| 摘要 |
PURPOSE: A decompression noise reduction type pump housing apparatus is provided to reduce vibration and noise due to water hammering in a reflux line by an impact absorber transferred along a decompression groove part, absorbing the decompression noise. CONSTITUTION: A decompression noise reduction type pump housing apparatus(1) comprises a reflux line(12), a decompression groove part(20), and an impact absorber(40). The reflux line comprises a wheel port(10) connected to a wheel cylinder. The reflux line includes an outlet valve(52) during decompression. The decompression groove part forms the space divided from the reflux line and is formed in the location faced with the wheel port at a bent part of the reflux line. The impact absorber carried along the decompression groove part absorbs the decompression noise generated in the reflux line. |
