| 摘要 |
A pump assembly 10 comprises a first body portion 11, a second body portion 12, an inlet port 13, an outlet port 14 and a pumping chamber defined between the first and second body portions which encloses a pumping mechanism e.g. a gear pump, to pump fluid from the inlet to the outlet. The first and second body portions are secured together by a resiliently biased fastening mechanism 16, 19 to provide a fluid seal around the pumping chamber. The fastening mechanism may comprise one or more bolts through the body portions and a resilient ring around each bolt to allow reversible separation of the body portions by elastic deformation of at least a portion of the fastening mechanism to avoid ice damage. May be used as a submerged pump in a vehicle fuel cell pure cooling water tank which may freeze in cold conditions. |
