Patent ID: 7100454
Filing Date: 2006-09-05
Classification: G01L

Abstract:
1. An in-line type fluid pressure sensor comprising a body member ( 1 ) and a sensor module ( 2 ), wherein: said body member ( 1 ) is provided with an upstream-side connection port ( 5 ), a downstream-side connection port ( 6 ) and an upper portion; said upstream-side connection port ( 5 ) and said downstream-side connection port ( 6 ) both are connected with a fluid flow passage ( 9 ) of a fluid flow circuit through which a fluid is circulated; said sensor module ( 2 ) is disposed in said upper portion of said body member ( 1 ); an intermediate portion of said fluid flow passage ( 9 ) extending from said upstream-side connection port ( 5 ) to said downstream-side connection port ( 6 ) is moderately bent to form a fluid introduction portion ( 9 a ) of said body member ( 1 ), which introduction portion ( 9 a ) assumes a substantially inverted V-shaped form in contour in longitudinal section of said fluid flow passage ( 9 ) so as to form an upper wall of said fluid flow passage ( 9 ) into said substantially inverted V-shaped form or into a divergent shape in contour in longitudinal section of said fluid flow passage ( 9 ), wherein an upper end portion of said fluid introduction portion ( 9 a ) forms an opening through which a fluid pressure receiving surface of said sensor module ( 2 ) is brought into contact with said fluid to realize a precise measurement of fluid pressure of said fluid; said flow passage (