Jet pump for boosting pressure at an inlet supplied from a...

Details Jet pump for boosting pressure at an inlet supplied from a... Jet pump for boosting pressure at an inlet supplied from a...

2007-03-20

2007-03-20

Koczo, Jr., Michael (Department: 3746)

Pumps

One fluid pumped by contact or entrainment with another

Jet pump with motive fluid generating pump

C417S089000

Reexamination Certificate

active

10662105

ABSTRACT:
The automatic transmission for motor vehicles includes a positive displacement pump, a sump hydraulically connected by a passage to the pump inlet, a line pressure control valve having a high pressure outlet, a passage carrying fluid from the control valve through a nozzle and an nozzle exit opening to the passage that connects the sump to the pump inlet. The high pressure passage has a cross section whose area decreases in the direction toward the pump inlet and terminates in a nozzle through which a high speed jet enters the low pressure passage through the nozzle exit opening.

REFERENCES:
patent: 3620646 (1971-11-01), Stevenson et al.
patent: 3981626 (1976-09-01), Onal
patent: 4033706 (1977-07-01), Schaefer et al.
patent: 5878632 (1999-03-01), Hübler et al.
patent: 6155793 (2000-12-01), Tuckey et al.
patent: 6572339 (2003-06-01), Walton et al.
patent: 6666655 (2003-12-01), Heath et al.
patent: 53-36707 (1978-04-01), None

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