| 摘要 |
1319714 Vehicle exhaust systems EUCLID Inc 27 May 1971 [3 June 1970] 17577/71 Heading B7H A load carrying vehicle with a dump body has a valve member with a first position in which exhaust gas is diverted from the engine for heating the dump body and a second position -in which the gas is diverted directly to the atmosphere, and an actuating mechanism in which a push rod is engaged by the dump body in a load carrying position to move the valve to its first, body heating position, with a yieldable connection to permit overtravel of the rod. In a preferred embodiment, Fig. 3, the valve member is carried by a rock shaft 92 driven via a crank arm 104 by push rod 112; the yieldable connection including a sleeve portion 110 receiving a part of the push rod 112 with spring 130 providing resilience for the overtravel and weaker return spring 116 for biasing the push rod upwardly corresponding to the second valve position. In a modification, Fig. 4, the yieldable connection comprises a leaf spring 170 and a counterweight 176 is connected to the rock shaft for moving the valve member to its diverting position when the dump body is moved from its load carrying position. |
