Five chamber wobble plate pump
First Claim
1. A pump, comprising:
- a housing that has an inlet port, an outlet port, a plurality of pump chambers and an inlet manifold passage that provides fluid communication between said inlet port and said pump chambers, said inlet manifold passage having a varying cross-sectional area as said inlet manifold passage extends around said pump chambers;
a plurality of inlet valves that control fluid communication between said inlet manifold passage and said pump chambers;
a plurality of outlet valves that control fluid communication between said pump chambers and said outlet port;
a plurality of pistons adapted to move within said pump chambers; and
, a wobble plate adapted to be rotated and move said pistons within said pump chambers.
1 Assignment
0 Petitions
Accused Products
Abstract
A pump that has an inlet manifold passage with a varying cross-sectional area. The manifold passage provides fluid communication between an inlet port and a plurality of pump chambers within the pump. The varying cross-sectional area may reduce the likelihood of air being entrapped in the pump chambers. Each pump chamber may have a corresponding piston that moves in a reciprocating manner within the chamber. The pistons may be moved by a motor driven wobble plate. Movement of the pistons may pull fluid into the pump chambers through corresponding inlet valves and into an outlet port through corresponding outlet valves. The valves may cooperate with valve seats that each have an outer radius smaller than an inner radius. The pump may have an in-line check valve that controls fluid flow from an outlet manifold passage to the outlet port, and a pressure sensor in fluid communication with the outlet port. The motor may have a leak detector integrated into the metal shell and fasteners of the motor assembly.
112 Citations
20 Claims
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1. A pump, comprising:
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a housing that has an inlet port, an outlet port, a plurality of pump chambers and an inlet manifold passage that provides fluid communication between said inlet port and said pump chambers, said inlet manifold passage having a varying cross-sectional area as said inlet manifold passage extends around said pump chambers;
a plurality of inlet valves that control fluid communication between said inlet manifold passage and said pump chambers;
a plurality of outlet valves that control fluid communication between said pump chambers and said outlet port;
a plurality of pistons adapted to move within said pump chambers; and
,a wobble plate adapted to be rotated and move said pistons within said pump chambers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A pump, comprising:
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a housing that has an inlet port and an outlet port, a plurality of pump chambers, each pump chamber having an inlet valve seat and an outlet valve seat, each inlet valve seat and outlet valve seat having an inner radius and an outer radius;
a plurality of inlet valves that cooperate with said inlet valve seats to control fluid communication between said inlet port and said pump chambers;
a plurality of outlet valves that cooperate with said outlet valve seats to control fluid communication between said pump chambers and said outlet port;
a plurality of pistons adapted to move within said pump chambers; and
,a wobble plate adapted to be rotated and move said pistons within said pump chambers. - View Dependent Claims (13, 14, 15, 16)
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17. A pump, comprising:
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a housing that has an inlet port, a plurality of pump chambers, an outlet port and an outlet manifold passage;
a plurality of inlet valves that control fluid communication between said inlet port and said pump chambers;
a plurality of outlet valves that control fluid communication between said pump chambers and said outlet port;
a check valve that controls fluid communication between said outlet manifold passage and said outlet port and is located in-line with said outlet port;
a plurality of pistons adapted to move within said pump chambers; and
,a wobble plate adapted to be rotated and move said pistons within said pump chambers. - View Dependent Claims (18)
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19. A motor assembly, comprising:
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a housing that has a conductive shell and a non-conductive end piece;
a conductive fastener that is attached to said non-conductive end piece;
a leak detector circuit that is connected to said conductive shell and said conductive fastener; and
,a motor located within said housing. - View Dependent Claims (20)
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Specification