KR102538298B1 - 수송기관의 브레이크 장치에서 발생한 미세먼지를 포집하기 위한 포집장치 및 그 제조방법 - Google Patents
수송기관의 브레이크 장치에서 발생한 미세먼지를 포집하기 위한 포집장치 및 그 제조방법 Download PDFInfo
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- KR102538298B1 KR102538298B1 KR1020200185420A KR20200185420A KR102538298B1 KR 102538298 B1 KR102538298 B1 KR 102538298B1 KR 1020200185420 A KR1020200185420 A KR 1020200185420A KR 20200185420 A KR20200185420 A KR 20200185420A KR 102538298 B1 KR102538298 B1 KR 102538298B1
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- porous ceramic
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Abstract
Description
도 3은 포집장치가 브레이크 장치에 결합된 모습의 일 예를 보여주는 도면이다.
도 4는 다공성 세라믹 폼의 일 예를 개략적으로 도시한 도면이다.
도 5는 벽체의 표면에서 휘스커가 돌출된 구조의 일 예를 개략적으로 도시한 도면이다.
도 6은 다공성 세라믹 폼의 다른 예를 개략적으로 도시한 도면이다.
도 7은 제1 영역(A)과 제2 영역(B)을 더욱 명확하게 나타내기 위하여 도 6에 나타낸 다공성 세라믹 폼의 일부를 절단하여 나타낸 도면이다.
도 8 및 도 9는 다공성 세라믹 폼의 또 다른 예를 개략적으로 도시한 도면이다.
도 10은 도 8 및 도 9에 나타낸 다공성 세라믹 폼이 적용된 포집장치를 개략적으로 도시한 부분 분해 사시도이다.
도 11은 도 8 및 도 9에 나타낸 다공성 세라믹 폼이 적용된 포집장치가 브레이크 장치에 결합된 모습의 일 예를 보여주는 도면이다.
도 12는 실험예 1에서 폴리머 폼으로 사용된 폴리우레탄 폼을 보여주는 사진이다.
도 13은 실험예 1에 따라 폴리머 폼에 세라믹 슬러리가 딥 코팅되어 건조된 모습을 보여주는 사진이다.
도 14는 실험예 1에 따라 제조된 다공성 세라믹 폼을 보여주는 사진이다.
도 15a 내지 도 15c는 실험예 1에 따라 제조된 다공성 세라믹 폼의 미세구조를 보여주는 주사전자현미경(SEM; scanning electron microscope) 사진이다.
도 16은 실험예 2에 따라 휘스커가 형성된 다공성 세라믹 폼을 보여주는 사진이다.
도 17a 내지 도 18d는 실험예 2에 따라 휘스커가 형성된 다공성 세라믹 폼의 미세구조를 보여주는 주사전자현미경(SEM) 사진이다.
20: 브레이크 패드
30: 브레이크 캘리퍼
110: 제1 컬렉터
120: 제2 컬렉터
130: 상부 컬렉터
140: 리브
150: 채널
160: 제1 컬렉터 커버
170: 제2 컬렉터 커버
180: 상부 컬렉터 커버
Claims (19)
- 수송기관의 브레이크 장치에서 로터와 브레이크 패드의 마찰에 의해 발생한 미세먼지를 포집하기 위한 장치로서,
상기 로터의 외측면 일부를 감싸는 제1 컬렉터;
상기 로터의 바깥 둘레면 일부를 감싸는 상부 컬렉터; 및
상기 로터의 내측면 일부를 감싸는 제2 컬렉터를 포함하고,
상기 제1 컬렉터와 상기 제2 컬렉터는,
다공성 세라믹 폼으로 이루어지고,
상기 다공성 세라믹 폼은,
미세먼지가 유입되는 통로 역할을 하는 기공(셀); 및
상기 기공(셀) 사이에서 다공성 세라믹 폼의 골격(strut)을 이루는 벽체를 포함하며,
다수의 휘스커가 상기 벽체의 표면에서 기공(셀)을 향해 돌출되어 있으며,
상기 다공성 세라믹 폼은, 세라믹 슬러리가 다공성의 폴리머 폼에 딥 코팅(Dip coating) 되고 딥 코팅이 이루어진 폴리머 폼이 건조된 후 소결되어 폴리머 성분이 태워져서 형성된 것이고,
상기 휘스커는, 휘스커를 구성하는 성분의 소스 물질, 바인더 및 용매를 포함하는 세라믹 슬러리가 상기 다공성 세라믹 폼에 딥 코팅(Dip coating) 되고 딥 코팅이 이루어진 다공성 세라믹 폼이 건조된 후 소결되어 형성된 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 포집장치는 전체 외관상 U자형으로 구비되어 상기 U자형 내부로 상기 로터를 부분 수용하도록 구성되는 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 제1 컬렉터는 상기 로터의 외측면과 마주하게 구비되고,
상기 제2 컬렉터는 상기 로터의 내측면과 마주하게 구비되며,
상기 제2 컬렉터는 디스크 형상의 로터를 기준으로 상기 제1 컬렉터가 있는 반대편에 위치되고,
상기 제1 컬렉터와 상기 제2 컬렉터는 상기 로터를 기준으로 서로 마주하게 배치되는 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 제1 컬렉터를 덮어 보호하고 상기 제1 컬렉터로 유입된 미세먼지가 외부로 유출되는 것을 억제하기 위한 제1 컬렉터 커버; 및
상기 제2 컬렉터를 덮어 보호하고 상기 제2 컬렉터로 유입된 미세먼지가 외부로 유출되는 것을 억제하기 위한 제2 컬렉터 커버를 더 포함하는 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 상부 컬렉터를 보호하기 위한 상부 컬렉터 커버가 상기 상부 컬렉터 상부에 더 구비되어 있는 것을 특징으로 하는 포집장치.
- 제5항에 있어서, 상기 상부 컬렉터에서 걸러진 깨끗한 공기가 외부로 빠져나갈 수 있도록 상기 상부 컬렉터 커버에 구멍들이 형성되어 있는 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 다공성 세라믹 폼은 알루미나(Al2O3), 코디어라이트(cordierite, 2MgO·2Al2O3·5SiO2), 뮬라이트(mullite, 3Al2O3·2SiO2) 및 탄화규소(SiC)로 이루어진 군으로부터 선택된 1종 이상의 세라믹 재질인 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 다공성 세라믹 폼은 기공율이 40∼90%를 이루는 것을 특징으로 하는 포집장치.
- 삭제
- 제1항에 있어서, 상기 휘스커는 뮬라이트(mullite, 3Al2O3·2SiO2), ZnO 및 탄화규소(SiC)로 이루어진 군으로부터 선택된 1종 이상의 침상형 세라믹 재질로 이루어진 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 다공성 세라믹 폼은,
제2 영역에 비해 상대적으로 작은 크기의 기공들이 분포하는 제1 영역; 및
상기 제1 영역에 비해 상대적으로 큰 크기의 기공들이 분포하는 제2 영역을 포함하고,
상기 제1 영역은 상기 제2 영역에서 포집되는 미세먼지보다 더 작은 크기의 미세먼지를 포집할 수 있는 것을 특징으로 하는 포집장치.
- 제11항에 있어서, 상기 제1 영역보다 상기 제2 영역이 상기 로터에 더 인접하게 위치되는 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 상부 컬렉터는 다공성 세라믹 폼으로 이루어진 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 제1 컬렉터 및 상기 제2 컬렉터는 돌출된 단턱부를 갖는 다공성 세라믹 폼으로 이루어진 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 다공성 세라믹 폼은 소수성 코팅막으로 도포되어 있고 소수성을 나타내는 것을 특징으로 하는 포집장치.
- 제1항에 있어서, 상기 제1 컬렉터와 상기 제2 컬렉터는,
사행(serpentine type) 형태로 배열된 리브들과, 리브와 리브 사이의 빈 공간을 이루는 채널을 포함하는 것을 특징으로 하는 포집장치.
- 제16항에 있어서, 상기 리브들은 곡선형 형태를 이루는 것을 특징으로 하는 포집장치.
- 제16항에 있어서, 상기 제1 컬렉터와 상기 제2 컬렉터에서,
리브의 단부에는 리브블럭이 구비되고, 상기 리브블럭은 리브와 리브를 연결하는 매개체이며,
상기 로터와 상기 브레이크 패드의 마찰에 의해 발생한 미세먼지는 상기 채널의 유입구를 통해 유입되고,
상기 로터의 회전축인 X축에 수직한 Y축 방향으로는 상기 채널의 유입구와 리브블럭 사이의 빈 공간이 상기 채널을 이루는 영역이고, 상기 X축 및 Y축에 수직한 Z축 방향으로는 리브와 리브 사이의 빈 공간이 상기 채널을 이루는 영역인 것을 특징으로 하는 포집장치. - 로터의 외측면 일부를 감싸면서 다공성 세라믹 폼으로 이루어진 제1 컬렉터, 상기 로터의 바깥 둘레면 일부를 감싸는 상부 컬렉터 및 상기 로터의 내측면 일부를 감싸면서 다공성 세라믹 폼으로 이루어진 제2 컬렉터를 포함하는 포집장치를 제조하는 방법으로서,
세라믹 슬러리를 다공성의 폴리머 폼에 딥 코팅(Dip coating) 하는 단계;
딥 코팅이 이루어진 폴리머 폼을 건조하는 단계;
딥 코팅이 이루어진 폴리머 폼을 소결하여 폴리머 성분이 태워져서 제거된 다공성 세라믹 폼을 형성하는 단계;
휘스커를 구성하는 성분의 소스 물질, 바인더 및 용매를 포함하는 세라믹 슬러리를 상기 다공성 세라믹 폼에 딥 코팅(Dip coating) 하는 단계;
딥 코팅이 이루어진 다공성 세라믹 폼을 건조하는 단계; 및
딥 코팅이 이루어진 다공성 세라믹 폼을 소결하여 휘스커가 구비된 다공성 세라믹 폼을 형성하는 단계를 포함하며,
상기 다공성 세라믹 폼은,
미세먼지가 유입되는 통로 역할을 하는 기공(셀); 및
상기 기공(셀) 사이에서 다공성 세라믹 폼의 골격(strut)을 이루는 벽체를 포함하며,
다수의 휘스커가 상기 벽체의 표면에서 기공(셀)을 향해 돌출되어 있는 것을 특징으로 하는 포집장치의 제조방법.
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