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Title: Cryogenic expansion machine

Abstract

A cryogenic expansion engine includes intake and exhaust poppet valves each controlled by a cam having adjustable dwell, the valve seats for the valves being threaded inserts in the valve block. Each cam includes a cam base and a ring-shaped cam insert disposed at an exterior corner of the cam base, the cam base and cam insert being generally circular but including an enlarged cam dwell, the circumferential configuration of the cam base and cam dwell being identical, the cam insert being rotatable with respect to the cam base. GI CONTRACTUAL ORIGIN OF THE INVENTION The invention described herein was made in the course of, or under, a contract with the UNITED STATES ENERGY RESEARCH AND DEVELOPMENT ADMINISTRATION.

Inventors:
 [1];  [2]
  1. Woodridge, IL
  2. Palos Park, IL
Issue Date:
OSTI Identifier:
863073
Patent Number(s):
4087988
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
E(49-8)-3000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
cryogenic; expansion; machine; engine; intake; exhaust; poppet; valves; controlled; adjustable; dwell; valve; seats; threaded; inserts; block; base; ring-shaped; insert; disposed; exterior; corner; circular; including; enlarged; circumferential; configuration; identical; rotatable; respect; contractual; origin; described; course; contract; united; energy; administration; valve seat; valve block; valve seats; expansion engine; cryogenic expansion; threaded insert; /62/74/91/505/

Citation Formats

Pallaver, Carl B, and Morgan, Michael W. Cryogenic expansion machine. United States: N. p., 1978. Web.
Pallaver, Carl B, & Morgan, Michael W. Cryogenic expansion machine. United States.
Pallaver, Carl B, and Morgan, Michael W. Sun . "Cryogenic expansion machine". United States. https://www.osti.gov/servlets/purl/863073.
@article{osti_863073,
title = {Cryogenic expansion machine},
author = {Pallaver, Carl B and Morgan, Michael W},
abstractNote = {A cryogenic expansion engine includes intake and exhaust poppet valves each controlled by a cam having adjustable dwell, the valve seats for the valves being threaded inserts in the valve block. Each cam includes a cam base and a ring-shaped cam insert disposed at an exterior corner of the cam base, the cam base and cam insert being generally circular but including an enlarged cam dwell, the circumferential configuration of the cam base and cam dwell being identical, the cam insert being rotatable with respect to the cam base. GI CONTRACTUAL ORIGIN OF THE INVENTION The invention described herein was made in the course of, or under, a contract with the UNITED STATES ENERGY RESEARCH AND DEVELOPMENT ADMINISTRATION.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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