것이다.The present invention has been made to solve the problems of the prior art as described above, the main object of the present invention, in the press forging process to extend one side of the muffler to form a compressor pipe on one side integrally and the compressor on the other side The pipe is connected by welding through the flange formed in the muffler, which simplifies the manufacturing process, improves productivity, reduces material loss, and reduces the welding failure rate due to only one welding process. It is to provide a manufacturing process of the muffler for.

상기의 목적을 달성하기 위한 본 발명은, 소재를 프레스 단조로 하여 일정한 외경 형상을 갖는 머플러와, 이 머플러의 일 측으로 연장되어 일체로 형성되는 제1컴프레서 파이프와, 상기 머플러의 타 측에 플랜지부를 형성하여 이 플랜지부에 제2컴프레서 파이프를 연결하여 구성된 것을 특징으로 한다.In order to achieve the above object, the present invention provides a muffler having a constant outer diameter by press-forging a material, a first compressor pipe extending integrally with one side of the muffler, and a flange portion on the other side of the muffler. It characterized in that it is formed by connecting the second compressor pipe to the flange portion.

또한, 본 발명은 일정한 크기로 절단되고 축 방향의 중앙으로 구멍이 천공된 소재를 준비하는 단계; 상기 준비된 소재를 1차 프레스 단조를 하여 일정한 외경 형상을 갖는 머플러와 일 측으로 연장되어 일체로 제1컴프레서 파이프를 형성하는 단계와; 상기 머플러의 타 측으로 프레스 단조하여 플랜지부를 형성하는 단계와; 상기 플랜지부를 선반 가공하는 단계와; 상기 플랜지부에 제2컴프레서 파이프를 용접으로 연결하는 단계를 포함하는 것을 특징으로 한다.In addition, the present invention comprises the steps of preparing a material that is cut to a certain size and perforated in the center of the axial direction; Primary press forging the prepared material and extending to one side with a muffler having a constant outer diameter to integrally form a first compressor pipe; Press forging the other side of the muffler to form a flange portion; Lathe machining the flange portion; And connecting the second compressor pipe by welding to the flange portion.

상기 머플러의 소재는 연성이 양호한 알루미늄 합금으로 이루어진 것을 특징으로 한다.The material of the muffler is characterized in that made of a good ductility aluminum alloy.

이하에서, 본 발명의 바람직한 실시 예를 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

이에 앞서 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이고 사전적인 의미로 해석되어서는 아니 되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Prior to this, the terms or words used in this specification and claims should not be construed in the ordinary and dictionary sense, and the inventors may appropriately define the concepts of terms in order to best describe their invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

따라서 본 명세서에 기재된 실시 예와 도면에 도시된 구성은 본 발명의 바람직한 1실시 예에 불과할 뿐이고, 본 발명의 기술적 사상을 모두 대변하는 것은 아 니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형 예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one preferred embodiment of the present invention, and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

도 3은 본 발명의 에어컨 컴프레서용 머플러의 제조공정 및 구성도를 도시한 것이다.Figure 3 shows the manufacturing process and configuration of the muffler for air conditioner compressor of the present invention.

도 3에 도시된 바와 같이, 발명의 머플러(10)는 소재를 프레스 단조하여 일정한 외경 형상을 갖고, 상기 머플러(10)의 일 측으로부터 일체로 연장된 제1컴프레서 파이프(12)가 형성되고, 상기 머플러(10)의 타 측에 플랜지부(14)를 형성하여 이 플랜지부(14)에 제2컴프레서 파이프(16)를 용접으로 연결하여 구성된다.As shown in FIG. 3, the muffler 10 of the invention has a constant outer diameter shape by press forging a material, and a first compressor pipe 12 integrally extending from one side of the muffler 10 is formed. The flange portion 14 is formed on the other side of the muffler 10 and the second compressor pipe 16 is connected to the flange portion 14 by welding.

상기와 같이 제1컴프레서 파이프(12)와 제2컴프레서 파이프(16)가 형성된 머플러(10)의 제조공정을 설명하면 다음과 같다.The manufacturing process of the muffler 10 in which the first compressor pipe 12 and the second compressor pipe 16 are formed as described above is as follows.

먼저, 도 3의 (A)와 같이 일정한 크기로 절단되고 축 방향의 중앙으로 구멍(1a)이 천공된 소재(1)를 준비하는 단계와; (B)와 같이 상기 준비된 소재(1)를 1차 프레스 단조를 하여 일정한 외경 형상을 갖는 머플러(10)와 일 측으로 연장되어 일체로 제1컴프레서 파이프(12)를 형성하는 단계와; (C)와 같이 상기 머플러(10)의 타 측으로 프레스 단조하여 플랜지부(14)를 형성하는 단계와; (D)와 같이 상기 플랜지부(14)를 선반 가공하여 설치단턱(14a)을 형성하는 단계와; (E)와 같이 상기 플랜지부(14)의 설치단턱(14a)을 통해 제2컴프레서 파이프(16)를 삽입 위치시키고 이를 용접으로 연결하는 단계를 포함하여 구성된다.First, preparing a material 1 cut into a predetermined size as shown in FIG. Forming a first compressor pipe 12 integrally with the muffler 10 having a constant outer diameter and extending to one side by primary press-forging the prepared material 1 as shown in (B); Press forging the other side of the muffler (10) to form a flange portion (14); Lathe machining the flange portion 14 to form an installation step 14a as shown in (D); And (E) inserting the second compressor pipe 16 through the installation step 14a of the flange portion 14 and connecting it by welding.

상기 머플러(10)의 소재는 연성이 양호한 알루미늄 합금으로 하는 것이 바람직하다.The material of the muffler 10 is preferably made of aluminum alloy with good ductility.

상기와 같이 제1컴프레서 파이프(12)를 머플러(10)의 프레스 단조 공정에서 머플러(10)로부터 연장시켜 일체로 형성함으로써 제조공정이 단순화되어 공정을 개선하는 효과와 함께 적어도 제1컴프레서 파이프(12)는 용접공정을 없앰으로써 리크 불량에 대한 부담을 완전 해소하는 효과를 갖는다.As described above, the first compressor pipe 12 is formed integrally by extending from the muffler 10 in the press forging process of the muffler 10, thereby simplifying the manufacturing process and improving the process, at least the first compressor pipe 12. ) Has the effect of completely eliminating the burden of leak failure by eliminating the welding process.

그리고 상기 제1컴프레서 파이프(12)를 머플러(10)와 일체로 형성함으로써 종래처럼 선반가공에 따라 재료의 로스를 없애 그만큼의 재료를 절감시키는 효과를 갖는다.In addition, by forming the first compressor pipe 12 integrally with the muffler 10, it is possible to reduce the material by eliminating the loss of the material according to the lathe as in the prior art.

이상에서 설명한 바와 같이 본 발명의 에어컨 컴프레서용 머플러의 제조공정에 의하면, 머플러의 일 측과 연결되는 제1컴프레서 파이프를 머플러의 프레서 단조 공정에서 일체로 연장시켜 형성함으로써 제조공정을 단순화하고 용접공정을 제2컴프레서 파이프의 한 군데로 하여 용접불량에 따른 리크 불량 가능성을 낮추며, 재료의 로스 절감에 따른 재료비를 절감시키고 공정개선으로 품질을 향상시키는 효과를 갖는다.As described above, according to the manufacturing process of the air conditioner muffler of the present invention, the first compressor pipe connected to one side of the muffler is integrally extended in the presser forging process of the muffler to simplify the manufacturing process and the welding process. It is possible to reduce the possibility of leak defects due to poor welding due to the one of the second compressor pipe, reduce the material cost according to the loss of material and improve the quality by improving the process.

Claims (4)

삭제delete 삭제delete 일정한 크기로 절단되고 축 방향의 중앙으로 구멍이 천공된 알루미늄 합금 소재를 준비하는 단계와;Preparing an aluminum alloy material cut to a predetermined size and perforated in the center of the axial direction; 상기 준비된 소재를 1차 프레스 단조를 하여 일정한 외경 형상을 갖는 머플러와 일 측으로 연장되어 일체로 제1컴프레서 파이프를 형성하는 단계와;Primary press forging the prepared material and extending to one side with a muffler having a constant outer diameter to integrally form a first compressor pipe; 상기 머플러의 타 측으로 프레스 단조하여 플랜지부를 형성하는 단계와;Press forging the other side of the muffler to form a flange portion; 상기 플랜지부에 설치단턱을 선반 가공하는 단계와;Lathe machining the installation step on the flange portion; 상기 플랜지부의 설치단턱에 제2컴프레서 파이프를 용접으로 연결하는 단계를 포함하는 것을 특징으로 하는 에어컨 컴프레서용 머플러의 제조공정.Manufacturing process of the muffler for air conditioner comprising the step of connecting the second compressor pipe by welding to the installation step of the flange. 삭제delete
KR1020070005149A 2007-01-17 2007-01-17 Muffler for air-con compressor KR100825263B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756240A (en) * 2012-07-02 2012-10-31 浙江方宏空调设备有限公司 Method for manufacturing single-cavity resonance type silencers for automotive air conditioners

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57206538A (en) * 1981-06-15 1982-12-17 Hitachi Ltd Manufacture of exhaust silencer
JP2000205701A (en) * 1999-01-08 2000-07-28 Ootsuka:Kk Silencer for air-conditioner
JP2002090001A (en) 2000-09-20 2002-03-27 Fujitsu General Ltd Muffler for air conditioner
KR100630598B1 (en) 2005-07-29 2006-10-02 (주)휘일 Method for manufacturing of muffler for air conditioner in vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57206538A (en) * 1981-06-15 1982-12-17 Hitachi Ltd Manufacture of exhaust silencer
JP2000205701A (en) * 1999-01-08 2000-07-28 Ootsuka:Kk Silencer for air-conditioner
JP2002090001A (en) 2000-09-20 2002-03-27 Fujitsu General Ltd Muffler for air conditioner
KR100630598B1 (en) 2005-07-29 2006-10-02 (주)휘일 Method for manufacturing of muffler for air conditioner in vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756240A (en) * 2012-07-02 2012-10-31 浙江方宏空调设备有限公司 Method for manufacturing single-cavity resonance type silencers for automotive air conditioners

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