Patent ID: 7284970

Claim:
A fluid apparatus having a pump and an accumulator, wherein said pump (P) comprises, in a pump body ( 1 ), a pump inflow passage ( 5 ), a pump outflow passage ( 6 ), and a pump bellows ( 7 ), said pump bellows ( 7 ) has an axis (B), and is extendingly and contractingly deformable in a direction of said axis (B), a pump liquid chamber ( 9 ) is formed inside said pump bellows ( 7 ), a suction port ( 18 ) and a discharge port ( 19 ) are formed in a wall face ( 4 a ) of said pump body ( 1 ) facing said pump liquid chamber ( 9 ), said suction port ( 18 ) communicating with said pump inflow passage ( 5 ), said discharge port ( 19 ) communicating with said pump outflow passage ( 6 ), a suction check valve ( 20 ) is disposed in said suction port ( 18 ), a discharge check valve ( 21 ) is disposed downstream from said pump outflow passage ( 6 ), said accumulator (A) comprises, in an accumulator body ( 25 ), an accumulator inflow passage ( 33 ), an accumulator outflow passage ( 34 ), and an accumulator bellows ( 29 ), said accumulator bellows ( 29 ) has an axis (C), and is extendingly and contractingly deformable in a direction of said axis (C), an accumulator liquid chamber ( 31 ) is formed inside said accumulator bellows ( 29 ), an inflow port ( 23 ) and an outflow port ( 24 ) are formed in a wall face ( 28 a ) of said accumulator body ( 25 ) facing said accumulator liquid chamber ( 31 ), said inflow port ( 23 ) communicating with said accumulator inflow passage ( 33 ), said the outflow port ( 24 ) communicating with said accumulator outflow passage ( 34 ), said accumulator inflow passage ( 33 ) is connected to a downstream of said pump outflow passage ( 6 ), and said discharge check valve ( 21 ) of said pump (P) is disposed in said accumulator inflow passage ( 33 ).