| 摘要 |
<p>PURPOSE:To increase an intake air temperature as well as to improve the extent of ignitability by installing an on-off valve each in an operating side intake passage and a nonoperating side exhaust passage, and connecting the upstream side of an exhaust side on-off valve and the downstream side of an intake side on-off valve with an interconnecting passage, while making an exhaust valve of the nonoperating cylinder possible for continuous opening. CONSTITUTION:In a 4-cylindered diesel engine which sets two #1, #4 cylinders, or the same phase of their pistons, down to the operating side cylinder, and #2, #3 cylinders of the same phase likewise to the nonoperating side cylinder, respectively, an opening 43c for the #1 cylinder is installed in an operating side intake passage 43a, interconnecting it to a manifold 43d, and simultaneously a selector valve 42 is installed at the upstream side of this opening 43c. In addition, an opening 49a being opened or closed by this selector valve 42 installed in the operating side intake passage 43a, an opening 49b at the other end of an interconnecting passage 49 in a nonoperating side exhaust passage 46, respectively, whereby nonoperating side exhaust is made inducible into the operating side intake passage 43a. At time of nonoperation of partial cylinders, an exhaust valve 51 in the nonoperating cylinder is made so as to be continuously opened by operation of an opening cam 52.</p> |
