CPC F02M 63/0014 (2013.01) [F16K 31/52408 (2013.01)] | 20 Claims |
1. A mechanically actuated fuel injector system comprising:
an upper support;
a set of arms supported by the upper support and individually rotatable around a shaft, the set of arms including an injector arm between a first rocker arm and a second rocker arm;
a lower support spaced from the upper support;
a set of pushrods respectively operatively coupled to the set of arms, the set of pushrods including an injector pushrod between a first valve pushrod and a second valve pushrod;
a set of cam followers respectively operatively coupled to the set of pushrods, the set of cam followers including an injector cam follower between a first cam follower associated with the first valve pushrod and a second cam follower associated with the second valve pushrod;
a hold down clamp extending from the upper support, the hold down clamp having an opening extending therethrough, the injector pushrod extending through the opening;
a helper spring around the injector pushrod, between the hold down clamp and the lower support;
a retention seat circumscribing the injector pushrod, a lower end of the helper spring being seated in the retention seat; and
a spacer between the hold down clamp and the helper spring, an upper end of the helper spring abutting a lower end of the spacer, and an upper end of the spacer abutting a lower surface of the hold down clamp.
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