Ambient air timing device

Details Ambient air timing device Ambient air timing device

1979-08-22

1981-11-24

Croyle, Carlton R.

Pumps

Condition responsive control of pump drive motor

By controlling drive motor motive fluid

91337, 417403, F04B 4900

Patent

active

043021590

ABSTRACT:
An air timing device for a high pressure reciprocating injector pump 14 employing a piston or movable wall 50 and orifice 48 combination that is mechanically reset on the suction stroke of the pump includes a bellows 42 defining a variable volume chamber 44 including at least one movable wall. An adjustable orifice 46 in parallel with a check valve is defined in the chamber to provide adjustable flow out of the chamber and full flow through the check valve into the chamber. The wall is connected to a piston 18 of the reciprocating pump by an arm 38 that is fixedly secured to the piston and slideably secured to the wall. A selector valve 62 is also included for directing supply fluid to a selected side of the pump piston to reciprocate the pump. The valve includes a spool valve connected to the wall by a second arm. The fluid within the chamber defined by the bellows may be employed in a closed system wherein the fluid is exhausted from the chamber to an external chamber for reuse during the next stroke of the pump or in an alternative embodiment, the fluid may be exhausted to the atmosphere.

REFERENCES:
patent: 1617516 (1927-02-01), Farquhar
patent: 2551292 (1953-09-01), Cornett
patent: 2569213 (1951-09-01), Adams
patent: 2861144 (1958-11-01), Favre
patent: 3387563 (1968-06-01), Williams et al.
patent: 3846049 (1974-11-01), Douglas
patent: 4030857 (1977-06-01), Smith
patent: 4082481 (1978-04-01), Fenne
patent: 4147179 (1979-04-01), Miura
patent: 4161308 (1979-07-01), Bell et al.

Affiliated with

Also associated with

Rating

Ambient air timing device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ambient air timing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ambient air timing device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2172282